Exterior Lighting System DTCS: AUTOLAMPS
| DTC | Description | Action |
|---|---|---|
| B1A85:21 | Ambient Light Sensor: Signal Amplitude < Minimum | GO to PINPOINT TEST B |
| B1A85:22 | Ambient Light Sensor: Signal Amplitude > Maximum | GO to PINPOINT TEST B |
| B1A85:2F | Ambient Light Sensor: Signal Erratic | GO to PINPOINT TEST B |