Nissan Altima (L32) 2007-2012 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 or N position (CVT models) or the clutch pedal is fully depressed (M/T models).
Diagnosis Procedure
CAUTION: Perform diagnosis under the condition that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1.CHECK “S” CONNECTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect starter motor connector F28.
3. Shift CVT selector lever to “P” or “N” position. (CVT models) Press and hold the clutch pedal fully with the control lever in neutral. (M/T models) 4. Check voltage between starter motor harness connector F28 terminal S and ground with the ignition in START.
Is battery voltage present? YES >> “S” circuit is OK. Further inspection necessary. Refer to STR-29, "Work Flow".
NO >> GO TO 2
2.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check the following terminals and connectors for damage, bent pins and loose connections.
- IPDM E/R harness connector F10
- Starter motor harness connector F28
Is the inspection result normal? YES >> GO TO 3 NO >> Repair the terminal and connector.
3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
- IPDM E/R connector F10
- Starter motor connector F28
2. Check continuity between starter motor harness connector F28 terminal S and IPDM E/R harness connector F10 terminal 80.
Is there proper continuity between the two pins? YES >> Further inspection necessary. Refer to STR-29, "Work Flow".
NO >> Repair the harness.
B terminal circuit
Description The “B” terminal is constantly supplied with battery power. Diagnosis Procedure CAUTION: Perform diagnosis under the condition that the engine cannot start by the following proce ...Starting system
Wiring Diagram - Coupe Wiring Diagram - Sedan ...Other materials:
ASCD Brake switch
Description
When the brake pedal is depressed, ASCD brake switch is turned OFF and stop
lamp switch is turned ON.
ECM detects the state of the brake pedal by those two types of input (ON/OFF
signal).
Refer to EC-1090, "System Diagram" for the ASCD function.
Component Function C ...
BCM branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the BCM for damage, bend and loose
connection (unit side and
connector side).
Is the inspec ...
B2616 ignition relay circuit
Description
BCM controls the various electrical components and simultaneously supplies
power according to the power
supply position.
BCM checks the power supply position internally.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. PERFORM DTC CONFIRMATION PROCEDURE
1. Turn i ...