U112C
Lost Communication With Transfer Case Switch Bank Module
U112C is an OBD-II diagnostic trouble code meaning: Lost Communication With Transfer Case Switch Bank Module. Common causes: open or short circuit in the can bus, transfer case control module malfunction. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Disabling the all-wheel drive system
- Inability to switch transfer case modes
- Occurrence of other related CAN bus errors
- Unstable transmission operation
Causes
- Open or short circuit in the CAN bus
- Transfer case control module malfunction
- Problems with module power supply (blown fuse)
- Corroded or damaged connectors
- Wiring harness damage
How to Fix
- Check fuses associated with the module
- Inspect connectors and wiring harness for damage
- Check the integrity of the CAN bus with a multimeter
- Scan the transfer case module for errors
- If necessary, replace the control module
Related codes
FAQ
What does the U112C code mean?
U112C is an OBD-II diagnostic trouble code that indicates: Lost Communication With Transfer Case Switch Bank Module
What causes a U112C error code?
The most common causes of U112C include: Open or short circuit in the CAN bus; Transfer case control module malfunction; Problems with module power supply (blown fuse); Corroded or damaged connectors.
How do I fix a U112C diagnostic trouble code?
To fix U112C: Check fuses associated with the module. Inspect connectors and wiring harness for damage. Check the integrity of the CAN bus with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U112C?
Limited driving only, diagnose soon
How much does it cost to fix U112C?
The estimated repair cost for U112C is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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