Nissan Versa

 Sedan Service Manual

Electrical & power control » Charging system (CHG)
B Terminal circuit

Description

"B" terminal circuit supplies power to charge the battery and to operate the vehicles electrical system.

Diagnosis Procedure

Regarding Wiring Diagram information. Refer to CHG "Wiring Diagram".

1.CHECK "B" TERMINAL CONNECTION

1. Turn ignition switch OFF.

2. Check if "B" terminal is clean and tight.

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair terminal "B" connection. Confirm repair by performing complete Charging system test using the EXP-800 NI or GR8-1200 NI (if available). Refer to applicable Instruction Manual for proper testing procedures.

2.CHECK "B" TERMINAL CIRCUIT

Check voltage between generator "B" terminal and ground.

Is the inspection result normal?

YES >> GO TO 3.

NO >> Check harness for open between generator and fusible link.

3.CHECK "B" TERMINAL CONNECTION (VOLTAGE DROP TEST)

1. Start engine, then engine running at idle and warm.

2. Check voltage between battery positive terminal and generator connector "B" terminal.

Is the inspection result normal?

YES >> "B" terminal circuit is normal. 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)".

NO >> Check harness between battery and generator for continuity.

Precautions

System

Diagnosis and repair workflow

Charging system preliminary inspection

Power generation voltage variable control system operation inspection

B Terminal circuit

L Terminal circuit (open)

L Terminal circuit (short)

S Terminal circuit

Generator