DEFINITION: The DRIVER temperature control does not properly control the outlet air temperature.

Has the HVAC Diagnostic System Check been performed?

--

Go to Step 2

Go to Diagnostic System Check

1. Install a scan tool.
2. Turn the ignition ON.
3. Display the HVAC Data List.
4. Turn the AUTO button OFF.
5. Turn the PASSENGER temperature control knob to the center position.
6. Operate the DRIVER temperature control knob through the full range of adjustment.

Does the scan tool indicate the LH Mix Mtr Position Requested and the RH Mix Mtr Position Requested changing in correct relation to the DRIVER knob position?

--

Go to Step 3

Go to Step 9

Using the scan tool Miscellaneous Test attempt to operate the LH Mix Mtr through the full range of adjustment.

Does the scan tool indicate the LH Mix Mtr is operating properly?

--

Go to Step 4

Go to Step 5

Using the scan tool Miscellaneous Test attempt to operate the RH Mix Mtr through the full range of adjustment.

Does the scan tool indicate the RH Mix Mtr is operating properly?

--

System OK

Go to Step 6

Test and repair the LH Electric Actuator feed and control circuits for an open or high resistance.

Did you find and correct the condition?

--

Go to Step 10

Go to Step 7

Test and repair the RH Electric Actuator feed and control circuits for an open or high resistance.

Did you find and correct the condition?

--

Go to Step 10

Go to Step 8

Replace the LH Electric Actuator. Refer to Temperature Actuator Replacement .

Is the repair complete?

--

Go to Step 10

--

Replace the RH Electric Actuator. Refer to Temperature Actuator Replacement .

Is the repair complete?

--

Go to Step 10

--

Replace the HVAC Control Assembly. Refer to Control Assembly Replacement .

Is the repair complete?

--

Go to Step 10

--

1. Clear any DTCs which may have set.
2. Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Diagnostic System Check