Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the HVAC system operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 | Inspect the fuse block for an open in the HVAC fuse. Is the HVAC fuse open? | -- | Go to Step 3 | Go to Step 4 |
3 | Locate and repair a short to ground in CKT 41 (BRN) . Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | -- |
4 |
Is the measured voltage within the specified value? | B+ | Go to Step 9 | Go to Step 5 |
5 | Use a DMM to probe between the heater-A/C control harness connector C2 terminal C and ground. Is the measured voltage within the specified value? | B+ | Go to Step 7 | Go to Step 6 |
6 | Locate and repair a poor connection or an open in CKT 41 (BRN) between the fuse block terminal D10 and splice S233..Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | -- |
7 | Locate and repair a poor connection or an open in CKT 1450 (BLK) between S230 and G200.Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | -- |
8 | Replace the heater-A/C control. Refer to Control Assembly Replacement . Is the repair complete? | -- | Go to Step 9 | -- |
9 | Verify that the system operates properly. Does the system operate properly? | -- | System Ok | Go to Symptoms |
