B0028 Possible Causes
- Faulty right front side airbag module
- Right front side airbag module circuit open or shorted
- Poor electrical connection in right front side airbag module circuit
How to Fix Code B0028?
Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
When is the Code Detected?
If the Restraint Control Module (RCM) detects a short circuit between the passenger seat side airbag circuits and the circuits of another SRS component, it sets this Diagnostic Trouble Code (DTC) and the corresponding SRS component DTC.
Possible Symptoms
- Airbag warning light illuminated
B0028 Meaning
The Restraint Control Module (RCM) monitors all deployable device and sensor circuits for a coupled signal (short) between circuits. If the RCM detects a short circuit between the circuits of one device and another device, it will store a DTC for each of the signal cross-coupling faults in memory. The RCM sends a message to the instrument panel (IPC) to illuminate the airbag warning indicator. When a normal loop fault is present (a loop is either shorted to battery/ground, open circuit, or low resistance), then signal cross-coupling diagnostics will not be active. Once the normal loop fault is repaired, the signal cross-coupling diagnostic resumes.