AutoCodesChevrolet – P2670 Chevrolet

P2670 Chevrolet 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 Chevrolet 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,331
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 18, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2670 Chevrolet Description

The Transmission Control Module (TCM) receives information from a variety of sensors, switches, and serial data information from other control modules. This information is used to control a combination of solenoid valves to obtain the correct line pressure, gear ratio, and torque converter clutch operation. The Transmission Control Solenoid Valves are electro-mechanically operated valves. The valves are controlled by an electric current through the solenoid. The TCM high side driver 2 is located inside of the control solenoid valve assembly which has no serviceable parts. The high side driver 2 provides power to the Transmission Control Module pressure control solenoids and shift solenoids. The Diagnostic Trouble Code (DTC) will be set when the TCM detects an internal open or short to ground on the high side driver 2 for 1 s.
OBDII Code P2670 Chevrolet - Actuator High Control Circuit Group 2 Low Voltage - AutoCodes.com
P2670 Chevrolet Code - Actuator High Control Circuit Group 2 Low Voltage

What are the Possible Causes of the DTC P2670 Chevrolet?

  • 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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

Need more information on how to fix the P2670 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2670 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2670 Chevrolet Code

1. What does the OBDII code P2670 mean on a Chevrolet?

P2670 indicates "Actuator High Control Circuit Group 2 Low Voltage," meaning the vehicle's ECM detected a low voltage issue in the actuator control circuit for group 2.

2. What are the common symptoms of code P2670 in a Chevrolet?

Symptoms may include the check engine light turning on, reduced engine performance, erratic idling, or failure of certain actuators to function properly.

3. What causes the P2670 code to be triggered?

Common causes include a faulty actuator, damaged wiring or connectors in the circuit, a failing ECM, or low system voltage due to a weak battery or alternator issues.

4. Can I keep driving my Chevrolet with a P2670 code?

While it might be possible to drive, it’s not advisable as it can lead to further damage or reduced performance. Addressing the issue promptly is recommended.

5. How do I diagnose the P2670 code on a Chevrolet?

Diagnosis typically involves checking the actuator in group 2, inspecting the wiring and connectors for damage, testing the voltage in the circuit, and, if necessary, analyzing the ECM for faults.

6. How can I fix the P2670 code on my Chevrolet?

Repairs may include replacing a faulty actuator, repairing or replacing damaged wiring or connectors, ensuring the battery and alternator are functioning properly, or reprogramming/replacing the ECM.

7. Is the P2670 code related to other codes?

Yes, it may appear alongside other actuator-related codes. Addressing all related codes together can help identify the root cause.

8. What tools are needed to diagnose the P2670 code?

You’ll need an OBDII scanner, a multimeter to check voltage, and possibly wiring diagrams for your Chevrolet model.

9. Can a weak battery cause the P2670 code?

Yes, a weak or failing battery can lead to insufficient voltage in the circuit, triggering the P2670 code.

10. How much does it cost to repair the P2670 code on a Chevrolet?

Repair costs vary depending on the issue, but it might range from $50 for minor wiring repairs to $500 or more if ECM replacement is required.

Discuss the causes and fixes for P2670 Chevrolet OBDII Code

Code P2670 Chevrolet comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play