Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Has the Heater Blower Controls System Check been performed? | -- | Go to Step 2 | |
2 |
Is continuity present? | -- | Go to Step 4 | Go to Step 3 |
3 | Replace the blower motor relay high. Refer to Blower Motor Relay Replacement . Is the repair complete? | -- | -- | |
4 |
Is continuity present? | -- | Go to Step 5 | Go to Step 3 |
5 | Connect a DMM between the blower motor relay high cavity A1 and ground. Is there continuity? | -- | Go to Step 7 | Go to Step 6 |
6 | Locate and repair the open in CKT 150 (BLK) between the blower motor relay high and ground G202. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
7 | Connect a DMM between the blower motor relay high cavity A2 and ground. Is battery voltage present? | -- | Go to Step 9 | Go to Step 8 |
8 | Locate and repair the open in CKT 542 (RED) between the underhood block and the blower motor relay high. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
9 |
Is there continuity? | -- | Go to Step 10 | Go to Step 11 |
10 | Locate and repair the open in CKT 52 (ORN) between the HVAC control module and the blower motor relay high. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
11 | Replace the HVAC control module. Refer to Blower Switch Replacement . Is the repair complete? | -- | -- |
