Nissan Juke Service and Repair Manual : P1652 starter motor system COMM

Description

ECM controls ON/OFF state of the starter relay, according to the engine and vehicle condition. Models with no Intelligent Key System transmit a control signal directly to IPDM E/R. On the other hand, models with the Intelligent Key System transmit a control signal to IPDM E/R by way of BCM via CAN communication.

Under normal conditions, ECM controls and maintains the starter relay in OFF state during engine running or “D” position.

When detecting a decrease in engine speed due to rapid deceleration or heavy load condition, ECM controls and reactivates the starter relay.

IPDM E/R detects a control state of starter relay and starter control relay and transmits a feedback signal to ECM via CAN communication.

DTC Logic

DTC DETECTION LOGIC

NOTE

:
• If DTC P1650 is displayed with DTC U1001, perform the trouble diagnosis for DTC U1001. Refer to EC-161, "DTC Logic".

• If DTC P1650 is displayed with DTC P0607, perform the trouble diagnosis for DTC P0607. Refer to EC-304, "DTC Logic".

• If DTC P1650 is displayed with B209F or B20A0 of IPDM E/R, perform the trouble diagnosis for B209F or B20A0. Refer to SEC-134, "DTC Logic" or SEC-136, "DTC Logic".

• If DTC P1650 is displayed with B26F9 or B26FA of BCM, perform the trouble diagnosis for B209F or B20A0.

Refer to SEC-128, "DTC Logic" or SEC-130, "DTC Logic".

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

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.

2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION

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

2. Turn ignition switch ON and wait at least 5 minutes.

3. Check DTC.

Is DTC detected? YES >> Proceed to EC-372, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.INSPECTION START

1. Erase DTC.

2. Perform DTC confirmation procedure. Refer to EC-372, "DTC Logic".

3. Check DTC.

Is the P1652 displayed again?

YES >> GO TO 2.

NO >> INSPECTION END

2.CHECK INTERMITTENT INCIDENT

Perform GI-42, "Intermittent Incident".

Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation".

NG >> Repair or replace error-detected parts.

    5. Also check harness for short to ground to power. Is the inspection result normal? YES >> GO TO 7. NO >> Repair or replace error-detected parts. 7.CHECK INTERMITTENT INCIDENT ...

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