NO DOWNSHIFT O/D To 3RD
- Check O/D switch and O/D OFF indicator light circuit. See O/D SWITCH, O/D OFF INDICATOR LIGHT CIRCUIT chart in TESTS W/CODES article.
- Check main throttle position sensor circuit. See MAIN THROTTLE POSITION SENSOR CIRCUIT chart in TESTS W/CODES article.
- Check solenoid No. 1 and No. 2 circuit. See CODE 62 and CODE 63 in TESTS W/CODES article.
- Check speed sensor No. 1. See CODE 42 in TESTS W/CODES article.
- Check speed sensor No. 2. See CODE 61 in TESTS W/CODES article.
- Check kickdown switch circuit. See CODE 68 in TESTS W/CODES article.
- Check transmission for mechanical failure.
- Check ECU. See SYSTEM/COMP TESTS article.