Nissan Rogue manuals

Nissan Rogue Service Manual: DTC/Circuit diagnosis

C1201 AWD CONTROL UNIT

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
C1201 CONTROLLER FAILURE (Control unit failure) Malfunction has occurred inside AWD control unit.

POSSIBLE CAUSE

Internal malfunction of AWD control unit

FAIL-SAFE

AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch OFF to ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “C1201” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-36, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.PERFORM SELF-DIAGNOSIS

With CONSULT

  1.  Erase self-diagnostic results for “ALL MODE AWD/4WD”.
  2.  Turn the ignition switch OFF, and then wait 10 seconds or more.
  3.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “C1201” detected? YES >> Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace error-detected parts.

C1203 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
C1203 ABS SYSTEM (ABS system) Malfunction related to wheel sensor has been detected by ABS actuator and electric unit (control unit).

POSSIBLE CAUSE

ABS malfunction

FAIL-SAFE

AWD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Drive at 30 km/h (19 MPH) or more for approximately 1 minute.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “C1203” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-37, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ABS”.

Is any DTC detected? YES >> Check the DTC. Refer to BRC-55, "DTC Index".

NO >> GO TO 2.

2.CHECK TERMINALS AND HARNESS CONNECTORS

Check AWD control unit pin terminals for damage or loose connection with harness connector.

Is inspection result normal? YES >> After turning the ignition switch OFF, perform DTC confirmation procedure again. If DTC “C1203” is detected, Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

C1204 AWD SOLENOID

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
C1204 4WD SOLENOID (4WD solenoid) Malfunction related to AWD solenoid has been detected.

POSSIBLE CAUSE

FAIL-SAFE

AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch OFF to ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “C1204” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-38, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.CHECK AWD SOLENOID POWER SUPPLY (1)

  1.  Turn the ignition switch OFF.
  2.  Disconnect AWD control unit harness connector.
  3.  Check the voltage between AWD control unit harness connector and ground.

Check AWD solenoid power supply (1)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2. Check the voltage between AWD control unit harness connector and ground.

Check AWD solenoid power supply (1)

Is the inspection result normal?

YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK AWD SOLENOID POWER SUPPLY (2)

  1.  Turn the ignition switch OFF.
  2.  Check the 10A fuse (#16).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD solenoid power supply (2)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD solenoid power supply (2)

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit. Refer to PG-4, "Wiring Diagram — Battery Power Supply —".

NO >> Repair or replace error-detected parts.

3.CHECK AWD SOLENOID GROUND

Check the continuity between AWD control unit harness connector and ground.

Check AWD solenoid ground

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace error-detected parts.

4.CHECK AWD SOLENOID CIRCUIT (1)

Check the resistance between AWD control unit harness connector.

Check AWD solenoid circuit (1)

Is the inspection result normal? YES >> GO TO 7.

NO >> GO TO 5.

5.CHECK AWD SOLENOID CIRCUIT (2)

  1.  Remove AWD solenoid harness connector.
  2.  Check the continuity between AWD control unit harness connector and AWD solenoid harness connector.

Check AWD solenoid circuit (2)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD solenoid circuit (2)

Is the inspection result normal? YES >> GO TO 6.

NO >> Repair or replace error-detected parts.

6.CHECK AWD SOLENOID

Check AWD solenoid. Refer to DLN-40, "Component Inspection".

Is the inspection result normal? YES >> GO TO 7.

NO >> AWD solenoid is malfunctioning. Replace electric controlled coupling. Refer to DLN-114, "Removal and Installation".

7.CHECK TERMINALS AND HARNESS CONNECTORS

Is the inspection result normal? YES >> Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

Component Inspection

1.CHECK AWD SOLENOID

  1. Turn the ignition switch OFF.
  2.  Disconnect AWD solenoid harness connector.
  3.  Check the resistance between AWD solenoid harness connector terminals.

Check AWD solenoid

Is the inspection result normal? YES >> INSPECTION END

NO >> AWD solenoid is malfunctioning. Replace electric controlled coupling. Refer to DLN-114, "Removal and Installation".

C1209 MODE SW

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
C1209 MODE SW (Mode switch) More than two switch inputs are simultaneously detected due to short circuit of AWD lock switch.

POSSIBLE CAUSE

Malfunction of AWD lock switch or AWD lock switch circuit.

FAIL-SAFE

AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch OFF to ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “C1209” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-41, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.CHECK AWD LOCK SWITCH

Check AWD lock switch. Refer to DLN-42, "Component Inspection".

Is the inspection result normal? YES >> GO TO 2.

NO >> Replace AWD lock switch. Refer to DLN-68, "Removal and Installation".

2.CHECK AWD LOCK SWITCH CIRCUIT (1)

Check the continuity between AWD lock switch harness connector and ground.

Check AWD lock switch circuit (1)

Is the inspection result normal? YES >> GO TO 3.

NO >> Repair or replace damaged parts.

3.CHECK AWD LOCK SWITCH CIRCUIT (2)

  1.  Disconnect AWD control unit harness connector.
  2.  Check the continuity between AWD control unit harness connector and AWD lock switch harness connector.

Check AWD lock switch circuit (2)

  1. Check the continuity between AWD control unit harness connector and ground.

Check AWD lock switch circuit (2)

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace damaged parts.

4.CHECK AWD CONTROL UNIT OUTPUT SIGNAL

  1.  Connect AWD control unit harness connector.
  2.  Turn the ignition switch ON.

    CAUTION: Never start the engine.

  3.  Check the voltage between AWD lock switch harness connector and ground.

Check AWD control unit output signal

Is the inspection result normal? YES >> Check each harness connector pin terminal for disconnection.

NO >> Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

Component Inspection

1.CHECK AWD LOCK SWITCH

  1.  Turn the ignition switch OFF.
  2.  Remove AWD lock switch.
  3.  Check the continuity between AWD lock switch connector terminals.

Check AWD lock switch

Is the inspection result normal? YES >> INSPECTION END

NO >> Replace AWD lock switch. Refer to DLN-68, "Removal and Installation".

C1210 ECM

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
C1210 ENGINE SIGNAL 1 (Engine signal 1) Malfunction related to engine signal has been detected.

POSSIBLE CAUSE

Malfunction of engine control system

FAIL-SAFE

AWD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Drive the vehicle for a while.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “C1210” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-43, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.PERFORM ECM SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ENGINE”.

Is any DTC detected? YES >> Check the DTC. Refer to EC-93, "DTC Index".

NO >> GO TO 2.

2.CHECK TERMINALS AND HARNESS CONNECTORS

Check AWD control unit pin terminals for damage or loose connection with harness connector.

Is inspection result normal? YES >> After turning the ignition switch OFF, perform DTC confirmation procedure again. If DTC “C1210” is detected, Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

P1804 AWD CONTROL UNIT

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P1804 CONTROL UNIT (Control unit) Malfunction is detected in the memory (EEPROM) system of AWD control unit.

POSSIBLE CAUSE

Internal malfunction of AWD control unit.

FAIL-SAFE

AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “P1804” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-44, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.REPLACE AWD CONTROL UNIT

CAUTION: Replace AWD control unit when DTC “P1804” is detected simultaneously with other items.

>> Replace AWD control unit. Refer DLN-67, "Removal and Installation".

P1808 WHEEL SPEED SENSOR

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P1808 VHCL SPEED SEN-ABS (Vehicle speed sensor-ABS)
  • Malfunction is detected in vehicle speed signal that is output from ABS actuator and electric unit (control unit) through CAN communication.
  •  Improper signal is input while driving

POSSIBLE CAUSE

FAIL-SAFE

AWD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “P1808” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-45, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ABS”.

Is any DTC detected? YES >> Check the DTC. Refer to BRC-55, "DTC Index".

NO >> GO TO 2.

2.CHECK TERMINALS AND HARNESS CONNECTORS

Check AWD control unit pin terminals for damage or loose connection with harness connector.

Is inspection result normal? YES >> After turning the ignition switch OFF, perform DTC confirmation procedure again. If DTC “P1808” is detected, Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

P1809 AWD CONTROL UNIT

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P1809 CONTROL UNIT (Control unit) AD converter system of AWD control unit is malfunctioning.

POSSIBLE CAUSE

Internal malfunction of AWD control unit

FAIL-SAFE

AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “P1809” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-46, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.REPLACE AWD CONTROL UNIT

CAUTION: Replace AWD control unit when DTC “P1809” is detected simultaneously with other items.

>> Replace AWD control unit. Refer DLN-67, "Removal and Installation".

P1811 BATTERY VOLTAGE

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P1811 BATTERY VOLTAGE (Battery voltage) When engine is running and AWD control unit power supply is less than 9 V or higher than 16 V.

POSSIBLE CAUSE

FAIL-SAFE

AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “P1811” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-47, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.CHECK AWD CONTROL UNIT POWER SUPPLY (1)

  1.  Turn the ignition switch OFF.
  2.  Disconnect AWD control unit harness connector.
  3.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (1)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2. Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (1)

Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK AWD CONTROL UNIT POWER SUPPLY (2)

  1.  Turn the ignition switch OFF.
  2.  Check the 10A fuse (#30).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD control unit power supply (2)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD control unit power supply (2)

Is the inspection result normal? YES >> Perform the trouble diagnosis for ignition power supply circuit. Refer to PG-15, "Wiring Diagram — Ignition Power Supply —".

NO >> Repair or replace error-detected parts.

3.CHECK AWD CONTROL UNIT POWER SUPPLY (3)

  1.  Turn the ignition switch OFF.
  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (3)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (3)

Is the inspection result normal? YES >> GO TO 5.

NO >> GO TO 4.

4.CHECK AWD CONTROL UNIT POWER SUPPLY (4)

  1.  Turn the ignition switch OFF.
  2.  Check the 5A fuse (#9).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD control unit power supply (4)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD control unit power supply (4)

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit. Refer to PG-4, "Wiring Diagram — Battery Power Supply —".

NO >> Repair or replace error-detected parts.

5.CHECK AWD CONTROL UNIT GROUND

  1.  Turn the ignition switch OFF.
  2.  Check the continuity between AWD control unit harness connector and ground.

Check AWD control unit ground

Is the inspection result normal? YES >> GO TO 6.

NO >> Repair or replace error-detected parts.

6.CHECK TERMINALS AND HARNESS CONNECTORS

Check AWD control unit pin terminals for damage or loose connection with harness connector.

Is the inspection result normal? YES >> After turning the ignition switch OFF, perform DTC confirmation procedure again. When DTC “P1811” is detected, Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

P181B INCOMPLETE SELFSHUT

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P181B INCOMP SELF SHUT (Incomplete self shut) When ignition switch is ON, self-shut of AWD control unit was incomplete.

POSSIBLE CAUSE

FAIL-SAFE

No impact to vehicle behavior.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “P181B” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-50, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.CHECK AWD CONTROL UNIT POWER SUPPLY (1)

  1.  Turn the ignition switch OFF.
  2.  Disconnect AWD control unit harness connector.
  3.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (1)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (1)

Is the inspection result normal?

YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK AWD CONTROL UNIT POWER SUPPLY (2)

  1.  Turn the ignition switch OFF.
  2.  Check the 10A fuse (#30).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD control unit power supply (2)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD control unit power supply (2)

Is the inspection result normal? YES >> Perform the trouble diagnosis for ignition power supply circuit. Refer to PG-15, "Wiring Diagram — Ignition Power Supply —".

NO >> Repair or replace error-detected parts.

3.CHECK AWD CONTROL UNIT POWER SUPPLY (3)

  1.  Turn the ignition switch OFF.
  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (3)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (3)

Is the inspection result normal? YES >> GO TO 5.

NO >> GO TO 4.

4.CHECK AWD CONTROL UNIT POWER SUPPLY (4)

  1.  Turn the ignition switch OFF.
  2.  Check the 5A fuse (#9).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD control unit power supply (4)

  1. Check the continuity between AWD control unit harness connector and the ground

Check AWD control unit power supply (4)

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit. Refer to PG-4, "Wiring Diagram — Battery Power Supply —".

NO >> Repair or replace error-detected parts.

5.CHECK AWD CONTROL UNIT GROUND

  1.  Turn the ignition switch OFF.
  2.  Check the continuity between AWD control unit harness connector and ground.

Check AWD control unit ground

Is the inspection result normal? YES >> GO TO 6.

NO >> Repair or replace error-detected parts.

6.CHECK TERMINALS AND HARNESS CONNECTORS

Check AWD control unit pin terminals for damage or loose connection with harness connector.

Is the inspection result normal? YES >> After turning the ignition switch OFF, perform DTC confirmation procedure again. When DTC “P181B” is detected, Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

P181D ENGINE TORQUE SIGNAL

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P181D ENGINE SYSTEM (Engine system) Malfunction related to engine signal has been detected.

POSSIBLE CAUSE

FAIL-SAFE

AWD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Drive the vehicle for a while.
  2.  Stop the vehicle.
  3.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “P181D” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-53, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.PERFORM ECM SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “ENGINE”.

Is any DTC detected? YES >> Check the DTC. Refer to EC-93, "DTC Index".

NO >> GO TO 2.

2.CHECK TERMINALS AND HARNESS CONNECTORS

Check AWD control unit pin terminals for damage or loose connection with harness connector.

Is inspection result normal? YES >> After turning the ignition switch OFF, perform DTC confirmation procedure again. If DTC “P181D” is detected, Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

P181F INCOMPLETE CALIBRATION

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P181F INCOMP CALIBRATION (incomplete calibration) When incomplete writing unit characteristics of electric controlled coupling are detected.

POSSIBLE CAUSE

Writing unit characteristics are incomplete.

FAIL-SAFE

AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch OFF to ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “P181F” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-54, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.PERFORM WRITING UNIT CHARACTERISTICS

  1. Erase self-diagnostic result for “ALL MODE AWD/4WD”.
  2.  Perform writing unit characteristics. Refer to DLN-35, "Work Procedure".
  3.  Turn the ignition switch OFF to ON.
  4.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is any DTC except “P181F” detected? YES >> Perform trouble diagnosis for detected DTC. Refer to DLN-23, "DTC Index".

NO >> GO TO 2.

2.PERFORM SELF-DIAGNOSIS AGAIN

With CONSULT

Perform “DTC CONFIRMATION PROCEDURE” (self-diagnosis) again. Refer to DLN-54, "DTC Description".

Is DTC “P181F” detected? YES >> Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace error-detected parts.

U1000 CAN COMM CIRCUIT

DTC Description

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.

Each control unit communicate data but selectively reads required data only.

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
U1000 CAN COMM CIRCUIT (CAN communication circuit) AWD control unit is not transmitting/receiving CAN communication signal for 2 seconds or more.

POSSIBLE CAUSE

FAIL-SAFE

AWD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch OFF to ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “U1000” detected? YES >> Proceed to diagnosis procedure. Refer to DLN-55, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

Proceed to LAN-17, "Trouble Diagnosis Flow Chart".

U1010 CONTROL UNIT (CAN)

DTC Description

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.

Each control unit communicate data but selectively reads required data only.

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
U1010 CONTROL UNIT (CAN) [Control unit (CAN)] Detecting error during the initial diagnosis of CAN controller of AWD control unit.

POSSIBLE CAUSE

Internal malfunction of AWD control unit

FAIL-SAFE

AWD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then AWD control stops, and the vehicle becomes front-wheel drive.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

  1.  Turn the ignition switch OFF to ON.
  2.  Perform self-diagnosis for “ALL MODE AWD/4WD”.

Is DTC “U1010” detected?

YES >> Proceed to diagnosis procedure. Refer to DLN-56, "Diagnosis Procedure".

NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".

NO-2 >> Confirmation after repair: INSPECTION END

Diagnosis Procedure

1.CHECK AWD CONTROL UNIT

Check AWD control unit harness connector for disconnection and deformation.

Is the inspection result normal? YES >> Replace AWD control unit. Refer to DLN-67, "Removal and Installation".

NO >> Repair or replace error-detected parts.

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

1.CHECK AWD CONTROL UNIT POWER SUPPLY (1)

  1.  Turn the ignition switch OFF.
  2.  Disconnect AWD control unit harness connector.
  3.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (1)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (1)

Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK AWD CONTROL UNIT POWER SUPPLY (2)

  1.  Turn the ignition switch OFF.
  2.  Check the 10A fuse (#30).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD control unit power supply (2)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD control unit power supply (2)

Is the inspection result normal? YES >> Perform the trouble diagnosis for ignition power supply circuit. Refer to PG-15, "Wiring Diagram — Ignition Power Supply —".

NO >> Repair or replace error-detected parts.

3.CHECK AWD CONTROL UNIT POWER SUPPLY (3)

  1.  Turn the ignition switch OFF.
  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (3)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2. Check the voltage between AWD control unit harness connector and ground.

Check AWD control unit power supply (3)

Is the inspection result normal? YES >> GO TO 5.

NO >> GO TO 4.

4.CHECK AWD CONTROL UNIT POWER SUPPLY (4)

  1.  Turn the ignition switch OFF.
  2.  Check the 5A fuse (#9).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD control unit power supply (4)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD control unit power supply (4)

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit. Refer to PG-4, "Wiring Diagram — Battery Power Supply —".

NO >> Repair or replace error-detected parts.

5.CHECK AWD SOLENOID POWER SUPPLY (1)

  1.  Turn the ignition switch OFF.
  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD solenoid power supply (1)

  1. Turn the ignition switch ON.

    CAUTION: Never start the engine.

  2.  Check the voltage between AWD control unit harness connector and ground.

Check AWD solenoid power supply (1)

Is the inspection result normal? YES >> GO TO 7.

NO >> GO TO 6.

6.CHECK AWD SOLENOID POWER SUPPLY (2)

  1.  Turn the ignition switch OFF.
  2. Check the 10A fuse (#16).
  3.  Disconnect fuse block (J/B) harness connector.
  4.  Check the continuity between AWD control unit harness connector and fuse block (J/B) harness connector.

Check AWD solenoid power supply (2)

  1. Check the continuity between AWD control unit harness connector and the ground.

Check AWD solenoid power supply (2)

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit. Refer to PG-4, "Wiring Diagram — Battery Power Supply —".

NO >> Repair or replace error-detected parts.

7.CHECK AWD CONTROL UNIT GROUND

  1.  Turn the ignition switch OFF.
  2.  Check the continuity between AWD control unit harness connector and ground.

Check AWD control unit ground

Is the inspection result normal? YES >> INSPECTION END

NO >> Repair or replace error-detected parts.

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