P1906 Volkswagen Code - Charge Air Coolant Pump Relay Open Circuit/Short To Ground
Quick Answer
P1906 Volkswagen indicates Charge Air Coolant Pump Relay Open Circuit/Short To Ground. Common causes include Faulty Charge Air Coolant Pump Relay, Charge Air Coolant Pump Relay harness is open or shorted, Charge Air Coolant Pump Relay circuit poor electrical connection. 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 Volkswagen indicates Charge Air Coolant Pump Relay Open Circuit/Short To Ground.
- Common causes
- Common causes include Faulty Charge Air Coolant Pump Relay, Charge Air Coolant Pump Relay harness is open or shorted, Charge Air Coolant Pump Relay circuit poor electrical connection.
- 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.
Code P1906 Volkswagen Description
What are the Possible Causes of the DTC P1906 Volkswagen?
- Faulty Charge Air Coolant Pump Relay
- Charge Air Coolant Pump Relay harness is open or shorted
- Charge Air Coolant Pump Relay circuit poor electrical connection
How to Fix the DTC P1906 Volkswagen?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1906 Volkswagen code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1906 Volkswagen Code
1. What does the OBDII code P1906 mean on a Volkswagen?
P1906 indicates an issue with the charge air coolant pump relay, specifically an open circuit or short to ground, which may affect the operation of the charge air cooling system.
2. What are the common symptoms of code P1906 in a Volkswagen?
Symptoms may include reduced engine performance, increased intake air temperatures, illuminated check engine light, and possible engine overheating in severe cases.
3. What causes the P1906 code to appear on a Volkswagen?
Common causes include a faulty charge air coolant pump relay, damaged wiring or connections, or a failed charge air coolant pump itself.
4. Can I drive my Volkswagen with the P1906 code?
While it may be possible to drive, prolonged operation with this code can lead to decreased performance and potential engine damage due to overheating or detonation.
5. How can I diagnose the P1906 code on my Volkswagen?
Start by inspecting the charge air coolant pump relay, checking for damaged or corroded wiring, and testing the relay with a multimeter. Verify the pump's operation as well.
6. How do I fix the P1906 code on my Volkswagen?
Repairs may include replacing a faulty charge air coolant pump relay, repairing damaged wiring, or replacing the charge air coolant pump if it is not functioning properly.
7. What tools are needed to troubleshoot the P1906 code?
You’ll need an OBDII scanner, a multimeter, and possibly wiring diagrams specific to your Volkswagen model to diagnose and repair the issue.
8. What happens if the P1906 code is ignored?
Ignoring this code can lead to higher intake air temperatures, reduced fuel efficiency, and potential engine damage over time due to inadequate cooling.
9. How much does it cost to repair the P1906 issue in a Volkswagen?
Repair costs can vary depending on the root cause but may range from $50 for a new relay to several hundred dollars if the charge air coolant pump needs replacement.
10. Is the P1906 code specific to Volkswagen vehicles?
While P1906 is a generic OBDII code, its precise meaning and associated systems may differ between manufacturers. For Volkswagen, it pertains to the charge air coolant pump relay.
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