U18D0
Lost Communication With Active Safety Control Module 2 On High Speed CAN Bus
U18D0 is an OBD-II diagnostic trouble code meaning: Lost Communication With Active Safety Control Module 2 On High Speed CAN Bus. Common causes: open or short circuit in the can bus, malfunction of active safety module no. 2. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- ABS/ESP indicators may come on
- Disabling active safety systems
- Errors in other related systems
- Problems with cruise control
Causes
- Open or short circuit in the CAN bus
- Malfunction of active safety module No. 2
- Module power problems
- Corrosion or oxidation of contacts
- Interference in the CAN network
How to Fix
- Check the integrity of the CAN bus and connections
- Diagnose the power supply of the security module
- Check the resistance of CAN lines
- Scan all modules for other errors
- Repair only from an authorized dealer
Related codes
FAQ
What does the U18D0 code mean?
U18D0 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Active Safety Control Module 2 On High Speed CAN Bus
What causes a U18D0 error code?
The most common causes of U18D0 include: Open or short circuit in the CAN bus; Malfunction of active safety module No. 2; Module power problems; Corrosion or oxidation of contacts.
How do I fix a U18D0 diagnostic trouble code?
To fix U18D0: Check the integrity of the CAN bus and connections. Diagnose the power supply of the security module. Check the resistance of CAN lines. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U18D0?
Do not drive — repair immediately
How much does it cost to fix U18D0?
The estimated repair cost for U18D0 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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