For 1990-2009 cars only
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 | There is a fault in vacuum source, vacuum actuators, vacuum hoses to actuators, linkage from actuators to values, or faulty valves. Inspect the system for these conditions. Were any leaks found? | -- | Go to Step 4 | Go to Step 3 |
3 | Refer to Vacuum System for further diagnosis. Is the repair complete? | -- | Go to Step 5 | -- |
4 | Replace the Heater A/C Control Module. Refer to Control Assembly Replacement . Is the repair complete? | -- | Go to Step 5 | -- |
5 | Verify that the system operates properly. Does the system operate properly? | -- | System OK | Go to Symptoms |
