AutoCodes – Chevrolet – P1670 Chevrolet

P1670 Chevrolet Code - Quad Driver Module 'C' Fault Detected Conditions

Quick Answer

With the key on, the Powertrain Control Module (PCM) detects an open, short-to-ground or short-to-voltage on the QDM 'C' fault line (to the Air pump relay or Air pump solenoid), condition met for 20 seconds. Common causes include Faulty Quad Driver Module, Quad Driver Module harness is open or shorted, Quad Driver Module 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
P1670 Chevrolet indicates Quad Driver Module 'C' Fault Detected Conditions.
Common causes
Common causes include Faulty Quad Driver Module, Quad Driver Module harness is open or shorted, Quad Driver Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 8,848
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 08, 2019
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Code P1670 Chevrolet Description

With the key on, the Powertrain Control Module (PCM) detects an open, short-to-ground or short-to-voltage on the QDM 'C' fault line (to the Air pump relay or Air pump solenoid), condition met for 20 seconds.
OBDII Code P1670 Chevrolet - Quad Driver Module 'C' Fault Detected Conditions - AutoCodes.com
P1670 Chevrolet Code - Quad Driver Module 'C' Fault Detected Conditions

What are the Possible Causes of the DTC P1670 Chevrolet?

  • Faulty Quad Driver Module
  • Quad Driver Module harness is open or shorted
  • Quad Driver Module circuit poor electrical connection

How to Fix the DTC P1670 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 P1670 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.

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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 P1670 Chevrolet Code

1. What does OBDII code P1670 for Chevrolet indicate?

The P1670 code signifies a Quad Driver Module 'C' Fault Detected Conditions in the vehicle's engine control module (ECM).

2. What are the common symptoms of a Quad Driver Module 'C' fault?

Common symptoms include engine misfires, rough idling, stalling, decreased fuel efficiency, and issues with vehicle acceleration.

3. What are the possible causes of the P1670 code in a Chevrolet vehicle?

Possible causes include a faulty Quad Driver Module 'C', wiring issues, a damaged ECM, or a poor connection between components.

4. How can I diagnose the Quad Driver Module 'C' fault in my Chevrolet?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific trouble codes, followed by inspecting the wiring and connections associated with the Quad Driver Module 'C'.

5. Can I drive my Chevrolet with the P1670 code present?

It is not recommended to drive the vehicle with the P1670 code active, as it can lead to further damage and potential safety hazards.

6. How can I repair a Quad Driver Module 'C' fault in my Chevrolet?

Repair options may include replacing the faulty Quad Driver Module 'C', repairing damaged wiring, ensuring proper connections, or seeking assistance from a qualified mechanic.

7. Will resetting the trouble codes clear the P1670 code in my Chevrolet?

Resetting the trouble codes may temporarily clear the P1670 code, but if the underlying issue is not addressed, the code is likely to reappear.

8. Is the Quad Driver Module 'C' fault a common issue in Chevrolet vehicles?

The Quad Driver Module 'C' fault is not extremely common, but it can occur in Chevrolet vehicles, especially in older models or those with high mileage.

9. Can a DIY enthusiast fix the Quad Driver Module 'C' fault in a Chevrolet?

While some DIY enthusiasts may have the skills to address this issue, it is recommended to consult a professional mechanic for proper diagnosis and repair.

10. How much does it typically cost to repair a Quad Driver Module 'C' fault in a Chevrolet?

The cost of repair can vary depending on the specific cause of the issue, but it may range from $200 to $500 or more, including parts and labor.

Discuss the causes and fixes for P1670 Chevrolet OBDII Code

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