P1906
Charge Air Coolant Pump Relay Open Circuit/Short To Ground
P1906 is an OBD-II diagnostic trouble code meaning: Charge Air Coolant Pump Relay Open Circuit/Short To Ground. Common causes: relay control circuit open, short circuit to ground. Estimated repair cost: $6–28.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Engine overheating in some operating modes
- Unstable engine operation
Causes
- Relay control circuit open
- Short circuit to ground
- Faulty coolant pump relay
- Wiring Harness Problems
- Engine control unit malfunction
How to Fix
- Check the integrity of the relay control circuit
- Check for short circuit to ground
- Check the functionality of the cooling pump relay
- Inspect the wiring harness for damage
- If necessary, replace the relay or repair the wiring
Related codes
FAQ
What does the P1906 code mean?
P1906 is an OBD-II diagnostic trouble code that indicates: Charge Air Coolant Pump Relay Open Circuit/Short To Ground
What causes a P1906 error code?
The most common causes of P1906 include: Relay control circuit open; Short circuit to ground; Faulty coolant pump relay; Wiring Harness Problems.
How do I fix a P1906 diagnostic trouble code?
To fix P1906: Check the integrity of the relay control circuit. Check for short circuit to ground. Check the functionality of the cooling pump relay. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1906?
Yes, but get it checked soon
How much does it cost to fix P1906?
The estimated repair cost for P1906 is $6–28. Actual cost depends on your vehicle, location, and labor rates.
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