Control Module: Testing and Inspection

INSPECTION
1. Remove the transmission control module.
2. Disconnect the control module connectors.




3. Connect the Special Service Tool (SST) (Engine Signal Monitor and Adapter Harness) to the transmission control module as shown.




4. Place the SST (sheet) on the Engine Signal Monitor.
5. Turn the ignition switch ON.
6. Measure the terminal voltage at each terminal.
7. If any control module terminal voltage is incorrect, check the related input of output devices and wiring. If no problem is found, replace the transmission control module.




CAUTION: Applying voltage to terminals A and B of this SST will damage the SST.

NOTE: If the tires are rotated by using a chassis roller with the ignition switch at ON, the ABS control module may memorize the action as a malfunction and the ABS warning light may illuminate. (Refer to the Troubleshooting Notes for the anti lock brake system. If the ignition switch is turned to LOCK and then to ON again, the ABS warning light will not illuminate, because the action will be considered a past malfunction.




TERMINAL VIEW







TERMINAL VOLTAGE CHARTS (Reference Data)