AutoCodes – Chevrolet – P103D 2014 Chevrolet Silverado

P103D 2014 Chevrolet Silverado Code - Engine Coolant Pump Control Signal Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Engine Coolant Pump Control Module, Engine Coolant Pump Control Module harness is open or shorted, Engine Coolant Pump Control 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: P103D 2014 Chevrolet Silverado indicates Engine Coolant Pump Control Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Engine Coolant Pump Control Module, Engine Coolant Pump Control Module harness is open or shorted, Engine Coolant Pump Control 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.

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Code Popularity 262

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Aug 19, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P103D 2014 Chevrolet Silverado Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Engine Coolant Pump Control Signal Message Counter is Incorrect.

OBDII Code P103D 2014 Chevrolet Silverado - Engine Coolant Pump Control Signal Message Counter Incorrect - AutoCodes.com — P103D 2014 Chevrolet Silverado Code - Engine Coolant Pump Control Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P103D 2014 Chevrolet Silverado?

Faulty Engine Coolant Pump Control Module
Engine Coolant Pump Control Module harness is open or shorted
Engine Coolant Pump Control Module circuit poor electrical connection

How to Fix the DTC P103D 2014 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 P103D 2014 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 P103D 2014 Chevrolet Silverado code?

Need more information on how to fix the P103D 2014 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 P103D 2014 Chevrolet Silverado Code

1. What does the OBDII code P103D mean on a 2014 Chevrolet Silverado?

The P103D code indicates an issue with the engine coolant pump control signal, specifically that the message counter is incorrect, suggesting a communication or signal error.

2. What are the common symptoms of the P103D code?

Symptoms may include engine overheating, warning lights on the dashboard, reduced engine performance, or irregular cooling system behavior.

3. What causes the P103D code to appear?

Common causes include a faulty engine coolant pump, damaged wiring or connectors in the coolant pump circuit, or issues with the ECM (Engine Control Module) communication.

4. Can a faulty coolant pump trigger the P103D code?

Yes, a malfunctioning or failing coolant pump can cause the control signal to be incorrect, leading to the P103D code.

5. How can wiring issues cause the P103D code?

Damaged, corroded, or loose wiring and connectors in the coolant pump circuit can disrupt the signal, triggering the P103D code.

6. Can I drive my 2014 Chevrolet Silverado with the P103D code?

It is not recommended to drive with this code active, as it can lead to engine overheating and potential damage if the coolant pump is not functioning properly.

7. How is the P103D code diagnosed?

A technician will use a diagnostic scanner to read the code, inspect the coolant pump and its wiring, and check the ECM for any communication or signal errors.

8. What repairs are typically needed for a P103D code?

Repairs may involve replacing the engine coolant pump, repairing or replacing damaged wiring or connectors, or updating/replacing the ECM if necessary.

9. Is the P103D code related to a software issue in the ECM?

In some cases, the P103D code can result from a software glitch in the ECM, requiring a reflash or update to correct the problem.

10. How much does it typically cost to fix the P103D code?

The repair cost depends on the root cause, ranging from $100-$200 for minor wiring repairs to $500-$1,000 if the coolant pump or ECM requires replacement.