Nissan Sentra Service Manual: S connector circuit
Description
The starter motor magnetic switch is supplied with power when the ignition switch is turned to the START position while the selector lever is in the P (Park) or N (Neutral) position (CVT Models) or the clutch pedal is depressed (M/T Models).
Diagnosis Procedure
Regarding Wiring Diagram information, refer to STR-10, "Wiring Diagram" (with Intellignet Key system) or STR-15, "Wiring Diagram" (without Intelligent Key system).
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
- Remove fuel pump fuse.
- Crank or start the engine (where possible) until the fuel pressure is released.
1.CHECK “S” CONNECTOR CIRCUIT
- Turn ignition switch OFF.
- Disconnect starter motor connector.
- Shift selector lever to “P” (Park) or “N” (Neutral) position (CVT Models) or the clutch pedal is depressed (M/T Models).
- Check voltage between starter motor harness connector F28 and ground.
Is the inspection result normal? YES >> “S” circuit is OK. Further inspection is necessary. Refer to STR-20, "Work Flow (With GR8-1200 NI)" or STR-24, "Work Flow (Without GR8-1200 NI)".
NO >> GO TO 2.
2.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
- Disconnect IPDM E/R connector.
- Check continuity between starter motor harness connector F28 and the IPDM E/R harness connector E44.
Is the inspection result normal? YES >> Further inspection is necessary. Refer to STR-20, "Work Flow (With GR8-1200 NI)" or STR-24, "Work Flow (Without GR8-1200 NI)".
NO >> Repair or replace the harness or connectors.
B terminal circuit
Description
Terminal “B” is constantly supplied with battery power.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to STR-10, "Wiring Diagram" (with
Intellig ...
Symptom diagnosis
Starting system
Symptom table
Symptom
Reference
No normal cranking
Refer to STR-20, "Work Flow (With GR8-1200 NI)" or
STR-24, "Work Flow (Without GR8-1200 NI ...
Other materials:
Brake fluid
Drain and Refill
CAUTION:
Do not spill or splash brake fluid on painted surfaces. Brake
fluid may damage paint. If brake fluid is
splashed on painted areas, wash it away with water immediately.
Prior to repair, turn the ignition switch OFF, disconnect the ABS
actuator and electric uni ...
Component parts
Component Parts Location
ABS actuator and electric unit (control
unit)
IPDM E/R
Brake fluid level switch
Front wheel sensor LH (RH similar)
Rear wheel sensor LH (RH similar)
VDC OFF switch
Steering angle sensor
(view with steering wheel removed)
Sto ...
Under cover
Front under cover
Front under cover : removal and installation
REMOVAL
Remove front side of front fender protector (LH/RH). Refer to EXT-28,
"FENDER PROTECTOR : Removal
and Installation - Front Fender Protector".
Remove engine under cover. EXT-31, "ENGINE UNDER COVER : Re ...
