P1906 Code - Charge Air Coolant Pump Relay Open Circuit/Short To Ground
Quick Answer
The P1906 code indicates that there is an issue with the Charge Air Coolant Pump Relay in the vehicle's engine control module. Common causes include Faulty charge air coolant pump relay, Wiring issues or a short circuit in the relay circuit, Corrosion or damage to relay connectors. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1906 indicates Charge Air Coolant Pump Relay Open Circuit/Short To Ground.
- Common causes
- Common causes include Faulty charge air coolant pump relay, Wiring issues or a short circuit in the relay circuit, Corrosion or damage to relay connectors.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1906 Description
The P1906 code indicates that there is an issue with the Charge Air Coolant Pump Relay in the vehicle's engine control module. This code specifically points to an open circuit or a short to ground in the relay, which can disrupt the operation of the charge air coolant pump. The charge air coolant pump is responsible for regulating the temperature of the air that enters the engine, ensuring optimal performance and efficiency.
Common Causes of P1906
- Faulty charge air coolant pump relay
- Wiring issues or a short circuit in the relay circuit
- Corrosion or damage to relay connectors
- Electrical system malfunctions
- Problems with the engine control module
Symptoms of P1906
- Decreased engine performance
- Reduced fuel efficiency
- Engine running hotter than usual
- Rough idling
- Stalling
How to Fix P1906
- Begin by conducting a visual inspection of the charge air coolant pump relay and its wiring for any visible damage or corrosion.
- Test the relay using a multimeter to check for continuity and proper functioning.
- Check the relay connectors for any loose connections or signs of damage.
- If the relay is faulty, replace it with a new one and ensure proper installation.
- Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1906
The cost of repairing a charge air coolant pump relay open circuit/short to ground issue can vary depending on the make and model of the vehicle, as well as the specific parts needed for the repair. In general, the cost of a new charge air coolant pump relay can range from $50 to $150, with additional costs for labor and diagnosis. The total repair cost, including parts and labor, can range from $150 to $300. It is advisable to consult with a trusted mechanic or auto repair shop for a more precise estimate based on the specific circumstances of the vehicle.
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Code P1906 Information for Specific Makes
- P1906 Audi — Charge Air Coolant Pump Relay Open Circuit/Short To Ground
- P1906 Volkswagen — Charge Air Coolant Pump Relay Open Circuit/Short To Ground
Frequently Asked Questions about P1906 Code
1. What are the common symptoms of OBDII code P1906?
The common symptoms of OBDII code P1906 include engine stalling, rough idling, poor acceleration, and illuminated Check Engine Light.
2. What does OBDII code P1906 indicate?
OBDII code P1906 indicates a Charge Air Coolant Pump Relay Open Circuit/Short To Ground error.
3. What are the possible causes of OBDII code P1906?
Possible causes of OBDII code P1906 include a faulty charge air coolant pump relay, damaged wiring or connectors, or a short circuit in the charge air coolant pump circuit.
4. How can I diagnose the issue causing OBDII code P1906?
To diagnose the issue causing OBDII code P1906, you can use a scan tool to read the code, inspect the wiring and connectors for damage, and test the charge air coolant pump relay for proper functionality.
5. Can I continue driving with OBDII code P1906?
It is not recommended to continue driving with OBDII code P1906 as it can lead to further damage to the vehicle and potential safety hazards. It is best to address the issue promptly.
6. How can I repair OBDII code P1906?
To repair OBDII code P1906, you may need to replace the faulty charge air coolant pump relay, repair any damaged wiring or connectors, and clear the code using a scan tool.
7. Is it possible to reset OBDII code P1906 without fixing the underlying issue?
Resetting OBDII code P1906 without fixing the underlying issue may temporarily turn off the Check Engine Light, but the code is likely to reappear if the root cause is not addressed.
8. Can a DIY enthusiast fix OBDII code P1906?
Depending on their skill level and access to tools, a DIY enthusiast may be able to fix OBDII code P1906 by following repair guides and procedures specific to their vehicle.
9. Will fixing OBDII code P1906 improve my vehicle's performance?
Fixing OBDII code P1906 can improve your vehicle's performance by resolving issues such as engine stalling, rough idling, and poor acceleration associated with the code.
10. How long does it typically take to repair OBDII code P1906?
The time it takes to repair OBDII code P1906 can vary based on the extent of the issue and the availability of parts. It may take anywhere from a few hours to a day for the repair to be completed.
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