Nissan Juke Service and Repair Manual : HVAC 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 A/C auto amp. 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 A/C auto amp.

2. Check the resistance between the A/C auto amp. harness connector terminals.

- 4WD models

- 2WD models


- 2WD models

Is the measurement value within the specification?


Is the measurement value within the specification? YES >> GO TO 3.

NO >> Repair the A/C auto amp. branch line.

3.CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.

• 4WD models: HAC-73, "A/C AUTO AMP. : Diagnosis Procedure" • 2WD models: HAC-162, "A/C AUTO AMP. : Diagnosis Procedure"

Is the inspection result normal? YES (Present error)>>Replace the A/C auto amp. Refer to the following.

• 4WD models: HAC-91, "Removal and Installation" • 2WD models: HAC-188, "Removal and Installation"

YES (Past error)>>Error was detected in the A/C auto amp. branch line.

NO >> Repair the power supply and the ground circuit.

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