B0164Air Bag In-Vehicle Temperature Sensor Circuit
- Generic OBD-II code · Body
- How the car detects it
- B0164 is not listed in any publicly available J2012 table. General Motors does use the number: bulletin PIP5094 from 2013 lists it as a service information keyword, but no public GM text gives its wording. The airbag meaning in the title is not documented by any carmaker. GM's neighbouring code B0163 is the passenger compartment sensor of the HVAC system, which makes a climate control meaning more likely than an airbag one. Temperature sensing for airbags does exist: Delphi's US7000946B2 adjusts restraint output to the measured inflator temperature, using the control chip's own die temperature as a guide, and Bosch's US5697639A puts a temperature sensor inside the airbag module. Treat any B0164 by the make's own definition.
- What you may notice
- Airbag or climate warning, depending on which module stored the code
- Climate control may run on a substitute cabin temperature
- Safety note: if the airbag module is involved, work only with the battery disconnected and the wait time observed
- Likely causes
- PossibleTemperature sensor or its wiring open or shorted
- PossibleGM: fault in the climate control sensor group around B0163 rather than the airbag
- RareInternal temperature measurement of the control module faulty
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €50 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.