AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Generic - P138A

P138A Code - Glow Plug Control Module Control Circuit Range/Performance

- Code Popularity: 2,475 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P138A?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Glow Plug Control Module
  • Glow Plug Control Module harness is open or shorted
  • Glow Plug Control Module circuit poor electrical connection
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC P138A?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for P138A Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P138A code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P138A Description

The Engine Control Module (ECM) monitors the Glow Plug Control Module. The ECM sets the OBDII code when Glow Plug Control Module is not working properly.

OBDII Code P138A - Glow Plug Control Module Control Circuit Range/Performance - AutoCodes.com
P138A Code - Glow Plug Control Module Control Circuit Range/Performance

Need More Information on the Code?

Need more information on how to fix the P138A code? Get Access to Factory Service Manuals

Information for Specific Makes

  • P138A Ford Glow Plug Control Module Control Circuit Range/Performance

Need Help with the Code?

Get the P138A code diagnosed by a professional: Find a repair shop in your area

Code P138A comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P138A code? Have you replaced any parts?
Any information is appreciated. Thanks