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:
Refer to SEC-112, "DTC Logic" or SEC-114, "DTC Logic".
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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION
Is DTC detected? YES >> Proceed to EC-404, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.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
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
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.
Diagnosis system (BCM) (with intelligent key system)
Common item
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
Direct Diagnostic Mode
Description
ECU identification
The BCM part number is displayed.
Self Diagnostic Result
...
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Removal
Remove instrument finisher b. Refer to ip-14, "exploded view".
Using a suitable tool release the pawls on either side and remove the
NATS antenna amp. from the pushbutton
ignition switch.
Installation
Installation is in the ...
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When towing your vehicle, all State (Provincial in
Canada) and local regulations for towing must be
followed. Incorrect towing equipment could damage
your vehicle. Towing instructions are available
from a NISSAN dealer. Local service operators
are generally familiar with the applicable laws
an ...