Code Definition

B1016 — RH deployment loop Circuit resistance low

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

About B1016

B1016 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 B1016 is stored, the module has detected a signal or supply voltage lower 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.

B1016 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 Restraint Control Module (RCM) — also called the Sensing and Diagnostic Module (SDM) on GM-based Holden platforms — continuously monitors each airbag deployment loop by passing a small diagnostic current through the squib (igniter) and measuring the resulting voltage to calculate loop resistance. DTC B1016 is set when the module calculates that the right-hand deployment loop resistance has fallen below the lower acceptable threshold, typically around 1 ohm or less depending on the specific Holden platform, indicating a short circuit or shorted squib condition in the right-hand airbag l...

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