Nissan Altima 2007-2012 Service Manual: Power supply and ground circuit (sedan)
AUDIO UNIT
Diagnosis Procedure
1.CHECK FUSES
Check that the following fuses are not blown.
Are the fuses OK? YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect audio unit connector M43.
2. Check voltage between the audio unit connector M43 and ground.
Are the voltage results as specified? YES >> GO TO 3
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
Inspect audio unit case ground.
Does case ground pass inspection? YES >> Inspection End.
NO >> Repair audio unit case ground.
Satellite radio tuner
Diagnosis Procedure 1.CHECK FUSES Check that the following fuses are not blown. Are the fuses OK? YES >> GO TO 2 NO >> If fuse is blown, be sure to eliminate cause of malfunct ...Satellite radio tuner
Diagnosis Procedure 1.CHECK FUSES Check that the following fuses are not blown. Are the fuses OK? YES >> GO TO 2 NO >> If fuse is blown, be sure to eliminate cause of malfunction be ...Other materials:
P0075, P0081 IVT control solenoid
valve
Description
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow via the intake valve timing control unit
or stops oil flow.
The longer pulse w ...
Vehicle security system
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
OPERATION FLOW
SETTING THE VEHICLE SECURITY SYSTEM
Initial Condition
• Ignition switch is in OFF position.
Disarmed Phase
• When doors or trunk is open, the vehicle security system is set in the
disarmed phase on the ass ...
P1564 ASCD Steering switch
Description
ASCD steering switch has variant values of electrical resistance for each
button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer to EC-603, "System Description" for the ASCD function.
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC ...