Code Definition

B2110 — Front Wiper Motor Relay Circuit Open (changed from Failure 2/6/97)

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

About B2110

B2110 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 B2110 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

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 B2110 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

The Body Control Module (BCM) drives the front wiper motor relay coil to control wiper operation in low and high speed modes. DTC B2110 is set when the BCM detects an open circuit on the wiper motor relay control wire, meaning no current is flowing through the relay coil when the BCM commands wipers on. This indicates a break in the wiring, a missing relay, an open relay coil, or a failed BCM driver that cannot complete the circuit. When this code is set the front wipers fail to operate in one or more speed modes, the intermittent wipe function may not engage, and the driver typically notices ...

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