B Terminal Circuit

B TERMINAL CIRCUIT

Description

The terminal "1" (B) circuit supplies power to charge the battery and operate the vehicles electrical system.


Diagnosis Procedure

Regarding Wiring Diagram information, Electrical Diagrams.

1. CHECK TERMINAL ""1" CONNECTION

1.Turn ignition switch OFF.
2.Verify terminal "1" is clean and tight.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair terminal "1" connection. Confirm repair by performing complete Starting/Charging system test. Refer to Multitasking Battery Diagnostic instruction manual.

2. CHECK TERMINAL ""1" CIRCUIT

Check voltage between generator connector F2 terminal 1 and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Check harness for open between generator and fusible link.

3. CHECK TERMINAL "1" CONNECTION (VOLTAGE DROP TEST)

1.Start engine.
2.Bring engine to normal operating temperature and run at idle speed.
3.Check voltage between battery positive terminal and generator connector F2 terminal 1.





Is the inspection result normal?
YES- Terminal "1" circuit is normal. Work Flow.
NO- Check harness between battery and generator for high resistance.