Nissan Sentra manuals

Nissan Sentra Service Manual: L terminal circuit (open)

Nissan Sentra Service Manual / Electrical & power control / Charging system / Dtc/circuit diagnosis / 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 sufficient voltage with the engine running, the charge warning lamp turns OFF. If the charge warning lamp illuminates with the engine running, a malfunction is indicated.

Diagnosis procedure

Regarding Wiring Diagram information. Refer to CHG-9, "Wiring Diagram".Рњ

1.Check “l” terminal connection

  1. Turn ignition switch off.
  2. Check if “l” terminal is clean and tight.

Is the inspection result normal? Yes >> go to 2.

No >> repair “l” terminal connection. Confirm repair by performing complete charging system test using exp-800 ni or gr8-1200 ni (if available). Refer to applicable instruction manual for proper testing procedures.

2.Check “l” terminal circuit (open)

  1. Disconnect the generator connector.
  2. Apply ground to generator harness connector terminal.
  3. Check condition of the charge warning lamp with the ignition switch in the on position.

Does it illuminate?


Does it illuminate? YES >> “L” 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 >> GO TO 3.

3.Check harness continuity (open circuit)

  1. Disconnect the battery cable from the negative terminal.
  2. Disconnect the combination meter connector.
  3. Check continuity between generator harness connector and combination meter harness connector.

Is the inspection result normal?


Is the inspection result normal? Yes >> go to 4.

No >> repair or replace the harness or connectors.

4.Check power supply circuit

  1. Connect the battery cable to the negative terminal.
  2. Check voltage between combination meter harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> replace the combination meter. Refer to mwi-77, "removal and installation".

No >> repair or replace the harness or connectors.

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 c ...

L terminal circuit (short)
Description The terminal “l” 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 s ...

Other materials:

P0131 A/F Sensor 1
DTC Logic DTC DETECTION LOGIC To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately low. DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P01 ...

U0140 Lost communication (BCM)
DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms [Trouble diagnosis content] DTC detection condition Possible causes U0140 LOST COMM (BCM) [Lost Communication With Body Control Module] When the ignition switch is ON, TCM is unable to receive the CAN ...

The braking distance is long
Diagnosis Procedure CAUTION: The stopping distance on slippery road surfaces might be longer with the ABS operating than when the ABS is not operating. 1.CHECK ABS FUNCTION Turn ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connector to deactivate ...

© 2014-2025 Copyright www.nisentra.com