P1624
Malfunction Indicator Lamp Request Signal Active
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$6–167 (est.)
Symptoms
- Check engine light is on
- Reduced engine power
- Switching to emergency mode
- Other fault codes appear
- Deterioration of vehicle dynamics
Causes
- Fault in another vehicle module (ABS, transmission, etc.)
- Problems with wiring between modules
- Engine control module (ECM) malfunction
- Short circuit in MIL signal circuit
- Problems with power supply or grounding of modules
How to Fix
- Read all trouble codes using an OBD-II scanner
- Check the condition of the wiring between modules
- Check power supply and grounding of all modules
- Diagnose and correct the underlying problem that caused the MIL request
- If necessary, replace the faulty module