Network, generic

U0160 Lost Communication With Audible Alert Control Module

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

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.

Likely causes

Chime module fuse blown or ground loose
Connector or bus line behind the dashboard damaged
Vehicle configured for a separate chime module that is not fitted
Audible alert module internally faulty

Symptoms

  • No chime for open door, belt or lights
  • Chime sounds continuously or at wrong times
  • Code stored in the BCM or cluster

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€30–500
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

audible alert modulecan bus wiring

Related codes

U0461U0155U0140U013F

References: saabwisonline.com, saabwisonline.com, law.cornell.edu.