| Table 1: | Heater Mode |
| Table 2: | Vent Mode |
| Table 3: | Defrost Mode |
Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | |||||
2 |
Is the airflow high? | -- | Go to Step 3 | Go to Step 6 | ||||
3 | Inspect the blower speeds for an airflow change. Is there an airflow change? | -- | Go to Step 4 | Go to Step 5 | ||||
4 | Inspect the temperature valve and the actuator for proper operation. Did you complete the repair? | -- | -- | |||||
5 | Inspect for proper air delivery. Refer to Air Delivery Improper . Did you complete the repair? | -- | -- | |||||
6 | Inspect the blower speeds for an airflow change. Is there an airflow change? | -- | Go to Step 7 | Go to Step 1 | ||||
7 | Inspect the following components for proper operation:
Does the heater defrost valve and the vacuum actuator operate properly? | -- | Go to Function Test |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | |
2 | Is the vent air too warm? | -- | Go to Step 3 | Go to Step 6 |
3 |
Is there a temperature valve operation? | -- | Go to Step 4 | Go to Step 5 |
4 |
Is the inspection complete? | -- | -- | |
5 | Inspect the temperature valve actuator for proper electrical or cable operation. Did you complete the repair? | -- | ||
6 |
Is there a system case leak? | -- | Go to Step 7 | -- |
7 |
Is there a temperature valve operation? | -- | Go to Step 8 | |
8 |
Did you complete the repair? | -- | -- |
Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | |||||
2 | Inspect the system for an objectional defroster bleed. Does the system contain an objectional defroster bleed? | -- | Go to Step 3 | Go to Function Test | ||||
3 |
Did you complete the repair? | -- | Go to Function Test |
