AutoCodes – Chrysler – U1502 Chrysler

U1502 Chrysler Code - Implausible Message Data Length Received From TCM

Quick Answer

The Diagnostic Trouble Code (DTC) will set if the Anti-Lock Brakes Module detects bus messages from the Transmission Control Module (TCM) are of improper data length. 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
U1502 Chrysler indicates Implausible Message Data Length Received From TCM.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 930
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 31, 2020
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Code U1502 Chrysler Description

The Diagnostic Trouble Code (DTC) will set if the Anti-Lock Brakes Module detects bus messages from the Transmission Control Module (TCM) are of improper data length.
OBDII Code U1502 Chrysler - Implausible Message Data Length Received From TCM - AutoCodes.com
U1502 Chrysler Code - Implausible Message Data Length Received From TCM

What are the Possible Causes of the DTC U1502 Chrysler?

  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module harness is open or shorted
  • Transmission Control Module circuit poor electrical connection
  • Faulty Anti-Lock Brakes (ABS) Module

How to Fix the DTC U1502 Chrysler?

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 U1502 Chrysler 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 U1502 Chrysler code?

Need more information on how to fix the U1502 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1502 Chrysler code diagnosed by a professional: Find a repair shop in your area

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 U1502 Chrysler Code

1. What are the common symptoms of OBDII code U1502 in a Chrysler vehicle?

- Common symptoms include erratic shifting, transmission slipping, illuminated Check Engine Light, and potential loss of communication with the transmission control module (TCM).

2. What could be the possible causes of OBDII code U1502 in a Chrysler vehicle?

- The code U1502 can be triggered by issues such as a faulty TCM, damaged wiring or connectors in the communication network, software glitches, or a defective CAN bus system.

3. How can I diagnose OBDII code U1502 in my Chrysler vehicle?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, checking for other related codes, inspecting the TCM and its connections, and testing the communication network for faults.

4. Is it safe to continue driving with OBDII code U1502 present in my Chrysler vehicle?

- It is generally not recommended to drive with this code present, as it can lead to transmission issues and potentially unsafe driving conditions. It is advisable to address the problem promptly.

5. What are some repair tips for fixing OBDII code U1502 in a Chrysler vehicle?

- Repair tips may include checking and repairing any damaged wiring or connectors, updating TCM software if necessary, replacing a faulty TCM, or addressing any underlying CAN bus system problems.

6. Can a DIY enthusiast fix OBDII code U1502 in a Chrysler vehicle, or should it be done by a professional mechanic?

- While some basic checks like inspecting connections can be done by a DIY enthusiast, resolving complex issues related to the TCM or communication network may require the expertise of a professional mechanic.

7. How much can I expect to pay to fix OBDII code U1502 in a Chrysler vehicle?

- The cost of fixing this code can vary depending on the underlying issue. It may range from a simple wiring repair costing a couple of hundred dollars to a TCM replacement or software update costing several hundred to over a thousand dollars.

8. Will resetting the OBDII code U1502 in my Chrysler vehicle make it go away permanently?

- Simply resetting the code without addressing the root cause will not make it disappear permanently. The issue causing the code needs to be diagnosed and fixed to prevent it from reoccurring.

9. Can extreme weather conditions affect the occurrence of OBDII code U1502 in a Chrysler vehicle?

- Yes, extreme temperatures or moisture can potentially impact the electrical connections and components involved in the communication network, leading to the triggering of code U1502.

10. Are there any recalls or technical service bulletins related to OBDII code U1502 for Chrysler vehicles?

- It's advisable to check with the nearest Chrysler dealership or online resources for any recalls or technical service bulletins related to code U1502, as manufacturers sometimes release updates or remedies for such issues.

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