Engine-CodesGMC – P1662 GMC

P1662 GMC Code - Cruise Control Inhibit Control Circuit Conditions

Quick Answer

The P1662 diagnostic trouble code (DTC) for GMC vehicles pertains to the Cruise Control Inhibit Control Circuit Conditions. Common causes include Faulty cruise control switches, Damaged wiring harnesses, Malfunctioning cruise control module. 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
P1662 GMC indicates Cruise Control Inhibit Control Circuit Conditions.
Common causes
Common causes include Faulty cruise control switches, Damaged wiring harnesses, Malfunctioning cruise control module.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1662 GMC Description

The P1662 diagnostic trouble code (DTC) for GMC vehicles pertains to the Cruise Control Inhibit Control Circuit Conditions. This code indicates that there is a problem with the circuitry that controls the cruise control system in the vehicle. The cruise control system allows the driver to set a specific speed for the vehicle to maintain automatically, providing convenience and comfort during long drives. When this code is triggered, the cruise control system may become inoperative, leading to potential safety concerns and inconvenience for the driver.

OBDII Code P1662 GMC - Cruise Control Inhibit Control Circuit Conditions
P1662 GMC Code - Cruise Control Inhibit Control Circuit Conditions

Common Causes of P1662 GMC

  1. Faulty cruise control switches
  2. Damaged wiring harnesses
  3. Malfunctioning cruise control module
  4. Electrical issues in the cruise control system
  5. Corrosion or poor connections in the circuitry

Symptoms of P1662 GMC

  1. Inoperative cruise control system
  2. Cruise control light flashing or staying on
  3. Speed fluctuations when cruise control is engaged
  4. Vehicle speed not maintaining a set point
  5. Check Engine Light may be illuminated

How to Fix P1662 GMC

  1. Diagnose the issue by using a scan tool to retrieve the specific DTC and identify the problem area.
  2. Inspect the cruise control switches, wiring harnesses, and connections for any signs of damage or corrosion.
  3. Test the cruise control module to ensure it is functioning correctly and replace if necessary.
  4. Repair or replace any faulty components in the cruise control system.
  5. Clear the DTC and test the cruise control system to verify that the issue has been resolved.

Cost to Fix P1662 GMC

The cost of repairing the Cruise Control Inhibit Control Circuit Conditions code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the parts and labor for this repair can range from $150 to $500. It's important to note that the diagnosis time and labor rates at auto repair shops can fluctuate, so it's recommended to obtain quotes from local shops for a more accurate estimate. Additionally, the cost may be higher if the cruise control module needs to be replaced or if there are multiple underlying issues contributing to the code.

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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.

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