Nissan Sentra manuals

Nissan Sentra Service Manual: P1652 Starter motor system comm

Description

ECM controls ON/OFF state of the starter relay, according to the engine and vehicle condition. ECM transmits a control signal to IPDM E/R via BCM by CAN communication.

Under normal conditions, ECM controls and maintains the starter relay in OFF state during following condition:

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:

DTC No.

CONSULT screen terms (Trouble diagnosis content)

DTC detecting condition

Possible cause

P1652 STR MTR SYS COMM (Starter motor system communication) ECM detects malfunction in starter motor drive circuit of the IPDM E/R. IPDM E/R

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. Start the engine and wait at least 5 minutes.
  3. Repeat step 1 and 2 for 20 times.
  4. Check DTC.

Is DTC detected? YES >> Proceed to EC-404, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK SELF-DIAGNOSTIC RESULT IN BCM

Check self-diagnostic result in BCM. With CONSULT


Check self-diagnostic result in BCM.

Are any DTC detected? YES >> Check the DTC. Refer to BCS-49, "DTC Index" (with intelligent key), BCS-109, "DTC Index" (without intelligent key).

NO >> GO TO 2.

2.CHECK SELF-DIAGNOSTIC RESULT IN IPDM E/R

Check self-diagnostic result in IPDM E/R. With CONSULT


Check self-diagnostic result in IPDM E/R.

Are any DTC detected? YES >> Check the DTC. Refer to PCS-20, "DTC Index" (with intelligent key), PCS-48, "DTC Index" (without intelligent key).

NO >> GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE

  1. Erase DTC.
  2. Perform DTC confirmation procedure again. Refer to EC-404, "DTC Logic".
  3. Check DTC.

Is the P1652 displayed again? YES >> GO TO 4.

NO >> INSPECTION END

4.CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to GI-39, "Intermittent Incident".

Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-58, "Removal and Installation".

NG >> Repair or replace error-detected parts.

P1651 Starter motor relay
Description ECM controls ON/OFF state of the starter relay, according to the engine and vehicle condition. ECM transmits a control signal to IPDM E/R by CAN communication. Under normal conditio ...

P1715 Input speed sensor
Description ECM receives input speed sensor signal from TCM through CAN communication line. ECM uses this signal for engine control. DTC Logic DTC DETECTION LOGIC NOTE: If DTC P1715 is disp ...

Other materials:

Precaution for Seat Belt Service
CAUTION: Before removing the seat belt pre-tensioner assembly, turn the ignition switch OFF, disconnect both battery terminals and wait at least three minutes. For approximately three minutes after the battery terminals have been removed, it is still possible for the air bag and seat ...

Periodic maintenance
ENGINE COOLANT System Inspection WARNING: Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pr ...

Rear disc brake
Brake Burnishing CAUTION: Burnish contact surfaces between brake pads and disc rotor according to the following procedure after refinishing the disc rotor, replacing brake pads or if a soft pedal occurs at very low mileage. Be careful of vehicle speed. Brakes do not operate firmly/sec ...

В© 2014-2024 Copyright www.nisentra.com