P2670 GMC Code - Actuator High Control Circuit Group 2 Low Voltage
Quick Answer
The Transmission Control Module (TCM) receives information from a variety of sensors, switches, and serial data information from other control modules. Common causes include Faulty Transmission Control Solenoid Valve, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted. 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
- P2670 GMC indicates Actuator High Control Circuit Group 2 Low Voltage.
- Common causes
- Common causes include Faulty Transmission Control Solenoid Valve, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted.
- 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 P2670 GMC Description
What are the Possible Causes of the DTC P2670 GMC?
- Faulty Transmission Control Solenoid Valve
- Faulty Transmission Control Module (TCM)
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
How to Fix the DTC P2670 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 P2670 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.
Need more information about the P2670 GMC code?
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Need Help with the Code?
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Information for Specific GMC Models
- P2670 2014 GMC Sierra — Actuator High Control Circuit Group 2 Low Voltage
- P2670 2015 GMC Sierra — Actuator High Control Circuit Group 2 Low Voltage
- P2670 2016 GMC Sierra — Actuator High Control Circuit Group 2 Low Voltage
- P2670 2017 GMC Sierra — Actuator High Control Circuit Group 2 Low Voltage
- P2670 2018 GMC Sierra — Actuator High Control Circuit Group 2 Low Voltage
Frequently Asked Questions about P2670 GMC Code
1. What are some common symptoms of OBDII code P2670 GMC?
- Common symptoms include rough idling, poor engine performance, and potential stalling.
2. What can cause the OBDII code P2670 GMC to trigger?
- This code is typically triggered by a malfunction in the actuator high control circuit group 2, leading to low voltage.
3. How does a faulty actuator high control circuit group 2 contribute to low voltage in a GMC vehicle?
- A malfunction in the actuator high control circuit group 2 can disrupt the proper flow of voltage, resulting in low voltage readings.
4. Can driving with the OBDII code P2670 GMC cause further damage to the vehicle?
- Continued driving with this code may worsen engine performance and fuel efficiency, potentially causing more severe issues over time.
5. What are some DIY repair tips for addressing OBDII code P2670 GMC?
- DIY repair tips may include checking and repairing wiring connections, inspecting the actuator circuit components, and resetting the code using an OBDII scanner.
6. How important is it to address the OBDII code P2670 GMC promptly?
- It is recommended to address this code promptly to prevent further damage to the vehicle and ensure optimal engine performance.
7. Is it safe to drive a GMC vehicle with the actuator high control circuit group 2 low voltage issue?
- It is generally not recommended to drive a vehicle with this issue as it can lead to potential engine problems and safety concerns.
8. Can a faulty sensor be a potential cause of the OBDII code P2670 GMC?
- Yes, a faulty sensor related to the actuator high control circuit group 2 can contribute to triggering this code.
9. How can a mechanic diagnose the OBDII code P2670 GMC accurately?
- A mechanic may use an OBDII scanner to retrieve the code, perform a visual inspection of related components, and conduct voltage tests for accurate diagnosis.
10. What are the typical repair costs associated with fixing OBDII code P2670 GMC?
- Repair costs can vary depending on the exact cause of the issue, but they may range from $200 to $500 for parts and labor.
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