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.

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 ...

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:

Rear bumper
Exploded view Rear bumper side bracket (LH) Rear bumper reinforcement Rear bumper energy absorber Rear bumper fascia reflector (LH) Rear bumper fascia reflector (RH) Rear bumper fascia Rear bumper side bracket (RH) Pawl Removal and installation CAUTION: Bumper fascia is ma ...

DTC/Circuit diagnosis
U0073 COMMUNICATION BUS A OFF DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes U0073 COMM BUS A OFF (Control Module Communication Bus A Off) TCM communication blockage lasts for 2 sec ...

Refrigerant
Description CONNECTION OF SERVICE TOOLS AND EQUIPMENT Shut-off valve A/C service valve Recovery/recycling/recharging equipment Refrigerant container (HFC-134a) Weight scale (J-39650) Vacuum pump (J-39649) Manifold gauge set (J-39183) Preferred (best) method Alternativ ...

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