Saturntech9, I do understand, just that he did not put it correctly. Lol.
Eliseo2005, P1768 is a fault with the automatic transmission clutch pressure control valve circuit A circuit but it is for yesr model 2001 to 2003. Maybe you have the year model wrong.
The diagram shows the part that is causing the problem. Check the wire connectors for contaminations etc. Ensure they are clean and tight.
DTC P1768: PROBLEM IN A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A
CIRCUIT (2001-03 MODELS)
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NOTE : This code is caused by an electrical circuit problem and
cannot be caused by a mechanical problem in the transmission.
1. Disconnect A/T clutch pressure control solenoid valve A connector (2P).
2. Measure A/T clutch pressure control solenoid valve A resistance at the solenoid valve connector.
Is the resistance 3-10??
YES - Go to step 3.
NO - Replace the A/T clutch pressure control solenoid valve A and B.
3. Disconnect PCM connectors B (24P) and C (22P).
4. Check for continuity between PCM connector terminal B7 and body ground, and between terminal C1 and body ground.
Is there continuity?
YES - Repair short to ground in the wires between PCM connector terminals B7, C1, and the A/T clutch pressure control solenoid valve A.
NO - Go to step 5.
5. Connect A/T clutch pressure control solenoid valve A connector.
6. Measure the resistance between PCM connector terminals B7 and C1.
Is the resistance 3-10??
YES - Go to step 7.
NO - Repair loose terminal or open in the wires between PCM connector terminals B7 and C1, and the A/T clutch pressure control solenoid valve A.
7. Disconnect PCM connector A (31P).
8. Check for continuity between PCM connector terminal A23 and body ground, and between terminal A24 and body ground.
Is there continuity?
YES - Check for loose terminal fit, and repair if necessary. 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 - Repair open in the wire between PCM connector terminals A23, A24, and ground (G101), or repair poor ground (G101).
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Monday, July 2nd, 2012 AT 2:05 PM