P1A4F
Drive Motor 1 Control Module Not Programmed
Severity
🔴 HighCan you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)
Symptoms
- Check Engine light comes on
- Problems starting the engine
- Reduced engine power
- Unstable engine operation
- The car goes into emergency mode
Causes
- Engine control module not programmed
- Module software failure
- Problems with communication between modules
- Engine control module malfunction
- Incorrect software update
How to Fix
- Check the status of the engine control module
- Run software diagnostics
- Reprogram the engine control module
- If necessary, replace the control module
- Check connections and wiring harness