Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Additional Service When Replacing TCM: Procedure
- LOAD CALIBRATION DATA
- Shift the selector lever to the "P" position.
- Turn ignition switch ON.
- Check that "P" is displayed on shift position indicator on combination meter.NOTE: Displayed approximately 1 - 2 seconds after the selector lever is moved to the "P" position.
Does the shift position indicator display "P"?
YES: GO TO 3.
NO: GO TO 2.
- DETECT MALFUNCTIONING ITEM
Check the following items:
- Harness between the TCM and the ROM assembly inside the transaxle assembly is open or shorted.
- Disconnected, loose, bent, collapsed, or otherwise abnormal connector housing terminals
Is the inspection result normal?
YES: GO TO 1.
NO: Repair or replace the malfunctioning parts.
- STORE CALIBRATION DATA
- Turn ignition switch OFF and wait for 5 seconds.
- Turn ignition switch ON.
Does the shift position indicator display "P" at the same time when turning ON the ignition switch?
YES: WORK END
NO: Check harness between battery and TCM harness connector terminal. Refer to "DIAGNOSIS PROCEDURE ".
NO RELATED
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:
- • 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.