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P0690 2014 Chevrolet Silverado Code - Electronic Control Module Power Relay Sense Circuit High

Quick Answer

The P0690 code for a 2014 Chevrolet Silverado indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being too high. Common causes include Faulty ECM power relay, Short circuit in the wiring, Defective Electronic 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
P0690 2014 Chevrolet Silverado indicates Electronic Control Module Power Relay Sense Circuit High.
Common causes
Common causes include Faulty ECM power relay, Short circuit in the wiring, Defective Electronic 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P0690 2014 Chevrolet Silverado Description

The P0690 code for a 2014 Chevrolet Silverado indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being too high. The ECM power relay is responsible for supplying power to the Electronic Control Module, which is a crucial component in the vehicle's engine management system. The power relay sense circuit is designed to monitor the voltage level of the power relay to ensure it is within acceptable limits. When the voltage in this circuit is detected as being too high, it triggers the P0690 trouble code.

OBDII Code P0690 2014 Chevrolet Silverado - Electronic Control Module Power Relay Sense Circuit High
P0690 2014 Chevrolet Silverado Code - Electronic Control Module Power Relay Sense Circuit High

Common Causes of P0690 2014 Chevrolet Silverado

  1. Faulty ECM power relay
  2. Short circuit in the wiring
  3. Defective Electronic Control Module
  4. Corrosion or loose connections in the circuit
  5. Issues with the vehicle's battery or alternator

Symptoms of P0690 2014 Chevrolet Silverado

  1. Engine misfires or hesitation
  2. Illuminated check engine light
  3. Difficulty starting the vehicle
  4. Reduced fuel efficiency
  5. Stalling or rough idling

How to Fix P0690 2014 Chevrolet Silverado

  1. Begin by conducting a thorough inspection of the ECM power relay and the power relay sense circuit to identify any visible damage or loose connections.
  2. Test the power relay with a multimeter to determine if it is functioning correctly. Replace the relay if necessary.
  3. Check the wiring in the power relay sense circuit for any signs of damage or corrosion. Repair or replace any damaged wiring.
  4. Inspect the Electronic Control Module for any faults or malfunctions. If the ECM is found to be defective, it will need to be replaced.
  5. Clear the trouble code from the vehicle's computer and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0690 2014 Chevrolet Silverado

The typical repair costs for addressing a P0690 code on a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue and the extent of repairs needed. In general, the cost of replacing a faulty ECM power relay can range from $50 to $150, while replacing the Electronic Control Module can cost between $200 to $600. Labor costs at auto repair shops can range from $80 to $150 per hour. It is advisable to obtain quotes from local shops to get a more accurate estimate for this repair.

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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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