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:

ECU diagnosis information
A/C AUTO AMP Reference Value VALUES ON THE DIAGNOSIS TOOL TERMINAL LAYOUT PHYSICAL VALUES DTC Inspection Priority Chart If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart. DTC Index *: Perform self ...

Removal and installation
Hood Hood assembly Hood assembly : exploded view Hood hinge (LH/RH) Hood assembly Hood bumper rubber Hood seal Hood insulator Hood support rod Hood support rod clamp Clip Hood assembly : removal and installation CAUTION: Use two people when removing or installing h ...

Control buttons
The control buttons for the Bluetooth® Hands-Free Phone System are located on the steering wheel. PHONE/SEND Press the   button to initiate a VR session or answer an incoming call. You can also use the button to interrupt the system feedback and give a command at once. See “L ...

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