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 run? | -- | Go to Step 3 | Go to Step 4 |
3 | Replace the auxiliary blower motor relay, high. Refer to Auxiliary Blower Motor Relay Replacement . Is the repair complete? | -- | -- | |
4 |
Is continuity present in both positions? | -- | Go to Step 6 | Go to Step 5 |
5 | Replace the auxiliary HVAC control module, front. Refer to Auxiliary Air Conditioning (A/C) Control Assembly Replacement - Front . Is the repair complete? | -- | -- | |
6 |
Is continuity present? | -- | Go to Step 8 | Go to Step 7 |
7 | Replace the auxiliary HVAC control module, rear. Refer to Control Assembly Replacement - Auxiliary . Is the repair complete? | -- | -- | |
8 |
Is continuity present? | -- | Go to Step 10 | Go to Step 9 |
9 | Locate and repair the open in CKT YEL (1172) between the auxiliary blower relay, high and splice S402. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
10 | Connect a J 39200 (volts) between cavity 1 of the high relay socket and ground. Is battery voltage present? | -- | Go to Step 12 | Go to Step 11 |
11 | Locate and repair the open in CKT 542 (RED) between cavity 1 of the auxiliary blower relay, high and splice S401. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
12 | Locate and repair the open in CKT 1924 (WHT) between the auxiliary blower motor relay, high and the auxiliary HVAC control modules, front and rear. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- |
