P2508
ECM/PCM Power Input Signal High
P2508 is an OBD-II diagnostic trouble code meaning: ECM/PCM Power Input Signal High. Common causes: faulty generator, problems with the voltage regulator. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Unstable engine operation
- Problems starting the engine
- Malfunctions of the car's electronic systems
- Reduced engine power
Causes
- Faulty generator
- Problems with the voltage regulator
- Short circuit in the ECU power supply circuit
- Oxidized or damaged contacts
- Damaged wiring
How to Fix
- Check the generator voltage at idle and under load
- Inspect and clean the contacts in the ECU power supply circuit
- Check wiring integrity
- Test the voltage regulator
- If necessary, replace the generator or voltage regulator
Related codes
Error P2508 by Vehicle Brand
FAQ
What does the P2508 code mean?
P2508 is an OBD-II diagnostic trouble code that indicates: ECM/PCM Power Input Signal High
What causes a P2508 error code?
The most common causes of P2508 include: Faulty generator; Problems with the voltage regulator; Short circuit in the ECU power supply circuit; Oxidized or damaged contacts.
How do I fix a P2508 diagnostic trouble code?
To fix P2508: Check the generator voltage at idle and under load. Inspect and clean the contacts in the ECU power supply circuit. Check wiring integrity. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2508?
Limited driving only, diagnose soon
How much does it cost to fix P2508?
The estimated repair cost for P2508 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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