Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Has the HVAC Blower Controls System Check been performed? | -- | Go to Step 2 | |
2 |
Does the blower motor operate? | -- | Go to Step 3 | Go to Step 4 |
3 | Locate and repair the short to voltage in CKT 65 (PPL) between the high blower motor relay and the blower motor. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
4 | Connect a J 39200 (continuity) between pins C1 and A2 of the relay. Is continuity present? | -- | Go to Step 5 | Go to Step 6 |
5 | Replace the high blower motor relay. Refer to Blower Motor Relay Replacement . Is the repair complete? | -- | -- | |
6 |
Is voltage above the value given? | 1 volt | Go to Step 7 | Go to Step 8 |
7 | Locate and repair the short to voltage in CKT 52 (ORN) between the blower switch and the blower motor relay high. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
8 |
Is voltage above the value given? | 1 volt | Go to Step 9 | Go to Step 10 |
9 | Repair the short to voltage in CKT 101 (DK BLU) between the blower motor resistor and the high blower motor relay. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
10 |
Is continuity present between any pins expect pin D? | -- | Go to Step 11 | Go to Step 12 |
11 | Replace the HVAC control module. Refer to Control Assembly Replacement . Is the repair complete? | -- | -- | |
12 | With the blower resister and the HVAC control module connector C2 disconnected. Connect a J 39200 (volts) between pins A, C and D of the blower resister connector and ground. Is voltage reading greater than the value given? | 0.5 volts | Go to Step 13 | Go to Step 14 |
13 | Locate and repair the short to voltage in the circuit related to the pin tested. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
14 | Locate and repair the short to voltage within the blower resister. Refer Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- |
