For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the entire HVAC System Check performed? | -- | Go to Step 2 | Go to HVAC System Check
2 |

1. Place the ignition switch in the RUN position.
2. Turn the rear window wiper/washer and multi-function switch to the REAR position.
3. Place the blower switch in the inoperative position.
4. Connect a test light from the auxiliary heater-A/C control connector C2 inoperative terminal (1=D, 2=E, 3=F) to B+ on the harness connector.

Is the test light on?

--

Go to Step 3

Go to Step 4

3 | Repair the poor connection or open in the inoperative circuit (1=1176, 2=1072, 3=1052). Is the repair complete? | -- | Go to Step 5 | --
4 | Replace the auxiliary heater-A/C control. Refer to Control Assembly Replacement - Auxiliary in Side Trim Panel or Control Assembly Replacement - Auxiliary in Overhead Console . Is the repair complete? | -- | Go to Step 5 | --
5 |

1. Turn the ignition switch to the OFF position.
2. Reconnect all connectors/components disconnected.

Have all repairs been made?

--

Go to HVAC System Check

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