Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Check the HVAC fuse in the fuse block. Is the HVAC fuse open? | -- | Go to Step 2 | Go to Step 3 |
2 | Locate and repair a short to ground in circuit 41 (BRN). Is the repair complete? | -- | System OK | -- |
3 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 4 |
4 | Locate and repair a poor connection or an open in circuit 41 (BRN). Is the repair complete? | -- | System OK | -- |
5 |
Does the test lamp light? | -- | Go to Step 8 | Go to Step 6 |
6 | Check for poor connection or open in circuit 362 (RED) between he 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 7 | Go to Step 10 |
7 | Repair the fault in circuit 362 (RED). Is the repair complete? | -- | System OK | -- |
8 |
Does the test lamp light? | -- | Go to Step 9 | Go to Step 11 |
9 | Locate and repair the short to ground in circuit 366 (LT GRN/BLK). Is the repair complete? | -- | System OK | -- |
10 | Replace the heater-A/C control. For manual systems refer to Control Assembly Replacement and for automatic systems refer to Control Assembly Replacement in Instrumant Panel, Gauges and Console. Is the repair complete? | -- | System OK | -- |
11 | There is a fault in the vacuum/electric solenoid, vacuum source, vacuum actuators, vacuum hoses to actuators, linkage from actuators to values, or faulty valves. Refer to Vacuum Test for further information. Is the action complete? | -- | System OK | -- |
