P0702 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 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.
Code P0702 Description
What are the Possible Causes of the DTC P0702?
- 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?
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 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 P0702 code?
Need more information on how to fix the P0702 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0702 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P0702 Buick — Transaxle Control System Low Voltage
- P0702 Cadillac — Transaxle Control System Low Voltage
- P0702 Chevrolet — Transaxle Control System Low Voltage
- P0702 Chrysler — Transmission Control Module
- P0702 Dodge — Transmission Control Module
- P0702 GMC — Transaxle Control System Low Voltage
- P0702 Jeep — Transmission Control Module
- P0702 Mercedes-Benz — Transmission Control Module
- P0702 Mitsubishi — Internal Control Module Monitoring Processor System
- P0702 Pontiac — Transaxle Control System Low Voltage
- P0702 Saturn — Transaxle Control System Low Voltage
- P0702 Volkswagen — Transmission Control System Electrical
Frequently Asked Questions about P0702 Code
1. What is OBDII code P0702 related to the Transmission Control Module?
Code P0702 indicates a transmission control module electrical fault.
2. What are the common symptoms of OBDII code P0702?
Common symptoms include issues with shifting gears, harsh shifting, failure to shift, and the transmission going into limp mode.
3. What are the possible causes of OBDII code P0702?
Potential causes of code P0702 include a faulty transmission control module, damaged wiring or connectors, low transmission fluid levels, or a defective transmission range sensor.
4. How can I diagnose OBDII code P0702?
Diagnosing code P0702 involves using an OBDII scanner to retrieve the code, inspecting the transmission control module and related wiring, and testing the transmission range sensor for proper operation.
5. Can OBDII code P0702 be fixed at home?
Depending on the exact cause of the code, some DIY enthusiasts may be able to address issues like faulty wiring or connectors. However, diagnosing and repairing internal TCM faults may require professional expertise.
6. Is it safe to drive with OBDII code P0702 present?
Continuing to drive with code P0702 can potentially cause further damage to the transmission system. It is recommended to address the issue promptly to avoid costly repairs.
7. How much does it typically cost to repair OBDII code P0702?
The cost of repairing code P0702 can vary widely depending on the underlying cause. It is advisable to obtain quotes from reputable repair shops for an accurate estimate.
8. Can resetting the OBDII system clear code P0702?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It's best to diagnose and fix the root cause of the problem.
9. Is OBDII code P0702 specific to a certain car make or model?
Code P0702 can appear in various vehicle makes and models, particularly those equipped with an OBDII system and a transmission control module.
10. How can I prevent OBDII code P0702 from occurring?
Routine maintenance, such as checking transmission fluid levels and ensuring proper wiring connections, can help prevent code P0702. Additionally, addressing any transmission issues promptly can prevent further complications.
Discuss the causes and fixes for P0702 OBDII Code
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Any other symptoms? I have been checking the factory service manual and I can't find any information on the P0702 code. Please double check the code number.
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I have checked the factory service manual and I can't find any information on the P0702 code. Please double check the code number.
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