Nissan Sentra Service Manual: P0863 TCM Communication
DTC Logic
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | Possible causes |
| P0863 | TCM COMMUNICATION (TCM Communication Circuit) | An error is detected at the initial CAN diagnosis of TCM. | TCM |
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
- Turn ignition switch ON.
- Check the DTC.
Is “P0863” detected? YES >> Go to TM-198, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK INTERMITTENT INCIDNT
Refer to GI-39, "Intermittent Incident".
Is the inspection result normal? YES >> Replace the TCM. Refer to TM-263, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.
P0890 TCM
DTC Logic
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | Possible causes |
| P0890 | TCM (Transmission Control Module Power Relay Sense Circuit Low) | The battery voltage supplied to the TCM is
less than 8.4 V continuously for 200 msec or
more under the following diagnosis condition: Diagnosis condition
|
|
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
- Start the engine and wait for 5 seconds or more.
- Check the DTC.
Is “P0890” detected? YES >> Go to TM-199, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK TCM POWER SUPPLY (BACK-UP) CIRCUIT
- Turn ignition switch OFF.
- Disconnect TCM connector.
- Check voltage between TCM harness connector terminals and ground.
Is the inspection
result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK INTERMITTENT INCIDENT
Refer to GI-39, "Intermittent Incident".
Is the inspection result normal? YES >> Replace the TCM. Refer to TM-263, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.
3.DETECT MALFUNCTIONING ITEMS
Check the following items:
- Open or short circuit of harness between battery positive terminal and
TCM connector terminals 45 and 46.
Refer to PG-8, "Wiring Diagram — Battery Power Supply —"
- 10A fuse (No.25, fuse and fusible link block). Refer to PG-48, "Terminal Arrangement".
- 10A fuse (No.28, fuse and fusible link block). Refer to PG-48, "Terminal Arrangement".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace malfunctioning parts.
P0846 Transmission fluid pressure SEN/SW B
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
P0846
TRANSMISSION FLUID
PRESSURE SEN/SW ...
P0962 Pressure control solenoid A
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
P0962
PRESSURE CONTROL SOLENOID
A
(Pre ...
Other materials:
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Commercial Service Tool
...
U1010 Control unit (CAN)
Description
Initial diagnosis of ABS actuator and electric unit (control
unit)
DTC Logic
DTC DETECTION LOGIC
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
U1010
CONTROL UNIT (CAN)
When detecting error during the initial diagnosis
...
Seat belt warning system
Seat Belt Warning System Does Not Function
1.SEAT BELT WARNING LIGHT
Turn ignition switch ON.
Does the seat belt warning lamp come ON?
YES >> GO TO 2.
NO >> • Check 10A fuse [No. 8, located in the fuse block (J/B)].
Check seat belt buckle switch (driver seat)
Check ha ...
