Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | |
2 |
Did the rear heater blower motor stop running? | -- | Go to Step 3 | Go to Step 4 |
3 | Replace the rear heater switch. Refer to Control Switch Replacement - Auxiliary in Heating and Ventilation (Non-A/C). Is the repair complete? | -- | -- | |
4 | Disconnect the rear heater resistor pack. Did the rear heater blower motor stop running? | -- | Go to Step 5 | Go to Step 6 |
5 | Connect a test lamp J 35616-200 from the rear heater switch CKT 1925 (RED) cavity B to ground. Did the test lamp light? | -- | Go to Step 7 | Go to Step 8 |
6 | Repair the short to voltage in CKT 1924 (WHT) or CKT 1172 (YEL) between the rear heater blower motor and the rear heater switch. Is the repair complete? | -- | -- | |
7 | Repair the short to voltage in CKT 1925 (RED) between the rear heater resistor pack and the rear heater switch. Is the repair complete? | -- | -- | |
8 | Repair the short to voltage in CKT 1926 (DK BLU) between the rear heater resistor pack and the rear heater switch. Is the repair complete? | -- | -- |
