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Condition
Shift solenoid valve-B circuit faulty
Pressure control solenoid valve circuit faulty
Timing solenoid valve circuit faulty
Output shaft speed sensor (VSS) circuit faulty
Input shaft speed sensor circuit faulty
Transmission range sensor circuit faulty
Transmission fluid temperature sensor circuit
faulty
Poor 3→O/D
CAN communication circuit faulty
shift
Throttle position sensor circuit faulty
Engine coolant temperature sensor circuit
faulty
Crank position sensor circuit faulty
O/D off switch circuit faulty
TCM
ECM
Shift solenoid valve-B circuit faulty
Pressure control solenoid valve circuit faulty
Timing solenoid valve circuit faulty
Output shaft speed sensor (VSS) circuit faulty
Input shaft speed sensor circuit faulty
Poor O/D→3
CAN communication circuit faulty
shift
Throttle position sensor circuit faulty
O/D off switch circuit faulty
TCM
ECM
Shift solenoid valve-A circuit faulty
Output shaft speed sensor (VSS) circuit faulty
CAN communication circuit faulty
Poor 3→2 shift
Throttle position sensor circuit faulty
TCM
ECM
Shift solenoid valve-B circuit faulty
Output shaft speed sensor (VSS) circuit faulty
CAN communication circuit faulty
Poor 2→1 shift
Throttle position sensor circuit faulty
TCM
ECM
Possible Cause
AUTOMATIC TRANSAXLE 7B-29
Correction
Inspect circuit for open, short and intermit-
tent. If NG, repair.
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
Refer to "Diagnostic Flow Table A-1: No
Gear Shift to O/D" in this section.
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
Inspect circuit for open, short and intermit-
tent. If NG, repair.
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
Refer to "Fig." in this section.
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
Inspect circuit for open, short and intermit-
tent. If NG, repair.
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
Inspect circuit for open, short and intermit-
tent. If NG, repair.
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
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