DTC U1102 MITSUBISHI

Possible Causes of U1102 Error on Mitsubishi:

• Short or break in the CAN bus wiring - due to moisture, corrosion, or mechanical damage.
• ABS or TCS module failure - the module itself may fail or temporarily freeze.
• Power issues - weak battery or unstable voltage can lead to communication failures.
• Error after battery replacement - if the battery was recently removed, data exchange between modules may have been disrupted.
• ABS sensor failure - a damaged or contaminated sensor can lead to a loss of communication.

How to Fix U1102 Error on Mitsubishi?

• Turn off the ignition and wait 10-15 minutes - sometimes the system will restore the connection by itself.
• Check the battery - if it's discharged or old, consider recharging or replacing it.
• Inspect the CAN bus wiring, connectors, and fuses - look for corrosion or damage.
• Reset the error with an OBD2 scanner - if the error doesn't return, it may have been a temporary glitch.
• Check the ABS sensors - ensure they are not contaminated and are working correctly.
• If nothing helps - diagnostic with a specialist to check the ABS/TCS module.

Conclusion

Error U1102 on Mitsubishi is a communication loss with the ABS or traction control system over the CAN bus. Most often, the problem is with the wiring, weak battery, or control unit failure. Start with a simple solution - reset the error, check the battery, and inspect the wiring.