Network, generic

U0153 Lost Communication With Side Restraints Control Module Right

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modeNo

U0153 means the airbag system no longer hears from the separate control module for the right-side restraints. Some vehicles split the job: a central airbag unit plus side units that evaluate side impact sensors and fire side or curtain bags. When the right unit's periodic messages stop, the receiving modules store U0153, in the same way GM's U0100-U02FF logic treats any silent node. No manufacturer documents U0153 publicly; GM's list stops at U0151 for its single sensing and diagnostic module. U0152 is the left-hand twin, U0151 the main restraints module. The airbag warning lamp comes on and side protection on the right may be unavailable; no MIL. Work on airbag components belongs in a workshop.

Likely causes

Loose or corroded connector at the right side module (B-pillar or under the seat)

Power or ground of the right side module missing

Bus wiring damaged after seat or trim work

Right side restraints module faulty

Symptoms

Airbag warning lamp on
Right side or curtain airbag may not deploy
Scan tool cannot reach the right side module

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€100–900

Time1–3 h

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

Parts involved

side restraints module rightcan bus wiring

Related codes

U0151 U0152 U0154

References: saabwisonline.com, bosch-mobility.com, en.wikipedia.org.