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Nissan Sentra Service Manual: Power generation voltage variable control system operation inspection

Nissan Sentra Service Manual / Electrical & power control / Charging system / Dtc/circuit diagnosis / 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 battery inspection.

(When the charging rate of the battery is low, the response speed of the voltage change will become slow. This can cause an incorrect inspection.)

1.Check ecm (consult)

Perform ecm self-diagnosis with consult. Refer to ec-66, "consult function".

Self-diagnostic results content

No malfunction detected>> go to 2.

Malfunction detected>> check applicable parts, and repair or replace corresponding parts.

2.Check operation of power generation voltage variable control system

  1. Connect consult and start the engine.
  2. The selector lever is in “p” or “n” position and all of the electric loads and a/c, etc. Are turned off.
  3. Select “alternator duty” in “active test” of “engine”, and then check the value of “battery volt” monitor when duty value of “duty” is set to 40.0 %.

“Battery volt” 2 seconds after setting the duty value of “alternator duty” to 40.0 % : 12 - 13.6 V

  1. Check the value of “battery volt” monitor when duty value of “duty” is set to 80.0%.

“Battery volt” 20 seconds after setting the duty value of “alternator duty” to 80.0 % : +0.5 V or more against the value of “battery volt” monitor when duty value is 40.0 %

Is the inspection result normal? Yes >> inspection end.

No >> go to 3.

3.Check ipdm e/r (consult)

Perform ipdm e/r self-diagnosis with consult. Refer to pcs-10, "consult function (ipdm e/r)"

 (with intelligent key system) or pcs-38, "consult function (ipdm e/r)" (without intelligent key system).

Is the inspection result normal? No malfunction detected>> go to 4.

Malfunction detected>> check applicable parts, and repair or replace corresponding parts.

4.Check harness between generator and ipdm e/r

  1. Turn ignition switch off.
  2. Disconnect generator connector and ipdm e/r connector.
  3. Check continuity between generator harness connector and ipdm e/r harness connector.


  1. Check continuity between generator harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> replace ipdm e/r. Refer to pcs-30, "removal and installation".

No >> repair harness or connectors between ipdm e/r and generator.

Charging system preliminary inspection
Diagnosis Procedure 1.CHECK BATTERY TERMINALS CONNECTION Check if battery terminals are clean and tight. Is the inspection result normal? YES >> GO TO 2. NO >> Repair battery term ...

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 ...

Other materials:

Compression pressure
Inspection Warm up the engine to full operating temperature. Release fuel pressure. Refer to EC-143, "Work Procedure". Remove ignition coil and spark plug from each cylinder. Refer to EM-46, "Exploded View". Connect engine tachometer (not required in use of CONSULT). ...

Front wiper motor hi circuit
Component function check 1. Check front wiper hi operation Ipdm e/r auto active test Start ipdm e/r auto active test. Refer to ww-15, "diagnosis description" (with intelligent key system) or ww-19, "diagnosis description" (without intelligent key system). Check tha ...

Brakes
If the brakes do not operate properly, have the brakes checked by a NISSAN dealer. Self-adjusting brakes Your vehicle is equipped with self-adjusting brakes. The front (and rear– if so equipped) disc-type brakes self-adjust every time the brake pedal is applied. The rear drum-type brakes ...

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