2012 Mazda CX-7 FWD L4-2.5LFACTORY OEM SERVICE PROCEDURE

Transmission Position Sensor/Switch: Testing and Inspection





TRANSAXLE RANGE (TR) SWITCH INSPECTION [FS5A-EL]

CAUTION:
- Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.

Operation Inspection

1. Verify that the starter operates only when the ignition switch is turned to the START position with the selector lever in P or N position.

2. Verify that the back-up lights illuminate when selected to R position with the ignition switch at the ON position.

3. Verify that the positions of the selector lever and the selector indicator light are aligned.

- If there is any malfunction, adjust the TR switch. Adjustments

On-Vehicle Inspection

1. Disconnect the TR switch connector.
a. Disconnect the negative battery cable.

b. Remove the air cleaner component. Service and Repair

c. Disconnect the TR switch connector.

Factory service manual diagram





2. Inspect continuity as indicated in the table.

Factory service manual diagram





Factory service manual diagram





- If there is any malfunction, adjust the TR switch.
If problem remains, replace the TR switch. Service and Repair

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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