Nissan Rogue (T33) 2021-Present Service Manual: P1603 Ecm

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / P1603 Ecm

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
P1603 00

CONTROL MODULE

(CONTROL MODULE) 		Diagnosis condition —
Signal (terminal) —
Threshold EEPROM (built-in microcomputer) system internal ECM does not function properly
Diagnosis delay time —

POSSIBLE CAUSE

ECM

FAIL-SAFE

Not applicable

DTC Confirmation Procedure

PRECONDITIONING

Perform the following procedure before performing DTC Confirmation Procedure.

  1. Turn ignition switch OFF and wait at least 10 seconds.

  2. Turn ignition switch ON.

  3. Turn ignition switch OFF and wait at least 10 seconds.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Start the engine and wait at least 10 seconds.

  2. Turn ignition switch OFF and wait at least 10 seconds.

  3. Repeat steps 1 and 2 for 4 times.

  4. Turn ignition switch ON.

  5. Erase DTC.

  6. Turn ignition switch OFF and wait at least 10 seconds.

  7. Start the engine and wait for 10 seconds.

  8. Check 1st trip DTC.

Is 1st trip DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

INSPECTION START

Check that the battery negative terminal is not disconnected during ignition switch ON.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

ERASE DTC

  1. Start the engine and let it idle at least 10 seconds.

  2. Turn ignition switch OFF.

  3. Repeat steps 1 and 2 for 4 times.

  4. Erase DTC.

  5. Turn ignition switch OFF and wait at least 10 seconds.

  6. Start the engine and let it idle for 10 seconds.

  7. Check 1st trip DTC.

Is DTC P1603 detected again?

YES>>

Replace ECM. Refer to ECM : Removal & Installation.

NO>>

INSPECTION END

CHECK ECM POWER SUPPLY AND GROUND CIRCUIT

Check ECM power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON.

  2. Erase DTC.

  3. Perform DTC confirmation procedure. Refer to DTC Description.

Is the DTC P1603 detected again?

YES>>

Replace ECM. Refer to ECM : Removal & Installation.

NO>>

INSPECTION END

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