Code Definition

B1208 — EIC Switch-1 Assembly Circuit Short To Ground

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

About B1208

B1208 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 B1208 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.

B1208 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 Control (EIC) module reads the Switch 1 assembly signal circuit by comparing the voltage on the input pin to a defined range of expected values. DTC B1208 sets when the module detects that the switch signal wire is pulled to ground voltage, essentially held at 0V when the expected reading should have been a higher reference value or a specific ladder step. A short to ground fault typically comes from chafed insulation allowing the signal wire to contact chassis metal, a pinched harness crushed against a ground point, or an internal failure inside the switch panel that...

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