P0023 GMC Code - Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Bank 2
Quick Answer
The camshaft position actuator system enables the Engine Control Module (ECM) to change the timing of the camshafts while the engine is operating. Common causes include Faulty Exhaust Camshaft Position Actuator Solenoid Valve Bank 2, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 harness is open or shorted, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 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
- P0023 GMC indicates Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Bank 2.
- Common causes
- Common causes include Faulty Exhaust Camshaft Position Actuator Solenoid Valve Bank 2, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 harness is open or shorted, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 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 P0023 GMC Description
Ignition voltage is supplied directly to the Camshaft Position Actuator Solenoid Valve. The ECM controls the solenoid valve by grounding the control circuit with a solid-state device called a driver. The driver is equipped with a feedback circuit that is pulled-up to a voltage. The ECM can determine if the control circuit is open, shorted to ground, or shorted to a voltage by monitoring the feedback voltage.
The Diagnostic Trouble Code (DTC) will set when the ECM detects an open in the CMP actuator solenoid circuits for greater than 1 second or a cumulative of 5 seconds, when the solenoid is commanded OFF.
What are the Possible Causes of the DTC P0023 GMC?
- Faulty Exhaust Camshaft Position Actuator Solenoid Valve Bank 2
- Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 harness is open or shorted
- Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0023 GMC?
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 P0023 GMC 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 P0023 GMC Code
1. What are the common symptoms of OBDII code P0023 in a GMC vehicle?
- Common symptoms include rough idling, stalling, reduced engine performance, and illuminated Check Engine Light.
2. What is the most likely cause of OBDII code P0023 in a GMC, related to the Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Bank 2?
- The most common cause is a faulty exhaust camshaft position actuator solenoid valve or issues with the wiring harness and connectors.
3. How serious is OBDII code P0023 in a GMC and should it be addressed immediately?
- While the vehicle may still be operable, it is recommended to address P0023 promptly to prevent potential engine damage and ensure optimal performance.
4. Can a DIY enthusiast repair OBDII code P0023 in a GMC, or is it best left to a professional mechanic?
- While some enthusiasts may be able to replace the exhaust camshaft position actuator solenoid valve, diagnosing the exact cause and ensuring proper repair is often best left to a professional.
5. Are there any temporary fixes or workarounds for OBDII code P0023 in a GMC?
- Temporary fixes are not recommended as they may not address the underlying issue causing the code and could lead to further complications.
6. How can I prevent OBDII code P0023 from occurring in my GMC vehicle?
- Regular maintenance, including oil changes and following the manufacturer's recommended service schedule, can help prevent issues that may trigger P0023.
7. What are the typical repair costs associated with addressing OBDII code P0023 in a GMC?
- Repair costs can vary depending on the exact cause of the code and labor rates, but expect to pay for parts and labor for diagnosing and fixing the issue.
8. Can driving with OBDII code P0023 in a GMC cause long-term damage to the vehicle?
- Continued driving with P0023 can potentially lead to damage to the engine components affected by the faulty exhaust camshaft position actuator solenoid valve.
9. How long does it typically take to repair OBDII code P0023 in a GMC?
- The repair time can vary depending on the accessibility of the components and the extent of the issue, but it may take a few hours to a full day.
10. Will resetting the Check Engine Light clear OBDII code P0023 in a GMC?
- Resetting the Check Engine Light may temporarily turn it off, but the underlying issue causing P0023 will need to be addressed to prevent the code from reoccurring.
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