U0160 code meaning
Lost Communication With Audible Alert Control Module
What U0160 means
U0160 is stored when the audible alert module, the unit that produces chimes for an open door, unfastened belt, key left in or lights on, drops off the bus. GM uses it: the Saab 9-5 (2011) U-code list calls the unit Chime Alarm Control Module, and by GM's generic procedure the code appears once the chime unit's cyclic status frame stays away while the supply is within 9 to 16 V. Many newer vehicles let the instrument cluster or the radio play these tones, so a separate module exists only on some models. U0461 covers implausible data from this module; U013F concerns the external pedestrian sound generator, a different device. Warning tones fall silent or sound constantly; no MIL.
U0160 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0160
- No chime for open door, belt or lights
- Chime sounds continuously or at wrong times
- Code stored in the BCM or cluster
Common causes of U0160
- Most likelyChime module fuse blown or ground loose
- PossibleConnector or bus line behind the dashboard damaged
- Less likelyVehicle configured for a separate chime module that is not fitted
- Less likelyAudible alert module internally faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Audible alert moduleCAN bus wiring
What each part of U0160 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 60 | The exact fault in that area. |
What to do next
- Note U0160 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0160
What does U0160 mean?
U0160 means "Lost Communication With Audible Alert Control Module". U0160 is stored when the audible alert module, the unit that produces chimes for an open door, unfastened belt, key left in or lights on, drops off the bus. It is a generic code, so it means the same on every make.
Is it safe to drive with U0160?
U0160 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0160 fail an emissions test?
U0160 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0160 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. This is a job for a workshop.
Will U0160 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.