AutoCodes – Chrysler – U1503 Chrysler

U1503 Chrysler Code - Implausible Message Data Length Received From FCM

Quick Answer

The Diagnostic Trouble Code (DTC) will set when the Anti-Lock Brake Module detects an incorrect Controller Area Network (CAN) message from the Totally Integrated Power Module (TIPM). Common causes include Faulty Totally Integrated Power Module (TIPM), Totally Integrated Power Module harness is open or shorted, Totally Integrated Power 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
U1503 Chrysler indicates Implausible Message Data Length Received From FCM.
Common causes
Common causes include Faulty Totally Integrated Power Module (TIPM), Totally Integrated Power Module harness is open or shorted, Totally Integrated Power 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 661
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 U1503 Chrysler Description

The Diagnostic Trouble Code (DTC) will set when the Anti-Lock Brake Module detects an incorrect Controller Area Network (CAN) message from the Totally Integrated Power Module (TIPM).
OBDII Code U1503 Chrysler - Implausible Message Data Length Received From FCM - AutoCodes.com
U1503 Chrysler Code - Implausible Message Data Length Received From FCM

What are the Possible Causes of the DTC U1503 Chrysler?

  • Faulty Totally Integrated Power Module (TIPM)
  • Totally Integrated Power Module harness is open or shorted
  • Totally Integrated Power Module circuit poor electrical connection
  • Faulty Anti-Lock Brakes (ABS) Module

How to Fix the DTC U1503 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 U1503 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 U1503 Chrysler code?

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Need Help with the Code?

Get the U1503 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 U1503 Chrysler Code

1. What are the common symptoms of OBDII code U1503 in a Chrysler vehicle?

- Common symptoms include issues with the vehicle's electronic control systems, such as dashboard warning lights, erratic behavior of components, and potential drivability issues.

2. What does the OBDII code U1503 Chrysler mean?

- The code U1503 indicates an implausible message data length received from the FCM (Front Control Module) in Chrysler vehicles.

3. What are the possible causes of OBDII code U1503 in a Chrysler vehicle?

- Possible causes include faulty wiring or connections, a malfunctioning FCM, software issues, or a communication error between modules in the vehicle.

4. How do I diagnose OBDII code U1503 in my Chrysler?

- Diagnosis typically involves using a scan tool to read the code, checking for other related codes, inspecting wiring and connections, and testing the FCM and related components.

5. Can I drive my Chrysler with OBDII code U1503?

- It is not recommended to drive the vehicle with unresolved OBDII code U1503, as it may lead to further electrical system issues or drivability problems.

6. How can I repair OBDII code U1503 in my Chrysler?

- Repair steps may include checking and repairing wiring connections, replacing the Front Control Module if necessary, updating software, and clearing the code with a scan tool.

7. Is it safe to clear the OBDII code U1503 without fixing the underlying issue?

- Clearing the code without addressing the root cause may temporarily turn off the warning light, but the issue will likely reoccur, potentially causing further problems.

8. Can a DIY enthusiast fix OBDII code U1503 in a Chrysler?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to address simpler causes like loose connections, but complex issues may require professional diagnosis and repair.

9. Does OBDII code U1503 affect the vehicle's emissions or performance?

- While the code itself may not directly impact emissions, unresolved issues related to U1503 can affect the vehicle's performance and potentially lead to increased emissions over time.

10. How much does it cost to repair OBDII code U1503 in a Chrysler at a dealership or repair shop?

- Repair costs can vary depending on the specific cause of the code, but expect to pay for diagnostics, parts, and labor, potentially ranging from a few hundred to a few thousand dollars.

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