C. Replace PCM - PT Vehicles

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1. Disconnect the negative battery cable.

NOTE:
To enhance customer satisfaction, remember to reset the clock when you have completed the service procedure.





2. Disconnect the four (4) PCM electrical connectors and set the wiring harness aside (Figure 3).

3. Disconnect the two (2) wiring harness clips from the PCM bracket

4. Remove the four (4) PCM mounting bracket screws and then remove the PCM and mounting bracket assembly (Figure 3).

5. Remove the three (3) PCM bolts, then remove the PCM and discard it.

6. Install the new PCM onto the mounting bracket. Tighten the mounting bolts to 105 in-lbs (11.8 Nm).

7. Install the PCM and bracket assembly (Figure 3). Tighten the mounting bolts to 95 in-lbs (10.7 N.m).

8. Connect the four (4) PCM electrical connectors (Figure 3).

9. Attach the wiring harness clips to the PCM bracket.

10. Connect the negative battery cable.

11. Continue with Section E - PCM/Vehicle Data Set-up.
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When to See a Mechanic

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

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