Pinout Values and Diagnostic Parameters

INSPECTION OF TCM AND ITS CIRCUITS








TCM and its circuits can be checked at TCM wiring couplers by measuring voltage and resistance.

Voltage Check
1. Remove TCM from vehicle body, if necessary.








Connector "E25" (1 - 5)





Connector "E25" (6 - 28)





Connector "E26" (1 - 20)

2. Check voltage at each terminal of couplers connected.

NOTE: As each terminal voltage is affected by the battery voltage, confirm that it is 11V or more when ignition switch is ON.

Resistance Check








1. Disconnect TCM couplers from TCM with ignition switch OFF.








2. Check resistance between each terminal of couplers disconnected.