Nissan Sentra manuals

Nissan Sentra Service 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.

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 hac-83, "a/c auto amp. : Diagnosis procedure".

Is the inspection result normal? Yes (present error)>>replace the a/c auto amp. Refer to hac-105, "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.

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 dama ...

BCM  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 bcm for damage, bend and ...

Other materials:

Periodic maintenance
Road wheel Inspection ALUMINUM WHEEL Check tires for wear and improper inflation. Check wheels for deformation, cracks and other damage. If deformed, remove wheel and check wheel runout. Remove tire from aluminum wheel and mount wheel on a balancer machine. Set dial indicator as ...

Trunk lid
Trunk lid assembly Trunk lid assembly : exploded view Trunk lid hinge LH/RH Torsion bar LH/RH Torsion bar clips Trunk lid finisher (if equipped) Emergency release handle Emergency release handle clip Emergency release handle cable Trunk lid lock Trunk lid bumpers License lam ...

System description
Component parts Component parts location Ipdm e/r System Relay control system Relay control system : system diagram Relay control system : system description Description IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input ...

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