PINPOINT TEST E : The Defrost System is Inoperative: Notes
Refer to Heated Window for schematic and connector information.
Normal Operation and Fault Conditions
REFER to Glass, Frames and Mechanisms , Rear Window Defrost for normal system operation.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1C83:12 | Rear Defog Relay: Circuit Short to Battery | This DTC sets when the HVAC module detects a short to voltage on the rear window defrost relay control circuit. |
| B1C83:13 | Rear Defog Relay: Circuit Open | This DTC sets when the HVAC module detects an open on the rear window defrost relay control circuit. |
Visual Inspection and Diagnostic Pre-checks
- Verify that BJB fuses 26 (40A) and 93 (5A) are OK.
- Visually inspect the rear window defrost relay.
- Visually inspect the rear window defrost grid and electrical connectors for damage.