TCM Self-diagnostic Procedure (No Tools)
WARNING: This page is about a different variant/trim than selected.
- CHECK O/D OFF INDICATOR LAMP
- Move A/T selector lever to "P" position.
Start the engine.
Warm engine to normal operating temperature.
- Turn ignition switch to "OFF" position.
- Wait 5 seconds.
- Turn ignition switch to "ON" position.
(Do not start engine.)
- Does O/D OFF indicator lamp come on for about 2 seconds?
Yes or No
- Yes: GO TO 2.
- No: GO TO 1. O/D OFF INDICATOR LAMP DOES NOT COME ON .
- Move A/T selector lever to "P" position.
- JUDGEMENT PROCEDURE STEP 1
- Turn ignition switch to "OFF" position.
- Turn ignition switch to "ACC" position.
- Move A/T selector lever from "P" to "D" position.
- Turn ignition switch to "ON" position.
(Do not start engine.)
- Depress and hold overdrive control switch (the O/D OFF indicator lamp will be "ON") until directed to release the switch.
If O/D OFF indicator lamp does not come on, go to TCM SELF-DIAGNOSIS DOES NOT ACTIVATE {PARK/NEUTRAL POSITION (PNP), OVERDRIVE CONTROL AND THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] SWITCHES CIRCUIT CHECKS} .
- Turn ignition switch to "OFF" position.
- Turn ignition switch to "ON" position.
(Do not start engine.)
- Release the overdrive control switch (the O/D OFF indicator lamp will be "OFF").
- Wait 2 seconds.
- Move A/T selector lever to "2" position.
- Depress and release the overdrive control switch (the O/D OFF indicator lamp will be "ON").
- Depress and hold the overdrive control switch (the O/D OFF indicator lamp will be "OFF") until directed to release the switch.
- GO TO 3.
- JUDGEMENT PROCEDURE STEP 2
- Move A/T selector lever to "1" position.
- Release the overdrive control switch.
- Depress and release the overdrive control switch (the O/D OFF indicator lamp will be "ON").
- Depress and release the overdrive control switch (the O/D OFF indicator lamp will be "OFF").
- Depress and hold the overdrive control switch (the O/D OFF indicator lamp will be "ON") until directed to release the switch.
- Depress accelerator pedal fully and release.
- Release the overdrive control switch (the O/D OFF indicator lamp will begin to flash "ON" and "OFF").
- GO TO 4.
- CHECK SELF-DIAGNOSIS CODE
Check O/D OFF indicator lamp. Refer to JUDGEMENT OF SELF-DIAGNOSIS CODE .
- DIAGNOSIS END