Pinpoint Test E : B1A63:11, B1A63:15, B1A64:11, B1A64:15: Notes
Refer to AUTOMATIC CLIMATE CONTROL SYSTEM for schematic and connector information.
Normal Operation and Fault Conditions
As the light applied to the sensor changes, the HVAC module detects the change through the RH and LH feedback circuits.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1A63:11 | Right Solar Sensor: Circuit Short to Ground | This CMDTC sets when the HVAC module senses a short to ground on the RH sensor feedback circuit. |
| B1A63:15 | Right Solar Sensor: Circuit Short to Battery or Open | This CMDTC sets when the HVAC module senses a short to voltage or an open on the RH sensor feedback circuit. |
| B1A64:11 | Left Solar Sensor: Circuit Short to Ground | This CMDTC sets when the HVAC module senses a short to ground on the LH sensor feedback circuit. |
| B1A64:15 | Left Solar Sensor: Circuit Short to Battery or Open | This CMDTC sets when the HVAC module senses a short to voltage or an open on the LH sensor feedback circuit. |
Possible Sources
- Wiring, terminals or connectors
- Autolamp/sunload sensor
- HVAC module
Visual Inspection and Diagnostic Pre-checks
- Inspect loose or corroded HVAC module and autolamp/sunload sensor connections.