AutoCodes – Chevrolet – P2670 2015 Chevrolet Silverado

P2670 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado 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.

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Code Popularity 343

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2670 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado - Actuator High Control Circuit Group 2 Low Voltage - AutoCodes.com — P2670 2015 Chevrolet Silverado Code - Actuator High Control Circuit Group 2 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2670 2015 Chevrolet Silverado?

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 2015 Chevrolet Silverado?

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 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado code?

Need more information on how to fix the P2670 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2015 Chevrolet Silverado Code

1. What does the OBDII code P2670 mean on a 2015 Chevrolet Silverado?

The P2670 code indicates an issue with the Actuator High Control Circuit Group 2, where the voltage is lower than expected.

2. What are the common symptoms of code P2670 in a 2015 Chevrolet Silverado?

Symptoms may include an illuminated Check Engine Light, reduced engine performance, or unresponsive actuators like throttle or variable valve timing components.

3. What causes the P2670 code to appear on a 2015 Chevrolet Silverado?

Common causes include faulty actuators, damaged wiring or connectors in the control circuit, a failed control module, or corrosion in electrical components.

4. Can a bad actuator trigger the P2670 code in a Chevrolet Silverado?

Yes, a malfunctioning actuator in the Group 2 circuit can cause the P2670 code to be stored.

5. How do I diagnose the P2670 code on a 2015 Chevrolet Silverado?

Diagnosis involves checking for damaged or corroded wiring, inspecting connectors, testing the actuator for functionality, and verifying proper voltage in the circuit.

6. Is the P2670 code serious on a Chevrolet Silverado?

Yes, it can affect the performance of critical systems like the engine or transmission, so it should be addressed promptly.

7. What tools are needed to troubleshoot the P2670 code on a 2015 Chevrolet Silverado?

Youâ€™ll need an OBDII scanner, a multimeter for voltage testing, and possibly a wiring diagram for the affected circuit.

8. Can the P2670 code be caused by a weak battery in a Chevrolet Silverado?

Yes, a weak or failing battery can cause low voltage issues, potentially triggering the P2670 code.

9. How do I fix the P2670 code on a 2015 Chevrolet Silverado?

Repairs may include replacing damaged wiring, repairing corroded connectors, replacing the faulty actuator, or reprogramming or replacing the control module.

10. Can the P2670 code clear itself on a 2015 Chevrolet Silverado?

In rare cases, if the issue was intermittent and resolves itself, the code may clear after several drive cycles, but itâ€™s best to diagnose and address the root cause.