Nissan Sentra Service Manual: 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:
Information voice commands
The following voice commands are available for
the information functions of the Navigation System:
Traffic
Fuel Prices
Stocks
Movie Listings
Current Weather
Weather Map
5 — day Forecast
6 — hour Forecast
For more information about these commands,
see the separate Navigatio ...
P1212 TCS Communication line
Description
This CAN communication line is used to control the smooth engine operation
during the TCS operation. Pulse
signals are exchanged between ECM and “ABS actuator and electric unit (control
unit)”.
Be sure to erase the malfunction information such as DTC not only for Ð²Ð‚Ñ ...
Symptom diagnosis
The sport mode indicator lamp does not turn on
Description
The sport mode indicator lamp does not turn on when the sport mode switch is
operated.
Diagnosis procedure
1.Perform combination meter on board diagnosis
Perform combination meter on board diagnosis. Refer to mwi-16, "descriptio ...
