A/T WARNING LIGHT IS ON
WITHOUT PAST OR CURRENT DTC STORED
IF YOU CONFIRM
The Automatic Transmission check warning light is ON,
AND
There are no TCM related DTCs stored that are PAST or CURRENT.
ACTION
1. Confirm the current TCM part number.
2. Reprogram the TCM, if applicable.
3. Drive the vehicle and complete a transmission drive cycle.
4. Confirm that the A/T warning light does not come back ON.
 See the Repair Overview on page 2.
