P067A
Cylinder 4 Glow Plug Control Circuit Low
P067A is an OBD-II diagnostic trouble code meaning: Cylinder 4 Glow Plug Control Circuit Low. Common causes: control wire short circuit to ground, broken or damaged control circuit wiring. Estimated repair cost: $17–278.
Symptoms
- Difficulty starting a diesel engine at low temperatures
- Check Engine Light
- White smoke on cold start
- Unstable engine operation after starting
- The glow plug indicator is on
Causes
- Control wire short circuit to ground
- Broken or damaged control circuit wiring
- GPCM module malfunction
- Faulty glow plug (internal short circuit)
- Oxidation or damage to connectors
How to Fix
- Read OBD-II codes and capture a freeze frame
- Inspect the wiring and connectors of the cylinder 4 spark plug and the GPCM
- Measure the voltage in the cylinder 4 spark plug control circuit
- Check the resistance of the glow plug (normal: 0.5–2 Ohm)
- Check the circuit for short circuit to ground
- If the wiring is working properly, diagnose and replace the GPCM
Related codes
Error P067A by Vehicle Brand
FAQ
What does the P067A code mean?
P067A is an OBD-II diagnostic trouble code that indicates: Cylinder 4 Glow Plug Control Circuit Low
What causes a P067A error code?
The most common causes of P067A include: Control wire short circuit to ground; Broken or damaged control circuit wiring; GPCM module malfunction; Faulty glow plug (internal short circuit).
How do I fix a P067A diagnostic trouble code?
To fix P067A: Read OBD-II codes and capture a freeze frame. Inspect the wiring and connectors of the cylinder 4 spark plug and the GPCM. Measure the voltage in the cylinder 4 spark plug control circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P067A?
Yes, but get it checked soon
How much does it cost to fix P067A?
The estimated repair cost for P067A is $17–278. Actual cost depends on your vehicle, location, and labor rates.
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