Automatic Transmission

DTC Troubleshooting (cont'd)

14-93  

DTC P1768: Problem in A/T Clutch Pressure Control Solenoid Valve A Circuit

NOTE:

  • Record all freeze data before you troubleshoot.
  • The illustration shows the example of connector terminal arrangement; connector terminal arrangement varies with the models.
  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.

A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A CONNECTOR

Terminal side of male terminals

Is the resistance about 5 ohm?

YES - Go to step 3.

NO - Replace the A/T clutch pressure control solenoid valves A and B.

  1. Disconnect PCM connectors B (24P) and C (22P).

  1. Check for continuity between PCM connector terminal B7 and body ground and between terminal C1 and body ground.

PCM CONNECTORS

Wire side of female terminals

Is there continuity?

YES - Repair short to ground in the wires between PCM connector terminals B7 and C1 and the A/T clutch pressure control solenoid valve A.

NO - Go to step 5.

  1. Connect A/T clutch pressure control solenoid valve A connector.
  2. Measure the resistance between PCM connector terminals B7 and C1.

PCM CONNECTORS

Wire side of female terminals

Is the resistance about 5 ohm?

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.