DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| U1A03 |
SIM CARD (SIM card) |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | — | ||
| Threshold | — | ||
| Diagnosis delay time | 1 second or more | ||
POSSIBLE CAUSE
TCU
FAIL-SAFE
Telematics system function stops
Call the NissanConnect Data Center and inform them that the telematics system cannot be connected.
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
Ignition switch ON.
Erase DTC.
Select “Self Diagnostic Result” mode of “TELEMATICS”.
Check DTC.
Is DTC U1A03 detected?
YES>>Proceed to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
CONSULT
Ignition switch ON.
Erase DTC.
Select “Self Diagnostic Result” mode of “TELEMATICS”.
Check DTC.
Is DTC U1A03 detected?
YES>>Replace TCU. Refer to Removal and Installation.
NO>>Inspection End.
U1000 Can Comm Circuit
U1a04 Vin Unfinished
The autolight system allows the headlights to turn on and off automatically. The autolight system can:
Turn on the headlights, front parking, tail, license plate and instrument panel lights automatically when it is dark. Turn off all the lights (except daylight running lights) when it is light. Keep all the lights on for a period of time after you place the ignition switch in the OFF position and all doors are closed.