Nissan Versa (N17): U12B1 Power supply voltage

Nissan Versa 2nd generation (N17) Service Manual / Driver information & multimedia / Audio, visual & navigation system (AV) / U12B1 Power supply voltage

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure

1.CHECK CHARGING SYSTEM

Check the vehicle charging system. Refer to CHG "Work Flow (With EXP-800 NI or GR8-1200 NI)" or CHG "Work Flow (Without EXP-800 NI or GR8-1200 NI)".

Is the inspection result normal?

YES >> Replace the AV control unit. Refer to AV "Removal and Installation".

NO >> Repair or replace the malfunctioning components.

U1310 AV CONTROL UNIT

DTC Logic

CONSULT Display DTC Detection Condition Possible Cause
CONTROL UNIT (AV) [U1310] Error during CAN controller hardware initialization (MCAN). Replace AV control unit if malfunction occurs constantly.

Refer to AV "Removal and Installation".

U12B0 Power supply voltage

DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK CHARGING SYSTEM Check the vehicle charging system. Refer to CHG "Work Flow (With EXP-800 NI or GR8-1200 NI)" or CHG-16, " ...

Power supply and ground circuit

AV CONTROL UNIT AV CONTROL UNIT : Diagnosis Procedure Regarding Wiring Diagram information, refer to AV "Wiring Diagram". 1.CHECK FUSE Check that the following fuses are not blown. Are ...

Other materials:

A/T Fluid cooler
Cleaning Whenever the A/T is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the radiator must be inspected and cleaned. Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can contaminate the newly serviced A/T or, i ...

Insufficient cooling
Description Symptom Insufficient cooling No cool air comes out. (Air flow volume is normal.) Diagnosis Procedure NOTE: Perform self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction result or DTC is detected, perform the corresponding diagnosis. 1.CHE ...

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