Nissan Altima 2007-2012 Service Manual: Component diagnosis

Function diagnosis
EPS SYSTEM System Diagram CONTROL DIAGRAM System Description • The EPS system controls the power steering solenoid valve through the power steering control unit. • The valve driving vol ...

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 conn ...

Other materials:

Rear window defogger relay
Description Power is supplied to the rear window defogger with BCM control. Component Function Check 1. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT Check that an operation noise of rear window defogger relay [located in fuse block (J/B)] can be heard when turning the rear window de ...

Front tweeter (coupe)
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 front tweeters using the audio signal circuits. Diagnosis Procedure 1.HARNESS CHECK 1. Disconnect BOSE speaker amp. connector B122 and suspe ...

ASCD Indicator
Description The ASCD operation status is indicated by two indicators, (CRUISE and SET on the information display) on the combination meter. CRUISE indicator is displayed to indicate that ASCD system is ready for operation when MAIN switch on ASCD steering switch is turned ON. SET indica ...