U1220
XM Serial Communication
U1220 is an OBD-II diagnostic trouble code meaning: XM Serial Communication. Common causes: broken or damaged wires in the communication circuit, poor contact in connectors. Estimated repair cost: $17–89.
Symptoms
- Check Engine light comes on
- There may be malfunctions in the multimedia system
- Loss of communication between modules
- Incorrect operation of other vehicle systems
Causes
- Broken or damaged wires in the communication circuit
- Poor contact in connectors
- XM module failure
- Module power problems
- Short circuit in the circuit
How to Fix
- Check the integrity of the wires in the XM communication circuit
- Inspect and clean the contacts in the connectors
- Check XM Module Power
- Scan other modules for errors
- Replace XM module if necessary
Related codes
FAQ
What does the U1220 code mean?
U1220 is an OBD-II diagnostic trouble code that indicates: XM Serial Communication
What causes a U1220 error code?
The most common causes of U1220 include: Broken or damaged wires in the communication circuit; Poor contact in connectors; XM module failure; Module power problems.
How do I fix a U1220 diagnostic trouble code?
To fix U1220: Check the integrity of the wires in the XM communication circuit. Inspect and clean the contacts in the connectors. Check XM Module Power. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1220?
Yes, but get it checked soon
How much does it cost to fix U1220?
The estimated repair cost for U1220 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat