AutoCodes – Chevrolet – P189C 2014 Chevrolet Silverado

P189C 2014 Chevrolet Silverado Code - Transmission Range Command Message Performance

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission 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: P189C 2014 Chevrolet Silverado indicates Transmission Range Command Message Performance.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission 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 416

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 Sep 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P189C 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 Transmission Range Command Message Performance.

OBDII Code P189C 2014 Chevrolet Silverado - Transmission Range Command Message Performance - AutoCodes.com — P189C 2014 Chevrolet Silverado Code - Transmission Range Command Message Performance

What does this mean?

What are the Possible Causes of the DTC P189C 2014 Chevrolet Silverado?

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 P189C 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 P189C 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 P189C 2014 Chevrolet Silverado code?

Need more information on how to fix the P189C 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 P189C 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P189C in a 2014 Chevrolet Silverado?

- Common symptoms may include harsh shifting, transmission slippage, and the transmission failing to engage properly.

2. What does the OBDII code P189C indicate in a 2014 Chevrolet Silverado?

- OBDII code P189C indicates an issue with the Transmission Range Command Message Performance in the vehicle.

3. What are some possible causes of OBDII code P189C in a 2014 Chevrolet Silverado?

- Possible causes may include faulty transmission range sensor, wiring issues, communication errors within the transmission control module, or software glitches.

4. How can I diagnose the OBDII code P189C in my 2014 Chevrolet Silverado?

- Diagnosing the code typically involves using a scan tool to retrieve the trouble codes, checking the transmission range sensor, inspecting wiring connections, and testing the transmission control module for proper function.

5. Can I continue driving my 2014 Chevrolet Silverado with OBDII code P189C?

- It is not recommended to continue driving the vehicle with this code as it can lead to further transmission issues and potential safety hazards.

6. How can I repair OBDII code P189C in my 2014 Chevrolet Silverado?

- Repair options may include replacing the faulty transmission range sensor, repairing any damaged wiring, reprogramming the transmission control module, or addressing any communication issues.

7. Is it possible to reset the OBDII code P189C in a 2014 Chevrolet Silverado without repairing the issue?

- While clearing the code may temporarily turn off the check engine light, it is important to address the underlying cause to prevent further damage to the transmission.

8. Can a DIY enthusiast fix OBDII code P189C in a 2014 Chevrolet Silverado?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address simpler causes of the code such as checking and cleaning wiring connections.

9. How long does it typically take to repair OBDII code P189C in a 2014 Chevrolet Silverado?

- The repair time can vary depending on the exact cause of the code, but it may take a few hours to a full day to diagnose and fix the issue.

10. Are there any recalls or technical service bulletins related to OBDII code P189C in a 2014 Chevrolet Silverado?

- It is advisable to check with a Chevrolet dealership or online resources for any existing recalls or technical service bulletins related to this specific OBDII code in the 2014 Chevrolet Silverado.