U0253
Lost Communication With Accessory Protocol Interface Module
U0253 is an OBD-II diagnostic trouble code meaning: Lost Communication With Accessory Protocol Interface Module. Common causes: open or short circuit in the can bus, interface module power supply problems. Estimated repair cost: $56–278.
Symptoms
- Inoperative additional systems (audio, navigation, etc.)
- Malfunction indicator light comes on
- Problems with the multimedia system
- Intermittent operation of additional equipment
Causes
- Open or short circuit in the CAN bus
- Interface module power supply problems
- Malfunction of the interface module itself
- Oxidation of contacts in connectors
- Problems with the module software
How to Fix
- Check the integrity of the CAN bus
- Check the power supply and ground of the module
- Inspect and clean connector contacts
- Carry out diagnostics of the interface module
- If necessary, replace the interface module
Related codes
Error U0253 by Vehicle Brand
FAQ
What does the U0253 code mean?
U0253 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Accessory Protocol Interface Module
What causes a U0253 error code?
The most common causes of U0253 include: Open or short circuit in the CAN bus; Interface module power supply problems; Malfunction of the interface module itself; Oxidation of contacts in connectors.
How do I fix a U0253 diagnostic trouble code?
To fix U0253: Check the integrity of the CAN bus. Check the power supply and ground of the module. Inspect and clean connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0253?
Yes, but get it checked soon
How much does it cost to fix U0253?
The estimated repair cost for U0253 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat