P1608
Engine Control Module Malfunction
Severity
🔴 HighCan you drive?
Do not drive — repair immediately
Approx. repair cost
$167–556 (est.)
Symptoms
- Unstable engine operation
- Power dips
- Check Engine Light Illuminates
- Problems starting the engine
- Reduced efficiency of engine systems
Causes
- Internal damage to the ECU
- Control unit power supply problems
- Short circuit in the ECU circuits
- Software glitches
- Corrosion of contacts or connectors
How to Fix
- Check power supply and grounding of the ECU
- Inspect connectors and wiring harness
- Scan the ECU for additional errors
- Try to reflash the control unit
- Replace the ECU if the fault is confirmed