B0018 CHEVROLET Possible Causes
- Faulty airbag module
- Airbag module harness is open or shorted
- Poor electrical connection in the airbag module circuit
- Faulty Sensing and Diagnostic Module (SDM)
How to Fix B0018 CHEVROLET Code?
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Airbag warning light illuminated
B0018 CHEVROLET Meaning
The Instrument Panel (I/P) airbag module deployment loop consists of a dual-stage I/P module, I/P module high control circuit, and I/P module low control circuits for both stage 1 and stage 2. There are 2 shorting bars used in the I/P module connector that will short together the I/P module high and I/P module low control circuits for both stage 1 and stage 2 when the connector is disconnected. This helps prevent unwanted deployment of the airbag module during service. When the ignition is turned ON, the Sensing and Diagnostic Module (SDM) performs continuous diagnostic tests on the deployment loops to check for circuit continuity and shorts to ground or voltage. If a malfunction is detected, a Diagnostic Trouble Code (DTC) will be stored in memory.