P0753
DTC P0753: Problem in Shift Solenoid Valve A CircuitNOTE:
^ Record all freeze data and review General Troubleshooting Information before you troubleshoot.
^ This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
1. Turn the ignition switch OFF.
2. Disconnect PCM connectors A (31P) and C (22P).
3. Turn the ignition switch ON (II).
4. Measure the voltage between PCM connector terminals C6 and A23 or A24.
Is there voltage?
YES-Repair short to power in the wire between PCM connector terminal C6 and the shift solenoid valve A.
NO-Go to step 5.
5. Turn the ignition switch OFF.
6. Measure the resistance between PCM connector terminals C6 and A23 or A24.
Is there 12 - 25 Ohms ?
YES-Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
NO-Go to step 7.
7. Check for continuity between PCM connector terminal A23 and body ground, and between terminal A24 and body ground.
Is there continuity?
YES-Go to step 8.
NO-Repair open in the wires between PCM connector terminals A23 and A24, and ground (G101), or repair poor ground (G101).
8. Disconnect shift solenoid valves A and B connector (2P).
9. Check for continuity between PCM connector terminals C6 and A23 or A24.
Is there continuity?
YES-Repair short to ground in the wire between PCM connector terminal C6 and the shift solenoid valve A.
NO-Go to step 10.
10. Measure the resistance between the No. 1 terminal of the shift solenoid valves A and B connector and body ground.
Is there 12 - 25 Ohms ?
YES-Check for an open in the wire between PCM connector terminal C6 and the shift solenoid valve A.
NO-Replace the shift solenoid valves A and B.