Code Definition

B1212 — EIC Switch-2 Assembly Circuit Short To Ground

System: Body  |  Type: Manufacturer-Specific  |  Make: Generic

About B1212

B1212 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1212 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) 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.

B1212 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Electronic Integrated Cluster (EIC) module monitors a network of instrument cluster switches that handle driver interface functions such as trip reset, display mode selection, and vehicle information readouts. DTC B1212 is set when the EIC module detects that the Switch 2 input line is continuously pulled to ground while the switch is in its rest position, which is the condition the module expects to see only briefly while the switch is being actively pressed. Because EIC switch inputs normally idle at a positive reference voltage through an internal pull up and drop to ground only momenta...

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