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:

4-speed automatic transmission fluid (ATF) (if so equipped)
When checking or replacement of automatic transmission fluid is required, it is recommended that you visit a NISSAN dealer for servicing. WARNING When the engine is running, keep hands, jewelry and clothing away from any moving parts such as the cooling fan and drive belts Automatic t ...

Power steering fluid
Check the fluid level in the reservoir. The fluid level should be checked when the fluid is cold at fluid temperatures of 32 to 86ºF (0 to 30ºC). The fluid level can be checked with the level gauge which is attached to the cap. To check the fluid level, remove the cap. The fluid ...

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