Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the HVAC Diagnostic System Check ? | -- | Go to Step 2 | Go to Diagnostic System Check |
2 | Inspect Fuse 14 in the fuse block . Is the Fuse open? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair the short to ground in CKT 40 (ORN). Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
4 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 9 |
5 | Use a test lamp to backprobe between the blower motor relay harness connector terminal A2 and ground. Does the test lamp light? | -- | Go to Step 6 | Go to Step 12 |
6 | Use a test lamp, connected to B+, to backprobe the blower motor relay harness connector terminal A1. Does the test lamp light? | -- | Go to Step 7 | Go to Step 8 |
7 | Replace the blower motor relay. Is the repair complete? | -- | Go to Step 13 | -- |
8 | Locate and repair a poor connection or an open in CKT 150 (BLK) between the blower motor relay connector and ground G205. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
9 |
Does the test lamp light? | -- | Go to Step 10 | Go to Step 11 |
10 | Locate and repair a poor connection or an open in circuit 52 (ORN). Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
11 | Replace the heater - A/C control. Refer to Control Assembly Replacement . Is the repair complete? | -- | Go to Step 13 | -- |
12 | Locate and repair a poor connection or an open in CKT 40 (ORN). Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
13 | Verify that the system operates properly. Does the system operate properly ? | -- | System OK | Go to Symptoms |
