Nissan Sentra Service Manual: P0604 ECM

Nissan Sentra Service Manual / Engine / Engine control system / Dtc/circuit diagnosis / P0604 ECM

DTC Logic

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detecting condition	Possible cause
P0604	ECM [Internal control module random access memory (RAM) error]	Malfunction in the internal RAM of ECM.	ECM

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

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

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition switch ON.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON (engine stopped) and wait least 20 minutes.

CAUTION:

Never start engine during this procedure.

Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-347, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON.
Erase DTC.
Perform DTC confirmation procedure. Refer to EC-347, "DTC Logic".

Is the 1st trip DTC P0604 displayed again? YES >> Replace ECM. Refer to EC-485, "Removal and Installation".

NO >> INSPECTION END

P0603 ECM

DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P0603 ECM BACK UP CIRCUIT [Internal co ...

P0605 ECM

DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P0605 ECM [Internal control module ...

Other materials:

Service data and specifications (SDS)
Road Wheel Tire Air Pressure M/T - CVT MODELS CVT MODELS ...

Key interlock cable
Exploded View Shift selector assembly Clip Key interlock cable Clip Key cylinder Removal and Installation REMOVAL CAUTION: Always apply the parking brake before performing removal and installation. Remove the steering column cover, and the instrument lower panel LH. R ...

Front drive shaft boot
Exploded View (LH) Circular clip Dust shield Slide joint housing Snap ring Spider assembly Boot band Boot Shaft Damper band Dynamic damper Circular clip Joint sub-assembly Wheel side (RH) 6M/T Joint sub-assembly Circular clip Boot band Boot Shaft Dam ...