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For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 Rainier 🢒 Bulletins 🢒 SIR Light On DTC B3855 - keywords air bag code connector lamp rollover SDM sensor terminal wire

SIR Light On DTC B3855 - keywords air bag code connector lamp rollover SDM sensor terminal wire

Subject:SIR Light on DTC B3855

Models:2005-2006 Buick Rainier
2005-2006 Cadillac SRX
2005-2006 Chevrolet Trailblazer, Trailblazer EXT
2005-2006 GMC Envoy, Envoy Denali, Envoy XL, Envoy XUV
2006 Hummer H3
2005-2006 Saab 9-7x
2005-2006 Saturn VUE


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

The SIR/Air bag light is on, with DTC B3855 set in the SDM. This can be caused by a intermittent pin connection at the Rollover Sensor (ROS) harness connector.

Recommendation/Instructions:

Check all the pin connections at the Rollover Sensor (ROS) harness connector. When probing female 0.64 terminals, it is important to use the correct adapter. The proper adapter for 0.64 terminals is the J 35616-64B which has a tin terminal and a blue wire between the base and tip. Failure to use the proper test adapter may result in damage to the terminal being tested and improper diagnosis. If a intermittent pin connection is found, replace the terminal using terminal part number 8100-3427 this can be found in tray 22.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.