Code Definition

B0110 — Side impact module LHR high Circuit below 2.4 volts

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B0110

B0110 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B0110 is stored, the module has detected a signal or supply voltage lower than the expected operating range; and a signal or supply voltage higher than the expected operating range.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

Because B0110 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

DTC B0110 sets when the airbag control module, also called the SRS ECU, detects that the voltage on the high side of the left hand rear (LHR) side impact airbag deployment circuit has fallen below 2.4 volts. The module applies a bias voltage to the high side line and monitors it to confirm the deployment loop is intact and ready to fire the side impact squib. A reading below 2.4 volts indicates the high side line is being pulled low, which can be caused by a short to ground, a high resistance or open in the circuit, or a poor connection at the airbag or module. When B0110 is stored the airbag ...

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