Engine-CodesChrysler – P0702 Chrysler

P0702 Chrysler Code - Transmission Control Module

Quick Answer

The P0702 code for Chrysler vehicles indicates a problem with the Transmission Control Module (TCM). Common causes include Faulty transmission sensors, Damaged wiring or connectors between the TCM and transmission sensors, Malfunctioning TCM. 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
P0702 Chrysler indicates Transmission Control Module.
Common causes
Common causes include Faulty transmission sensors, Damaged wiring or connectors between the TCM and transmission sensors, Malfunctioning TCM.
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.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0702 Chrysler Description

The P0702 code for Chrysler vehicles indicates a problem with the Transmission Control Module (TCM). The TCM is responsible for controlling various aspects of the transmission system, such as shifting points, torque converter lockup, and more. When this code is triggered, it typically means that the TCM is not receiving the correct signals from the transmission sensors, leading to improper operation of the transmission.

OBDII Code P0702 Chrysler - Transmission Control Module
P0702 Chrysler Code - Transmission Control Module

Common Causes of P0702 Chrysler

  1. Faulty transmission sensors
  2. Damaged wiring or connectors between the TCM and transmission sensors
  3. Malfunctioning TCM
  4. Low transmission fluid levels
  5. Electrical issues within the transmission system

Symptoms of P0702 Chrysler

  1. Harsh or delayed shifting
  2. Slipping gears
  3. Inability to shift into certain gears
  4. Transmission stuck in limp mode
  5. Illumination of the Check Engine Light

How to Fix P0702 Chrysler

  1. Diagnose the exact cause of the issue by performing a thorough inspection of the transmission system and TCM.
  2. Check and replace any faulty transmission sensors or wiring connections.
  3. Test the TCM for proper functionality and replace if necessary.
  4. Ensure proper transmission fluid levels and quality.
  5. Clear the trouble codes and test drive the vehicle to confirm the issue has been resolved.

Cost to Fix P0702 Chrysler

The typical repair costs for addressing a P0702 code on a Chrysler vehicle can range from $200 to $800, depending on the specific cause of the issue and the extent of the repairs needed. This estimate includes parts and labor. Keep in mind that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

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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 P0702 Chrysler Code

1. What does the OBDII code P0702 for Chrysler indicate?

The P0702 code specifically points to a fault in the Transmission Control Module (TCM) communication circuit.

2. What are common symptoms associated with the P0702 code?

Common symptoms include issues with shifting gears, harsh shifting, delayed engagement, and in some cases, the vehicle may not shift at all.

3. What are the possible causes of the P0702 code in a Chrysler vehicle?

The P0702 code in a Chrysler vehicle can be triggered by a faulty TCM, damaged wiring or connectors in the TCM circuit, or a malfunctioning transmission range sensor.

4. How can I diagnose the P0702 code in my Chrysler vehicle?

Diagnosing the P0702 code typically involves using a professional OBDII scanner to read the code, checking the TCM and transmission range sensor for any visible damage, and testing the wiring and connectors for continuity.

5. Can I continue driving my Chrysler if the P0702 code is triggered?

It is not recommended to continue driving your Chrysler if the P0702 code is triggered, as it can lead to further damage to the transmission system.

6. How can I repair the P0702 code in my Chrysler vehicle?

Repairing the P0702 code may involve replacing the TCM, repairing or replacing damaged wiring or connectors, or recalibrating the transmission range sensor.

7. Is it possible to reset the P0702 code without fixing the underlying issue?

While you can clear the code with an OBDII scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring.

8. Can a DIY enthusiast fix the P0702 code issue in a Chrysler vehicle?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to address the P0702 code by replacing the TCM, checking and repairing wiring, or replacing the transmission range sensor.

9. How much does it typically cost to repair the P0702 code in a Chrysler vehicle?

The cost of repairing the P0702 code in a Chrysler vehicle can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. How can I prevent the P0702 code from occurring in my Chrysler vehicle in the future?

Regular maintenance, including checking the transmission system, TCM, and wiring for any signs of wear or damage, can help prevent the occurrence of the P0702 code in your Chrysler vehicle.

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