DTC 3, or 1 and 3

Fig. 23 Code 3 Or Codes 1 & 3: TCCM Motor Failure (Part 1 Of 2):

Fig. 23 Code 3 Or Codes 1 & 3: TCCM Motor Failure (Part 2 Of 2):

DIAGNOSTIC TROUBLE CODE (DTC) 3 OR 1 AND 3

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 1540
^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 20-amp T/L CTSY 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" DTC3, 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.