Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the heater-A/C diagnostic system check performed? | -- | Go to Step 2 | Go to Diagnostic System Check |
2 | Check the HVAC fuse in the fuse block. Is the DIC/HVAC fuse open? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair short to ground in circuit 541. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
4 |
Is the measured voltage within the specified value? | 9-14V | Go to Step 6 | Go to Step 5 |
5 | Repair poor connection or open in circuit 541 (BRN). Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
6 |
Does the voltage vary? | -- | Go to Step 7 | Go to Step 8 |
7 | Replace the LH electric actuator. Refer to Temperature Actuator Replacement (LH) . Is the repair complete? | -- | Go to Step 13 | -- |
8 | Check for short to ground or short to B+ in circuit 1199 (DK BLU). Is there a short to ground or short to B+ in circuit 1199 (DK BLU)? | -- | Go to Step 9 | Go to Step 10 |
9 | Locate and repair the short to ground or the short to B+ in circuit 1199 (DK BLU). Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
10 | Check for a poor connection or open in circuit 1199 (DK BLU) between the heater-A/C control harness connector terminal C7 and the LH electric actuator harness connector terminal 6. Is there continuity in circuit 1199 (DK BLU)? | -- | Go to Step 11 | Go to Step 12 |
11 | Repair poor connection or open in circuit 1199 (DK BLU)between the heater-A/C control harness connector terminal C7 and the LH electric actuator harness connector terminal 6. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- |
12 | Replace the heater-A/C control. Refer to Control Assembly Replacement . Is the repair complete? | -- | Go to Step 13 | -- |
13 | Verify that the systems operate properly. Does the system operate properly ? | -- | System OK | Go to Diagnostic System Check |
