Severity: Fix right away. Driving risks expensive damage or a breakdown.
The transmission computer is not getting enough power, so it may shut down or act erratically.
Test the battery, check the transmission fuses, and inspect the wiring and connectors.
The transmission may go into limp mode or stop shifting. Check the battery and fuses first.
Avoid driving until it is checked — towing is the safer choice. The transmission may go into limp mode or stop shifting. Check the battery and fuses first.
The most common causes are: Weak battery; Blown fuse; Corroded connector; Damaged wiring; Failing transmission computer. A scan tool and a visual check of the parts above is where a technician starts.
Test the battery, check the transmission fuses, and inspect the wiring and connectors.
