Nissan Altima (L32) 2007-2012 Service Manual: Power supply and ground circuit
Description
• EPS system functions by ignition power supply.
Diagnosis Procedure
1.CHECK POWER SUPPLY
1. Turn the ignition switch OFF.
2. Disconnect power steering control unit harness connector.
3. Check voltage between power steering control unit harness connector M59 terminal 3 and ground.
4. Turn the ignition switch ON.
CAUTION: Never start the engine.
5. Check voltage between power steering control unit harness connector M59 terminal 3 and ground.
Is the inspection result normal? YES >> GO TO 2.
NO >> Check the following. If any items are damaged, repair or replace damaged parts.
• 10A fuses (#3) open - Harness for short or open between ignition switch and power steering control unit harness connector No. 3 terminal.
- Ignition switch.
2.CHECK GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Check continuity between power steering control unit harness connector M59 terminal 6 and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair open circuit or short to power in harness or connectors.
3.CHECK TERMINALS AND HARNESS CONNECTORS
Check power steering control unit pin terminals for damage or loose connection with harness connector.
Is the inspection result normal? YES >> Inspection End
NO >> Repair or replace damaged parts.
Power steering solenoid valve
Description • Power steering solenoid valve controls the power steering oil pressure in the gear housing assembly. Diagnosis Procedure 1.CHECK POWER STEERING SOLENOID VALVE SIGNAL 1. Start e ...Other materials:
Signal buffer system
System Diagram
System Description
• IPDM E/R reads the status of the oil pressure switch and transmits the oil
pressure switch signal to BCM via
CAN communication. Refer to PCS-11, "System Description".
• IPDM E/R receives the rear window defogger status signal from BCM via C ...
Fender protector
Removal and Installation
1. Fender protector
2. Fender protector side cover
A. J-clips
B. Clips
C. Center mudguard screw
a. Sheet metal nut
REMOVAL
1. Remove the engine under cover. Refer to EXT-13, "Removal and
Installation".
2. Remove the screw from center mudguard.
3 ...
B210b starter control relay
Description
Starter control relay, integrated in IPDM E/R, permits the starter relay
operation when in N or P position and
the steering is locked or unlocked. It is installed in parallel with the starter
relay.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B210B is displayed with DTC U1 ...