U0101:87 Code - Lost Communication With Transmission Control Module Missing Message
Quick Answer
The engine control unit and the transmission control unit are located inside the Engine Control Module (ECM). Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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
- U0101:87 indicates Lost Communication With Transmission Control Module Missing Message.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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 U0101:87 Description
What are the Possible Causes of the DTC U0101:87?
- Faulty Engine Control Module (ECM)
- Engine Control Module (ECM) harness is open or shorted
- Engine Control Module (ECM) circuit poor electrical connection
How to Fix the DTC U0101:87?
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 U0101:87 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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Get the U0101:87 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- U0101:87 Lexus — Lost Communication With Transmission Control Module Missing Message
- U0101:87 Toyota — Lost Communication With Transmission Control Module Missing Message
Frequently Asked Questions about U0101:87 Code
1. What are the common symptoms of OBDII code U0101:87 - Lost Communication With Transmission Control Module Missing Message?
- Common symptoms include the transmission shifting erratically, the vehicle going into limp mode, and the dashboard displaying warning lights related to the transmission system.
2. What are the possible causes of OBDII code U0101:87?
- The code U0101:87 can be triggered by issues such as a faulty transmission control module, damaged wiring connections, a malfunctioning CAN bus system, or a software glitch in the vehicle's computer system.
3. How can I diagnose the cause of OBDII code U0101:87?
- Diagnosing the cause of U0101:87 may involve using a diagnostic scanner to retrieve the code, checking the transmission control module for any physical damage, inspecting the wiring for loose connections or fraying, and testing the CAN bus system for proper functionality.
4. What are some repair tips for resolving OBDII code U0101:87?
- Repair tips may include repairing or replacing damaged wiring connections, resetting the transmission control module, updating the vehicle's software, or replacing the transmission control module if it is faulty.
5. Can I continue driving my vehicle with OBDII code U0101:87 present?
- It is not recommended to drive your vehicle with U0101:87 as it can lead to further transmission issues and potential safety hazards. It's best to address the problem promptly to avoid any long-term damage.
6. How much does it typically cost to repair OBDII code U0101:87?
- The cost of repairing U0101:87 can vary depending on the root cause of the issue. Simple fixes like repairing wiring connections may be relatively inexpensive, while replacing a faulty transmission control module can be more costly.
7. Will resetting the trouble code make OBDII code U0101:87 go away permanently?
- Resetting the trouble code may temporarily clear the warning lights, but if the underlying issue causing U0101:87 is not addressed, the code is likely to reappear once the system detects the problem again.
8. Are there any recalls or technical service bulletins related to OBDII code U0101:87?
- It's recommended to check with your vehicle manufacturer or authorized dealership for any recalls or technical service bulletins related to U0101:87, as they may provide valuable information or potential solutions for the issue.
9. Can a DIY enthusiast fix OBDII code U0101:87 on their own?
- Depending on the specific cause, a DIY enthusiast with the necessary tools and knowledge may be able to diagnose and repair U0101:87. However, complex issues like internal transmission control module failures may require professional expertise.
10. How long does it typically take to repair OBDII code U0101:87?
- The repair time for U0101:87 can vary based on the complexity of the issue and the availability of parts. Simple fixes may take a few hours, while more involved repairs could require a day or more, especially if parts need to be ordered.
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