U1148
Additional CAN-C ECU Detected
U1148 is an OBD-II diagnostic trouble code meaning: Additional CAN-C ECU Detected. Common causes: incorrect connection of additional equipment, faulty control unit in the can-c network. Estimated repair cost: ~$167.
Symptoms
- Incorrect operation of the vehicle's electronic systems
- Occurrence of other CAN bus errors
- Problems starting the engine
- Unstable operation of the dashboard
Causes
- Incorrect connection of additional equipment
- Faulty control unit in the CAN-C network
- Changing the network configuration after repair
- Damage to CAN bus wiring
How to Fix
- Check the CAN-C network configuration for compliance with factory settings
- Disable all non-standard devices connected to the CAN bus
- Check the serviceability of all control units in the network
- Check the integrity of the CAN bus wiring
- Reset the error and check for its reappearance
Related codes
FAQ
What does the U1148 code mean?
U1148 is an OBD-II diagnostic trouble code that indicates: Additional CAN-C ECU Detected
What causes a U1148 error code?
The most common causes of U1148 include: Incorrect connection of additional equipment; Faulty control unit in the CAN-C network; Changing the network configuration after repair; Damage to CAN bus wiring.
How do I fix a U1148 diagnostic trouble code?
To fix U1148: Check the CAN-C network configuration for compliance with factory settings. Disable all non-standard devices connected to the CAN bus. Check the serviceability of all control units in the network. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1148?
Yes, but get it checked soon
How much does it cost to fix U1148?
The estimated repair cost for U1148 is ~$167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat