AUTOMATIC TRANSAXLE (M13 ENGINE) 7B1-29
Poor 3
→
O/D
shift
Shift solenoid valve-B circuit faulty
Inspect circuit for open, short and intermit-
tent. If NG, repair.
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
CAN communication circuit faulty
Throttle position sensor circuit faulty
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
Engine coolant temperature sensor circuit
faulty
Crank position sensor circuit faulty
O/D off switch circuit faulty
Refer to “Diagnostic Flow Table A-1” in this
section.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor O/D
→
3
shift
Shift solenoid valve-B circuit faulty
Inspect circuit for open, short and intermit-
tent. If NG, repair.
Pressure control solenoid valve circuit faulty
Timing solenoid valve circuit faulty
Output shaft speed sensor (VSS) circuit faulty
Input shaft speed sensor circuit faulty
CAN communication circuit faulty
Throttle position sensor circuit faulty
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
O/D off switch circuit faulty
Refer to “Diagnostic Flow Table A-1” in this
section.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 3
→
2 shift
Shift solenoid valve-A circuit faulty
Inspect circuit for open, short and intermit-
tent. If NG, repair.
Output shaft speed sensor (VSS) circuit faulty
CAN communication circuit faulty
Throttle position sensor circuit faulty
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 2
→
1 shift
Shift solenoid valve-B circuit faulty
Inspect circuit for open, short and intermit-
tent. If NG, repair.
Output shaft speed sensor (VSS) circuit faulty
CAN communication circuit faulty
Throttle position sensor circuit faulty
Inspect circuit for open, short and intermit-
tent referring to Section 6. If NG, repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Condition Possible Cause Correction
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