Nissan Sentra manuals

Nissan Sentra Service Manual: Electrical load signal

Description

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred via the CAN communication line.

Component Function Check

1.CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

With CONSULT


  1. Turn ignition switch ON.
  2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
  3. Select “LOAD SIGNAL” and check indication as per the following conditions.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 2.

NO >> Proceed to EC-461, "Diagnosis Procedure".

2.CHECK LIGHTING SWITCH FUNCTION

Check “LOAD SIGNAL” indication as per the following conditions. With CONSULT


Check “LOAD SIGNAL” indication as per the following conditions.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> Proceed to EC-461, "Diagnosis Procedure".

3.CHECK HEATER FAN CONTROL SWITCH FUNCTION

Select “HEATER FAN SW” and check indication as per the following conditions. With CONSULT


Select “HEATER FAN SW” and check indication as per the following conditions.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Proceed to EC-461, "Diagnosis Procedure".

Diagnosis Procedure

1.INSPECTION START

Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to EC-461, "Component Function Check".

Which circuit is related to the incident? Rear window defogger>>GO TO 2.

Headlamp>>GO TO 3.

Heater fan>>GO TO 4.

2.CHECK REAR WINDOW DEFOGGER SYSTEM

Check the rear window defogger system. Refer to DEF-27, "Work Flow".

>> INSPECTION END

3.CHECK HEADLAMP SYSTEM

Check the headlamp system. Refer to EXL-85, "Work Flow".

>> INSPECTION END

4.CHECK HEATER FAN CONTROL SYSTEM

Check the heater fan control system. Refer to HA-15, "Workflow".

>> INSPECTION END

Ignition signal
Component Function Check 1.INSPECTION START Turn ignition switch OFF. Start engine. Does the engine start? YES >> GO TO 2. NO >> Proceed to EC-456, "Diagnosis Procedure& ...

Cooling fan
Component Function Check 1.CHECK COOLING FAN FUNCTION With CONSULT Turn ignition switch ON. Perform “FAN” in “ACTIVE TEST” mode of “ENGINE” using CONSULT Check ...

Other materials:

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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 Turn ignition switc ...

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