Network, generic

U0461 Invalid Data Received From Audible Alert Control Module

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modeNo

The audible alert control module produces warning chimes, for an unfastened belt, an open door or lights left on; in GM's list of U codes for the 2011 Saab 9-5 the matching node is called chime alarm control module. U0461 is stored when a partner, often the body controller or instrument cluster that requests or confirms the tones, receives status frames from this module that fail plausibility; U0160 is complete silence. No manufacturer documents U0461 publicly. The function has a legal side: FMVSS 208 requires an audible belt reminder lasting between 4 and 8 seconds, so a disturbed chime unit can mean warnings that never sound or keep sounding. Because many current cars generate these tones in the cluster or radio, only some models have a dedicated unit. U0440 concerns the outside pedestrian sound, a different device. No MIL.

Likely causes

Software of the chime module or requesting unit not matching

Loose plug or weak supply of the chime module

Internal fault of the audible alert module

Symptoms

Warning chimes missing, wrong or sounding constantly
Belt reminder without sound

Repair estimate

DifficultyMediumWorkshop job

Parts and labour€40–500

Time0.3–1.5 h

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

Parts involved

audible alert module

Related codes

U0160 U0440

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