U18D2
Lost Communication With Transmission Range Selector Control Module On Powertrain Sensor CAN Bus
U18D2 is an OBD-II diagnostic trouble code meaning: Lost Communication With Transmission Range Selector Control Module On Powertrain Sensor CAN Bus. Common causes: broken or damaged can bus wires, transmission range selector module malfunction. Estimated repair cost: $56–167.
Symptoms
- Incorrect transmission operation
- Delayed gear shifting
- Check Engine Light Is On
- The car goes into emergency mode
- Power Loss
Causes
- Broken or damaged CAN bus wires
- Transmission Range Selector Module Malfunction
- Module power problems
- Short circuit in CAN circuit
- Engine control unit malfunction
How to Fix
- Check the integrity of the CAN bus wires
- Check the power and ground of the range selector module
- Check the resistance on the CAN bus
- Scan other modules for communication errors
- Replace range selector module if necessary
Related codes
FAQ
What does the U18D2 code mean?
U18D2 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Transmission Range Selector Control Module On Powertrain Sensor CAN Bus
What causes a U18D2 error code?
The most common causes of U18D2 include: Broken or damaged CAN bus wires; Transmission Range Selector Module Malfunction; Module power problems; Short circuit in CAN circuit.
How do I fix a U18D2 diagnostic trouble code?
To fix U18D2: Check the integrity of the CAN bus wires. Check the power and ground of the range selector module. Check the resistance on the CAN bus. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U18D2?
Limited driving only, diagnose soon
How much does it cost to fix U18D2?
The estimated repair cost for U18D2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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