DTC P0753: Problem in Shift Solenoid Valve A Circuit
- Turn the ignition switch OFF.
- Disconnect PCM connectors B (25P) and D (16P).
- Turn the ignition switch ON (II).
- Measure the voltage between PCM connector terminals D7 and B20 or B22.
Is there voltage?
YES - Repair short to power in the wire between PCM connector terminal D7 and the shift solenoid valve A.
NO - Go to step 5.
- Turn the ignition switch OFF.
- Measure the resistance between PCM connector terminals D7 and B20 or B22.
Is the resistance 12-25 Ω?
YES - Go to step 11.
NO - Go to step 7.
- Check for continuity between PCM connector terminals B20 and body ground, and between B22 and body ground.
Is there continuity?
YES - Go to step 8.
NO - Repair open in the wires between PCM connector terminals B20, B22, and ground (G101), or repair poor ground (G101).
- Disconnect the 2P connector from shift solenoid valve A.
- Check for continuity between PCM connector terminals D7 and B20 or B22.
Is there continuity?
YES - Repair short to ground in the wire between PCM connector terminal D7 and shift solenoid valve A.
NO - Go to step 10.
- Measure shift solenoid valve A resistance at the solenoid valve connector.
Is the resistance 12-25 Ω?
YES - Check for an open in the wire between PCM connector terminal D7 and shift solenoid valve A, and between shift solenoid valve A connector terminal No 1 and ground (G101).
NO - Replace the shift solenoid valve A (see Shift Solenoid Valve A and C Replacement ).
- Turn the ignition switch ON (II)
- Measure the voltage between PCM connector terminals D5 and B20 or B22.
Is there battery voltage?
YES - Check for loose terminal fit in the PCM connectors D5 and D7. If necessary, substitute a known-good PCM and recheck.
NO - Check for blown No 6 (15A) fuse in the driver's under-dash fuse/relay box. If the fuse is OK, repair open in the wire between PCM connector terminal D5 and the driver's under-dash fuse/relay box.