DTC 3, or 1 and 3

Diagnostic Chart:

Wiring Diagram:

Each time the electric-shift motor is turned on or off, it and its electrical circuits are tested, both in the de-energized and energized conditions. If the motor circuits are not functioning properly, one of the following exists:
- An open or short circuit in one or more of the following:
- Motor supply circuit 60
- Motor ground circuit 150
- Motor circuit 1552
- Motor circuit 1553
- Motor circuit connections
- A short and/or open within the motor itself
- A malfunctioning motor relay (not energizing or not de-energizing)

If one or both of the relays fail to detect the proper voltage after energizing, the shift is aborted and the fault counter counts in 4-part increments. When the fault counter reaches 16 increments the "TCCM Motor Circuit" DTC 3 is flagged. After the condition that caused the fault code to be flagged has been corrected, the fault code must be cleared by removing the 5-amp TCCM fuse for 2 minutes and 30 seconds.

If one or both relays fail to detect the proper voltage after de-energizing (condition 4), both relays are turned on even with the ignition turned off to prevent the motor from running. The TCCM then flags a "TCCM Motor Circuit" DTC 3, and flashes the status lamps to inform the vehicle driver that a condition that must be corrected immediately exists. This condition also causes the battery to drain when the ignition is off.