Nissan Altima 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-3, "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-3, "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:
Precaution
Supplemental Restraint System (SRS) "AIR BAG"
and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT
PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front ...
Tumble control valve control
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*: ECM determines the start signal status by the signals of engine speed and
battery voltage.
SYSTEM DESCRIPTION
Tumble control valve has a valve portion in the intake passage of each
cylinder.
While idling and during low ...
Subwoofer (sedan)
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio
signals before sending them to the subwoofers using the audio signal circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B122 and suspect
rea ...