P0690 Pontiac Code - Electronic Control Module Power Relay Sense Circuit High
Quick Answer
The P0690 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being too high. Common causes include Faulty ECM power relay, ECM power relay sense circuit malfunction, Wiring issues. 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
- P0690 Pontiac indicates Electronic Control Module Power Relay Sense Circuit High.
- Common causes
- Common causes include Faulty ECM power relay, ECM power relay sense circuit malfunction, Wiring issues.
- 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 P0690 Pontiac Description
The P0690 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being too high. The ECM Power Relay Sense Circuit is responsible for providing power to the ECM, which is the brain of the vehicle's engine management system. The ECM controls various functions in the vehicle, including fuel delivery, ignition timing, and emissions control. When the ECM Power Relay Sense Circuit is reading high, it means that there is an issue with the power supply to the ECM, which can lead to a variety of performance issues.
Common Causes of P0690 Pontiac
- Faulty ECM power relay
- ECM power relay sense circuit malfunction
- Wiring issues
- Loose or corroded connections
- ECM power supply problem
Symptoms of P0690 Pontiac
- Check Engine Light illuminated
- Engine hesitation or stalling
- Decreased fuel efficiency
- Engine running rough or misfiring
- Difficulty starting the vehicle
How to Fix P0690 Pontiac
- Use a scan tool to read the code and determine the specific cause of the issue.
- Check the ECM power relay for proper operation and replace if necessary.
- Inspect the ECM power relay sense circuit for any faults and repair as needed.
- Check the wiring and connections related to the ECM power supply for any damage or corrosion and repair as necessary.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0690 Pontiac
The typical repair costs for addressing the P0690 code can vary depending on the specific cause of the issue. In general, parts for this repair may cost between $50 and $200, while labor costs can range from $100 to $300. It is advisable to check with local auto repair shops for a more accurate estimate based on your vehicle's make and model, as well as the severity of the issue. Keep in mind that diagnostic time and labor rates can vary based on location and the shop's expertise.
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Frequently Asked Questions about P0690 Pontiac Code
1. What are the common symptoms of OBDII code P0690 in a Pontiac?
- Common symptoms include rough engine performance, stalling, poor fuel efficiency, and the illumination of the Check Engine Light.
2. What does the OBDII code P0690 Pontiac mean?
- The code P0690 indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit, specifically a high voltage condition.
3. What are the possible causes of OBDII code P0690 in a Pontiac?
- The possible causes include a faulty ECM power relay, damaged wiring or connectors in the power relay circuit, or an ECM malfunction.
4. How can I diagnose the OBDII code P0690 in my Pontiac?
- Diagnosing the code involves using a diagnostic scanner to retrieve the fault codes, inspecting the power relay circuit, checking the relay for proper operation, and testing the ECM.
5. Can I drive my Pontiac with OBDII code P0690?
- It is not recommended to drive your Pontiac with the P0690 code present, as it can lead to further engine damage or performance issues.
6. How do I repair OBDII code P0690 in my Pontiac?
- The repair process involves replacing the faulty ECM power relay, repairing any damaged wiring or connectors, and clearing the fault codes with a diagnostic scanner.
7. Are there any DIY tips for fixing OBDII code P0690 in a Pontiac?
- While some may attempt to replace the ECM power relay themselves, it is recommended to consult a professional mechanic for proper diagnosis and repair.
8. Can a bad battery cause OBDII code P0690 in a Pontiac?
- A weak or failing battery can potentially cause voltage issues that trigger the P0690 code, so it's important to ensure the battery is in good condition.
9. How long does it take to repair OBDII code P0690 in a Pontiac?
- The repair time can vary depending on the exact cause of the issue, but it typically takes a few hours to diagnose and replace the faulty components.
10. Will resetting the Check Engine Light resolve OBDII code P0690 in a Pontiac?
- Resetting the light may temporarily turn it off, but it will not fix the underlying issue causing the P0690 code. It is important to address the root cause of the problem to prevent further issues.
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