Nissan Sentra Service Manual: Av branch line circuit
Diagnosis Procedure
1.Check connector
- Turn the ignition switch off.
- Disconnect the battery cable from the negative terminal.
- Check the terminals and connectors of the av control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness for open circuit
- Disconnect the connector of av control unit.
- Check the resistance between the av control unit harness connector terminals.
- With navigation system without BOSE audio system
- With navigation system and bose audio system
Is the measurement value within the specification? Yes >> go to 3.
No >> repair the av control unit branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the av control unit. Refer to the following.
- With navigation system without bose audio system: refer to av-270, "av control unit : diagnosis procedure".
- With navigation system and bose audio system: refer to av-370, "av control unit : diagnosis procedure".
Is the inspection result normal? Yes (present error)>>replace the av control unit. Refer to the following.
- With navigation system without bose audio system: refer to av-298, "removal and installation".
- With navigation system and bose audio system: refer to av-406, "removal and installation".
Yes (past error)>>error was detected in the av control unit branch line.
No >> repair the power supply and the ground circuit.
Strg branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the steering angle sensor fo ...
Hvac branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the a/c auto amp. For damage ...
Other materials:
Strg branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the steering angle sensor for
damage, bend and loose connection
(unit side and connector side).
Is the inspection result ...
Heater and air conditioner (automatic) (if so equipped)
Temperature control buttons (driver’s
side)
(front defroster) button
(rear window defroster)
button
Display screen
MODE (manual air flow control) button
Fresh air intake button
Air recirculation button
Temperature control buttons (passenger’s
side)
DUAL button
...
Moonroof unit assembly
Inspection
WIND DEFLECTOR
Open glass lid fully
Visually check for proper installation, damaged/deteriorated components,
or foreign objects within mechanism.
Correct as required for smooth operation.
Check for grease at the wind deflector arm (1) and pivot areas. If
necessary, apply ...
