POWER SUPPLY AND GROUND CIRCUIT BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-50, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse is not blown.
Is the fuse blown? YES >> Replace the blown fuse after repairing the affected circuit.
NO >> GO TO 2.
2. CHECK POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 and ground.
Is the inspection result normal? YES >> Inspection End.
NO >> Repair or replace harness or connectors.
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM) : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-110, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse is not blown.
Is the fuse blown? YES >> Replace the blown fuse after repairing the affected circuit.
NO >> GO TO 2.
2. CHECK POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3. CHECK GROUND CIRCUIT
eck continuity between BCM connector M20 and ground.
Is the inspection result normal? YES >> Inspection End.
NO >> Repair or replace harness or connectors.
OPTICAL SENSOR
Component Function Check
1.CHECK OPTICAL SENSOR SIGNAL BY CONSULT
CONSULT DATA MONITOR
*: Illuminates the optical sensor. The value may be less than the standard value if brightness is weak.
Is the inspection result normal? YES >> Optical sensor is normal.
NO >> Refer to EXL-88, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK OPTICAL SENSOR POWER SUPPLY INPUT
Is the inspection result normal? YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK OPTICAL SENSOR GROUND INPUT
Check voltage between optical sensor harness connector and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 6.
3.CHECK OPTICAL SENSOR SIGNAL OUTPUT
With illuminating the optical sensor, check voltage between optical sensor harness connector and ground.
*: Illuminate the optical sensor. The value may be less than the standard if brightness is weak.
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace the optical sensor.
4.CHECK OPTICAL SENSOR OPEN CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace harness.
5.CHECK OPTICAL SENSOR SHORT CIRCUIT
Check continuity between optical sensor harness connector and ground.
Is the inspection result normal? YES >> Replace BCM. Refer to BCS-75, "Removal and Installation" (with Intelligent Key system) or BCS- 135, "Removal and Installation" (without Intelligent Key system).
NO >> Repair or replace harness.
6.CHECK OPTICAL SENSOR GROUND OPEN CIRCUIT
Is the inspection result normal? YES >> Replace BCM. Refer to BCS-75, "Removal and Installation" (with Intelligent Key system) or BCS- 135, "Removal and Installation" (without Intelligent Key system).
NO >> Repair or replace harness.
7.CHECK OPTICAL SENSOR SIGNAL OPEN CIRCUIT
Is the inspection result normal? YES >> GO TO 8.
NO >> Repair or replace harness.
8.CHECK OPTICAL SENSOR SHORT CIRCUIT
Check continuity between optical sensor harness connector and ground.
Is the inspection result normal? YES >> Replace BCM. Refer to BCS-75, "Removal and Installation" (with Intelligent Key system) or BCS- 135, "Removal and Installation" (without Intelligent Key system).
NO >> Repair or replace harness.
HAZARD SWITCH
Component Function Check
1.CHECK HAZARD SWITCH SIGNAL BY CONSULT
CONSULT DATA MONITOR
Is the inspection result normal? YES >> Hazard switch circuit is normal.
NO >> Refer to EXL-91, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK HAZARD SWITCH SIGNAL INPUT
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK HAZARD SWITCH SIGNAL OPEN CIRCUIT
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK HAZARD SWITCH SIGNAL SHORT CIRCUIT
Check continuity between hazard switch harness connector and ground.
Is the inspection result normal? YES >> Replace BCM. Refer to BCS-75, "Removal and Installation" (with Intelligent Key) or BCS-135, "Removal and Installation" (without Intelligent Key).
NO >> Repair or replace harness.
4.CHECK HAZARD SWITCH GROUND OPEN CIRCUIT
Check continuity between hazard switch harness connector and ground.
Is the inspection result normal? YES >> Replace hazard switch. Refer to EXL-125, "Removal and Installation".
NO >> Repair or replace harness.
TURN SIGNAL LAMP CIRCUIT
Description
The BCM monitors inputs from the combination switch (lighting and turn signal switch) to determine when to activate the turn signals. The BCM outputs voltage direction to the left and right turn signals during turn signal operation or both during hazard warning operation. The BCM sends a turn signal indicator request to the combination meter via the CAN communication lines.
The BCM performs the fast flasher operation (fail-safe) if any bulb or harness of the turn signal lamp circuit is open.
NOTE: Turn signal lamp blinks at normal speed when using the hazard warning lamp.
Component Function Check
1.CHECK TURN SIGNAL LAMP
CONSULT
LH : Turn signal lamps (LH) ON
RH : Turn signal lamps (RH) ON
Off : Turn signal lamps OFF
Is the inspection result normal? YES >> Turn signal lamp circuit is normal.
NO >> Refer to EXL-93, "Diagnosis Procedure".
Diagnosis Procedure
Regarding Wiring Diagram information, refer to EXL-185, "Wiring Diagram".
1.CHECK TURN SIGNAL LAMP BULB
Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK? YES >> GO TO 2.
NO >> Replace the bulb.
2.CHECK TURN SIGNAL LAMP OUTPUT VOLTAGE
Are the inspection results normal? YES >> GO TO 5.
NO >> GO TO 3.
3.CHECK TURN SIGNAL LAMP CIRCUIT FOR OPEN
Are the inspection results normal? YES >> GO TO 4.
NO >> Repair or replace the harness or connectors.
4.CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Are the inspection results normal? YES >> Replace BCM. Refer to BCS-75, "Removal and Installation" (with Intelligent Key) or BCS-135, "Removal and Installation" (without Intelligent Key).
NO >> Repair or replace the harness or connectors.
5.CHECK TURN SIGNAL LAMP GROUND CIRCUIT
Are the inspection results normal? YES >> Replace the malfunctioning lamp.
NO >> Repair or replace the harness or connectors.
B121A FRONT FOG LAMP LH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B121A | FR FOG LAMP LH PWR SPLY CIRC [CIRC SHORT TO GROUND |
|
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B121A detected? YES >> Proceed to diagnosis procedure. Refer to EXL-96, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK FOG LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK FOG LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B1231 DAYTIME RUNNING LIGHT RH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B1231 | DTRL RH PWR SPLY CIRC [CIRC SHORT TO GRND] | When a short circuit to ground in the daytime running lamp circuit is detected. |
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B1231 detected? YES >> Proceed to diagnosis procedure. Refer to EXL-97, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B1256 FRONT FOG LAMP RH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B1256 | FR FOG LAMP RH PWR SPLY CIRC [CIRC SHORT TO GRND] | When a short circuit to ground is detected. |
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B1256 detected? YES >> Proceed to diagnosis procedure. Refer to EXL-98, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK FOG LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK FOG LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20CB DAYTIME RUNNING LIGHT LH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B02CB | DTRL LH PWR SPLY CIRC [CIRC SHORT TO GRND] | When a short circuit to ground is detected. |
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B02CB detected? YES >> Proceed to diagnosis procedure. Refer to EXL-99, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20CE HEADLAMP (HI) LH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B20CE | B20CE |
|
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B20CE detected? YES >> Proceed to diagnosis procedure. Refer to EXL-100, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK HEAD LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK HEAD LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20CF HEADLAMP (HI) RH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B20CF | HL (HI) RH PWR SPLY CIRC [CIRC SHORT TO GRND] |
|
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B20CF detected? YES >> Proceed to diagnosis procedure. Refer to EXL-101, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK HEAD LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK HEAD LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20D0 HEADLAMP (LO) LH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B20D0 | HI (LO) RH PWR SPLY CIRC [CIRC SHORT TO GRND] |
|
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B20D0 detected? YES >> Proceed to diagnosis procedure. Refer to EXL-102, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20D1 HEADLAMP (LO) RH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B20D1 | HL (LO) RH PWR SPLY CIRC [CIRC SHORT TO GRND] |
|
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B20D1 detected? YES >> Proceed to diagnosis procedure. Refer to EXL-103, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK FOG LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20D2 PARKING LAMP POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B20D2 | PARKING LAMP PWR SPLY CIRC [CIRC SHORT TO GROUND] | When a short to ground is detected in the parking lamp power supply circuit. |
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B20D2 detected? YES >> Proceed to diagnosis procedure. Refer to EXL-104, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK FRONT COMBINATION LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20D4 TAIL LAMP LH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B20D4 | TAIL LAMP LH PWR SPLY CIRC [CIRC SHORT TO GRND] |
|
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B20D4 detected? YES >> Proceed to diagnosis procedure. Refer to EXL-105, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK TAIL LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK TAIL LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
B20D5 TAIL LAMP RH POWER SUPPLY CIRCUIT
DTC Logic
DTC DETECTION LOGIC
DTC |
Display Item |
Malfunction detected condition |
Possible causes |
B20D5 | TAIL LAMP RH PWR SPLY CIRC [CIRC SHORT TO GRND] | When a short circuit to ground is detected in the tail lamp supply voltage circuit. |
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULT
With CONSULT.
Is DTC B20D5 detected? YES >> Proceed to diagnosis procedure. Refer to EXL-106, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK TAIL LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK TAIL LAMP SHORT CIRCUIT TO GROUND
Is the inspection result normal? YES >> Refer to GI-41, "Intermittent Incident".
NO >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation".
Symptom diagnosis
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work Flow
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic
Worksheet during the interview to document the facts and conditions when the
noise occurs and any
custome ...
Body component parts
Underbody Component Parts
Both sided anti-corrosive
precoated steel portions
High strength steel (HSS)
portions: 440 MPa
Both sided anti-corrosive
steel and HSS portions: 440 MPa
CAUTION:
If the high strength steel (ultra high strength steel) of this is broken,
replace by assem ...
Both doors mirror defogger don’t operate but rear window defogger operates
Diagnosis Procedure
Regarding Wiring Diagram information, refer to DEF-12, "Wiring Diagram".
1. CHECK DOOR MIRROR DEFOGGER FUSE
Check if the following fuse in fuse block (J/B) is blown.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse af ...