Nissan Sentra manuals

Nissan Sentra Service Manual: Tcm 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 following terminals and connectors 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 tcm.
  2. Check the resistance between the TCM harness connector terminals.

Is the measurement value within the specification?


Is the measurement value within the specification? Yes >> go to 3.

No >> repair the tcm branch line.

3.Check power supply and ground circuit

Check the power supply and the ground circuit of the tcm. Refer to tm-234, "diagnosis procedure".

Is the inspection result normal? Yes (present error)>>replace the tcm. Refer to the tm-263, "removal and installation".

Yes (past error)>>error was detected in the tcm branch line.

No >> repair the power supply and the ground circuit.

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Other materials:

Steering wheel switch for audio control (if so equipped)
Tuning switch Power on and SOURCE select switch Volume control button The audio system can be operated using the controls on the steering wheel. POWER on switch With the ignition switch in the ACC or ON position, push the SOURCE switch to turn the audio system on. SOURCE select s ...

Control Units and Electrical Parts
PRECAUTIONS Never reverse polarity of battery terminals. Install only parts specified for a vehicle. Before replacing the control unit, check the input and output and functions of the component parts. Do not apply excessive force when disconnecting a connector. Do not apply exce ...

Starting the engine
Apply the parking brake. CVT model: Move the shift lever to P (Park) or N (Neutral). P (Park) is recommended. The shift lever cannot be moved out of P (Park) and into any of the other gear positions if the ignition switch is turned to the OFF position or if the key is removed from th ...

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