Step | Action | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|
DEFINITION: The mode control operates with either too much or too little effort. | |||||||||
1 | Were you sent here from Symptoms or another diagnostic table? | Go to Step 2 | |||||||
2 | Is one of the following a concern of the customer:
Does the mode control operate too freely? | Go to Step 3 | Go to Step 7 | ||||||
3 | With the ignition in the ON position:
Does the air outlet change through all of the modes? | Go to Step 16 | Go to Step 4 | ||||||
4 | Inspect the connections of the mode control cable. Is the mode control cable disconnected from the mode cam? | Go to Step 15 | Go to Step 5 | ||||||
5 | Inspect the mode control cable and cam, while operating the mode controls. Does the mode cam move while operating the mode controls? | Go to Step 21 | Go to Step 6 | ||||||
6 | Inspect the cable casing while operating the mode controls. Does the cable casing move, instead of the cable, while operating the mode controls? | Go to Step 18 | Go to Step 21 | ||||||
7 | Inspect the HVAC control assembly for any debris or obstructions that would increase the effort to operate the mode controls. Are there any obstructions? | Go to Step 20 | Go to Step 8 | ||||||
8 |
Does the HVAC control assembly bind now? | Go to Step 10 | Go to Step 9 | ||||||
9 | With the mode control cable disconnected:
Does the mode cam bind with the cable disconnected? | Go to Step 19 | Go to Step 10 | ||||||
10 |
Does the HVAC control assembly bind now? | Go to Step 16 | Go to Step 11 | ||||||
11 | With the mode control cable disconnected at both ends:
Does the mode control cable bind? | Go to Step 17 | Go to Step 12 | ||||||
12 |
Does the mode cable still bind? | Go to Step 17 | Go to Step 13 | ||||||
13 | Operate the HVAC control assembly with the mode control cable disconnected. Does the HVAC control assembly bind now? | Go to Step 16 | Go to Step 14 | ||||||
14 | Reassemble the mode control system. Is the action complete? | Go to Step 21 | -- | ||||||
15 | Reconnect the mode control cable to the mode cam and install the cable retainers. Is the action complete? | Go to Step 21 | -- | ||||||
16 | Replace the HVAC control assembly. Refer to Heater and Air Conditioning Control Replacement . Is the repair complete? | Go to Step 21 | -- | ||||||
17 | Replace the mode control cable. Refer to Mode Control Cable Replacement . Is the repair complete? | Go to Step 21 | -- | ||||||
18 | Secure the mode control cable casing. Is the action complete? | Go to Step 21 | -- | ||||||
19 | Repair the binding door or replace the upper HVAC case assembly. Refer to Air Conditioning (A/C) Evaporator and Blower Module Assembly Replacement or Heater Assembly Replacement . Is the repair complete? | Go to Step 21 | -- | ||||||
20 | Remove the debris. Is the action complete? | Go to Step 21 | -- | ||||||
21 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 2 |