| Table 1: | Mode Actuator Inoperative |
| Table 2: | Temperature Actuator Inoperative |
| Table 3: | Blower Actuator Inoperative |
| Table 4: | High or Low Temperature Control Effort |
| Table 5: | High or Low Blower Control Effort |
| Table 6: | High or Low Mode Control Effort |
Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | System OK | ||||
2 | Inspect the mode actuator for the following conditions:
Are the electrical connections in good condition? | -- | Go to Step 4 | Go to Step 3 | ||||
3 | Repair the connections as needed. Is the mode actuator still inoperative? | -- | Go to Step 4 | System OK | ||||
4 |
Does vacuum exist? | -- | Go to Step 6 | Go to Step 5 | ||||
5 | Repair the vacuum hoses as needed. Is the mode actuator still inoperative? | -- | System OK | -- | ||||
6 |
Did the mode change? | -- | Go to Step 7 | Go to Step 8 | ||||
7 | Replace the mode selector switch. Refer to Mode Actuator Replacement . Did you complete the repair? | -- | System OK | -- | ||||
8 | Replace the vacuum valve. Did you complete the repair? | -- | System OK | -- |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | System OK |
2 | Inspect the electrical connections. Are the electrical connections in good condition? | -- | Go to Step 4 | Go to Step 3 |
3 | Repair the connections as needed. Is the temperature actuator still inoperative? | -- | Go to Step 4 | System OK |
4 | Is the vehicle equipped with a temperature control motor? | -- | Go to Step 6 | Go to Step 5 |
5 | Replace the temperature cable/control. Refer to Temperature Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
6 | Replace the temperature control motor. Refer to Temperature Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | System OK |
2 | Inspect the electrical connections. Are the electrical connections in good condition? | -- | Go to Step 4 | Go to Step 3 |
3 | Repair the connections as needed. Is the blower actuator still inoperative? | -- | Go to Step 4 | System OK |
4 | Replace the blower switch. Refer to Blower Switch Replacement . Did you complete the repair? | -- | System OK | -- |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | System OK |
2 | Inspect for proper control knob installation. Is the control knob installed properly? | -- | Go to Step 4 | Go to Step 3 |
3 |
Does the condition persist? | -- | Go to Step 4 | System OK |
4 | Is excessive effort required in order to change the settings? | -- | Go to Step 5 | Go to Step 8 |
5 | Inspect for visual binding of the controls. Is visible binding evident? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair or replace the temperature cable/control or the temperature control motor (if equipped). Refer to Temperature Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
7 | Replace the temperature cable/control or the temperature control motor (if equipped). Refer to Temperature Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
8 | Low effort is required in order to change the settings. Do the control settings change position when the vehicle is moving? | -- | Go to Step 9 | System OK |
9 | Replace the temperature cable/control or the temperature control motor (if equipped). Refer to Temperature Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | System OK |
2 | Inspect for proper control knob installation. Is the control knob installed properly? | -- | Go to Step 4 | Go to Step 3 |
3 |
Does the condition persist? | -- | Go to Step 4 | System OK |
4 | Is excessive effort required in order to change the settings? | -- | Go to Step 5 | Go to Step 8 |
5 | Inspect for visual binding of the controls. Is visible binding evident? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair or replace the blower switch. Refer to Blower Switch Replacement . Did you complete the repair? | -- | System OK | -- |
7 | Replace the blower switch. Refer to Blower Switch Replacement . Did you complete the repair? | -- | System OK | -- |
8 | Low effort is required in order to change the settings. Do the control settings change position when the vehicle is moving? | -- | Go to Step 9 | System OK |
9 | Replace the blower switch. Refer to Blower Switch Replacement . Did you complete the repair? | -- | System OK | -- |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Heater Blower Controls System Check? | -- | Go to Step 2 | System OK |
2 | Inspect for proper control knob installation. Is the control knob installed properly? | -- | Go to Step 4 | Go to Step 3 |
3 |
Does the condition persist? | -- | Go to Step 4 | System OK |
4 | Is excessive effort required in order to change the settings? | -- | Go to Step 5 | Go to Step 8 |
5 | Inspect for visual binding of the controls. Is visible binding evident? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair or replace the mode switch. Refer to Mode Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
7 | Replace the mode switch. Refer to Mode Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
8 | Low effort is required in order to change the settings. Do the control settings change position when the vehicle is moving? | -- | Go to Step 9 | System OK |
9 | Replace the mode switch. Refer to Mode Actuator Replacement . Did you complete the repair? | -- | System OK | -- |
