Code Definition

B357A — Heating Element Control Circuit Short to Battery

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

About B357A

B357A is a manufacturer-specific body diagnostic trouble code recorded for Holden vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B357A 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.

B357A 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 Body Control Module (BCM) controls and monitors the heating element output circuit, switching the element on and off and watching the circuit voltage to confirm the commanded state. DTC B357A is set when the BCM detects battery voltage present on the heating element control circuit while the output is commanded off, or a sustained voltage above the calibrated threshold. This points to a short to battery on the control wire, which can keep the element powered when it should be off. When this code is set the technician may notice the heated component staying on continuously, failing to switc...

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