DTC B0021-13: Left Curtain Deployment Control 1 - Circuit open: Action
- Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check the left side air curtain circuit for open circuit, high resistance. Install a new wiring harness as necessary. If no wiring harness fault exists, using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new left side air curtain