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Home >> Infiniti >> 2012 >> FX35 AWD V6-3.5L (VQ35HR) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> AV Branch Line Circuit >> CAN
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CAN




AV BRANCH LINE CIRCUIT

Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the ignition switch OFF.
2.Disconnect the battery cable from the negative terminal.
3.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

1.Disconnect the connector of AV control unit.
2.Check the resistance between the AV control unit harness connector terminals.
-Models with navigation system





-Models without navigation 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.
- Without navigation: Without Navigation
- Navigation: Navigation
Is the inspection result normal?
YES (Present error)-Replace the AV control unit. Refer to the following.
- Without navigation: Without Navigation
- Navigation: Navigation
YES (Past error)-Error was detected in the AV control unit branch line.
NO- Repair the power supply and the ground circuit.
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