Left Side Airbag Deployment Control
Table of contents
B0020 LINCOLN Possible Causes
- Faulty Left Seat Side Airbag
- Left Seat Side Airbag harness is open or shorted
- Left Seat Side Airbag circuit poor electrical connection
How do I fix code B0020 LINCOLN?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B0020 LINCOLN code
The cost of diagnosing the B0020 LINCOLN code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
If the Restraints Control Module (RCM) detects a short between the driver seat side air bag circuits and the circuits of another SRS component, it sets this Diagnostic Trouble Code (DTC) and the DTC of the corresponding SRS component.
Possible Symptoms
- Air Bag Warning Light ON
B0020 LINCOLN Description
The Restraints Control Module (RCM) monitors all deployable device and sensor circuits for a signal cross coupled (short) between circuits. If the RCM detects a short between the circuits of one device and another device, it will store a DTC for each of the signal cross coupled faults in memory. The RCM sends a message to the Instrument Panel Cluster (IPC) to illuminate the air bag warning indicator. When a normal loop fault is present (one loop is either shorted to battery/ground, open circuit or low resistance), then signal cross coupled diagnostics will not be active. Once the normal loop fault is repaired, then the signal cross coupled diagnostics will resume.
