AutoCodes – Chrysler – P0702 Chrysler

P0702 Chrysler Code - Transmission Control Module

Quick Answer

This Diagnostic Trouble Code (DTC) is set by the Powertrain Control Module (PCM) when you have a problem with the Transmission Control Module (TCM). 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: P0702 Chrysler indicates Transmission Control Module.
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 7,962

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 23, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0702 Chrysler Description

This Diagnostic Trouble Code (DTC) is set by the Powertrain Control Module (PCM) when you have a problem with the Transmission Control Module (TCM). This could be the TCM itself or a problem with the wiring harness to the module.

OBDII Code P0702 Chrysler - Transmission Control Module - AutoCodes.com — P0702 Chrysler Code - Transmission Control Module

What does this mean?

What are the Possible Causes of the DTC P0702 Chrysler?

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 P0702 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 P0702 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.

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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.