Nissan Sentra manuals

Nissan Sentra Service Manual: 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-9, "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?


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?


Is the inspection result normal? YES >> “B” terminal circuit is normal. Refer to CHG-14, "Work Flow (With EXP-800 NI or GR8-1200 NI)" or CHG-17, "Work Flow (Without EXP-800 NI or GR8-1200 NI)".

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

Power generation voltage variable control system operation inspection
Diagnosis Procedure Regarding wiring diagram information. Refer to chg-9, "wiring diagram". Caution: When performing this inspection, always use a charged battery that has completed the ...

L terminal circuit (open)
Description The “L” terminal circuit controls the charge warning lamp. The charge warning lamp turns ON when the ignition switch is set to ON or START. When the generator is providing su ...

Other materials:

Main power supply and ground circuit
Diagnosis Procedure 1.CHECK TCM POWER CIRCUIT (PART 1) Turn ignition switch OFF. Disconnect TCM connector. Check voltage between TCM harness connector terminals and ground. Is the inspection result normal? YES >> GO TO 2. NO >> GO TO 4. 2.CHECK TCM POWER CIRCUIT (PAR ...

Power supply and ground circuit
Av control unit Av control unit : diagnosis procedure Regarding wiring diagram information, refer to av-331, "wiring diagram". 1.Check fuse Check that the following fuses are not blown. Are the fuses blown? Yes >> replace the blown fuse after repairing the affected circuit. ...

Parking, license plate and tail lamps are not turned on
Description The parking, license plate and tail lamps do not turn on in with any lighting switch setting. Diagnosis procedure 1.Combination switch (lighting and turn signal switch) inspection Check the combination switch (lighting and turn signal switch). Refer to BCS-72, "Symptom Table ...

© 2014-2025 Copyright www.nisentra.com