U0101:87 Lexus 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 Lexus 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 Lexus Description
What are the Possible Causes of the DTC U0101:87 Lexus?
- 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 Lexus?
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 Lexus 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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Frequently Asked Questions about U0101:87 Lexus Code
1. What are the common symptoms of OBDII code U0101:87 in a Lexus indicating a lost communication with the Transmission Control Module (TCM) missing message?
- Common symptoms include issues with shifting gears, transmission slippage, harsh shifting, and the transmission staying in one gear.
2. What are the potential causes of the U0101:87 code in a Lexus related to a lost communication with the TCM missing message?
- Possible causes include a faulty TCM, damaged wiring or connectors, a defective transmission control module, or a communication network issue.
3. How can I diagnose the U0101:87 code in my Lexus indicating a lost communication with the TCM missing message?
- Diagnosing this code typically involves checking the TCM for proper power and ground, inspecting wiring for damage, and using a scan tool to communicate with the TCM.
4. Is it safe to continue driving my Lexus with the U0101:87 code related to a lost communication with the TCM missing message?
- It is not recommended to drive the vehicle with this code present, as it can lead to further transmission damage or unsafe driving conditions.
5. Can I reset the U0101:87 code in my Lexus to see if it comes back?
- While clearing the code may temporarily turn off the check engine light, the underlying issue causing the code will need to be addressed to prevent it from returning.
6. How much does it typically cost to repair the U0101:87 code in a Lexus due to a lost communication with the TCM missing message?
- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the TCM, repairing wiring, or addressing other related components.
7. Are there any DIY repair tips for addressing the U0101:87 code in a Lexus related to a lost communication with the TCM missing message?
- DIY repair may be challenging for this code, as it often requires advanced diagnostic tools and knowledge. It is recommended to consult a professional mechanic for proper diagnosis and repair.
8. Can a software update fix the U0101:87 code in a Lexus indicating a lost communication with the TCM missing message?
- In some cases, a software update from the manufacturer can resolve communication issues between modules, but it is best to consult with a Lexus dealership or experienced technician for guidance.
9. Will the U0101:87 code in a Lexus reset itself over time?
- The code may reset if the underlying issue is intermittent, but it is important to diagnose and repair the problem to prevent ongoing transmission issues.
10. Is the U0101:87 code in a Lexus a common issue, or is it specific to certain models or years?
- This code can occur in various Lexus models and years, typically indicating a communication problem between the TCM and other control modules.
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