P2670 2017 GMC Sierra 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 2017 GMC Sierra 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 2017 GMC Sierra Description
What are the Possible Causes of the DTC P2670 2017 GMC Sierra?
- 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 2017 GMC Sierra?
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 2017 GMC Sierra 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 2017 GMC Sierra code?
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Frequently Asked Questions about P2670 2017 GMC Sierra Code
1. What does the OBDII code P2670 mean on a 2017 GMC Sierra?
P2670 indicates an issue with the Actuator High Control Circuit Group 2 experiencing low voltage, possibly due to electrical or sensor malfunctions.
2. What are the common symptoms of code P2670 in a 2017 GMC Sierra?
Symptoms may include illuminated check engine light, reduced engine performance, erratic shifting, or failure of certain actuators to operate correctly.
3. What causes the P2670 code to be triggered?
Common causes include a faulty actuator, damaged wiring or connectors in the circuit, a blown fuse, or a failing powertrain control module (PCM).
4. Can I drive my 2017 GMC Sierra with a P2670 code?
While it may still be drivable, operating the vehicle with this code could lead to further damage or reduced performance. It is best to address the issue promptly.
5. How do I diagnose the P2670 code on my GMC Sierra?
Start by inspecting the wiring and connectors associated with the affected actuator, check for blown fuses, and use a multimeter to test for proper voltage in the circuit.
6. What repairs are typically needed for a P2670 code?
Repairs may involve replacing damaged wiring, repairing or replacing the actuator, clearing debris from connectors, or reprogramming or replacing the PCM if necessary.
7. Can a faulty actuator cause the P2670 code?
Yes, a malfunctioning actuator in Circuit Group 2 can cause low voltage and trigger the P2670 code.
8. How much does it cost to fix a P2670 code on a 2017 GMC Sierra?
Costs vary depending on the root cause. Electrical repairs may range from $100 to $300, while actuator or PCM replacement could cost significantly more.
9. What tools are needed to troubleshoot the P2670 code?
Required tools include an OBDII scanner, a multimeter for voltage testing, and possibly wiring diagrams for the actuator circuit.
10. Can clearing the P2670 code with an OBDII scanner fix the issue?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be fixed to prevent the code from returning.
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