Nissan Sentra Service Manual: 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 control module keep alive memory (KAM) error] |
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DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
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 and wait at least 1 second.
- Turn ignition switch OFF and wait at least 10 seconds.
- Repeat step 1 and 2 for 10 times.
- Turn ignition switch ON.
- Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Proceed to EC-346, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Perform trouble diagnosis for ECM power supply and ground circuit. Refer to EC-164, "Diagnosis Procedure".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-39, "Intermittent Incident".
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition switch ON.
- Erase DTC.
- Perform DTC confirmation procedure. Refer to EC-346, "DTC Logic".
Is the 1st trip DTC P0603 displayed again? YES >> Replace ECM. Refer to EC-485, "Removal and Installation".
NO >> INSPECTION END
P0524 Engine oil pressure
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0524
ENGINE OIL PRESSURE
(Engine oil ...
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
...
Other materials:
Trunk room lamp
Removal and Installation
Warning:
Do not touch bulb while it is lit or right after being turned off.
Burning may result.
Caution:
Do not touch glass surface of the bulb with bare hands or allow oil or
grease to get on it to prevent
damage to bulb.
Release the tab (b) to open the lens.
...
U1000 CAN Comm circuit
Description
CAN (Controller Area Network) is a serial communication system for real time
application. It is an on-vehicle
multiplex communication system with high data communication speed and excellent
error detection ability.
Many electronic control units are equipped into vehicles, and e ...
AM radio reception
AM signals, because of their low frequency, can
bend around objects and skip along the ground.
In addition, the signals can be bounced off the
ionosphere and bent back to earth. Because of
these characteristics, AM signals are also subject
to interference as they travel from transmitter
to r ...
