Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the HVAC operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 | Inspect the HVAC fuse. Is the HVAC fuse open? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair a short to ground in circuit 41 (BRN). Refer to Testing for Short to Ground and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 19 | -- |
4 |
Does the measured voltage vary within the specified range? | 1-12V | Go to Step 5 | Go to Step 6 |
5 |
Is the measured voltage within the specified range? | 9-14V | Go to Step 7 | Go to Step 8 |
6 |
Is the measured voltage within the specified range? | 9-14V | Go to Step 17 | Go to Step 13 |
7 | Connect a DMM between the left electric actuator harness connector terminal 10 and terminal 7. Is the measured voltage within the specified range? | 9-14V | Go to Step 9 | Go to Step 10 |
8 | Locate and repair a poor connection or an open in circuit 41 (BRN) between S233 and the left electric actuator harness connector terminal 10. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 19 | -- |
9 |
Does the measured voltage vary within the specified range? | 1-12V | Go to Step 11 | Go to Step 12 |
10 | Locate and repair a poor connection or an open in circuit 1450 (BLK) between the left electric actuator harness connector terminal 7 and S230. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 19 | -- |
11 |
Is the repair complete? | -- | Go to Step 19 | -- |
12 | Locate and repair a poor connection or an open in circuit 1199 (DK BLU) between the heater-A/C control harness connector C2 terminal B5 and the left electric actuator harness connector terminal 8. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 19 | -- |
13 | Locate and repair a poor connection or an open in circuit 41 (BRN) between the heater-A/C control harness connector C2 terminal B7 and the fuse block terminal B4. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 19 | -- |
14 |
Is the measured resistance equal to the specified value? | ∞ | Go to Step 16 | Go to Step 15 |
15 | Locate and repair a short to ground in circuit 1199 (DK BLU). Refer to Testing for Short to Ground and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 19 | -- |
16 | Replace the heater-A/C control. Refer to Control Assembly Replacement . Is the repair complete? | -- | Go to Step 19 | -- |
17 | Connect a DMM between the heater-A/C control harness connector C2 terminals B7 and B8. Is the measured voltage within the specified range? | 9-14V | Go to Step 14 | Go to Step 18 |
18 | Locate and repair a poor connection or an open in circuit 1450 (BLK) between the heater-A/C control harness connector C2 terminal B8 and G200. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 19 | -- |
19 | Verify that the system operates properly. Does the system operate properly? | -- | System OK | Go to Symptoms |
