Step | Action | Value(s) | Yes | No | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Was the heater-A/C control Diagnostic System Check performed? | -- | Go to Step 2 | Go to Diagnostic System Check | ||||||||||||
2 | Inspect the HVAC fuse in the fuse block. Is the HVAC fuse open? | -- | Go to Step 3 | Go to Step 4 | ||||||||||||
3 | Locate and 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 13 | -- | ||||||||||||
4 |
Does the test lamp light? | -- | Go to Step 6 | Go to Step 5 | ||||||||||||
5 | Locate and repair a poor connection or an open in circuit 41 (BRN). Refer to Testing for Intermittent Conditions and Poor Connections and Circuit Testing in Wiring Systems. Is the repair complete? | -- | Go to Step 13 | -- | ||||||||||||
6 |
Does the test lamp light? | -- | Go to Step 9 | Go to Step 7 | ||||||||||||
7 | Inspect for a poor connection or open in circuit 362 (RED) between the vacuum/electric solenoid harness connector terminal 2 and the heater-A/C control module harness connector C2 terminal A5. Is there a poor connection or open in the circuit? | -- | Go to Step 8 | Go to Step 11 | ||||||||||||
8 | Repair the poor connection or the open in circuit 362 (RED). Refer to 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 12 | ||||||||||||
10 | Locate and repair the short to ground in circuit 366 (LT GRN/BLK). Refer to Testing for Short to Ground 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 | There is a fault in one of the following areas. Refer to Vacuum Test for further information.
Is the action complete? | -- | Go to Step 13 | -- | ||||||||||||
13 | Verify that the system operates properly. Does the system operate properly? | -- | System OK | Go to Diagnostic System Check |
