For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Driver Seat Schematics or Passenger Seat Schematics Connector End View Reference: Power Seat Connector End Views DEFINITION: The driver or passenger vented seat stays On.
1 | Did you review the vented seat operation and perform the necessary inspection? | Go to Step 2 | Go to Symptoms - Seats
2 | Verify that the Vented Seat Always On complaint is present. Does the vented seat system operate as described in the system description and operation? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3
3 |

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool, observe the appropriate Vented Seat Switch parameter in the HVAC Control Module data list.

Does the Vented Seat Switch parameter display Pressed?

Go to Step 6

Go to Step 4

4 | Test the fan speed control circuit between the climate control seat module and the blower motor for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 9 | Go to Step 5
5 | Inspect for poor connections at the harness connector of the climate control seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 9 | Go to Step 7
6 | Inspect for poor connections at the harness connector of the HVAC control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 9 | Go to Step 8
7 | Replace the climate control seat module. Refer to Control Module References for replacement, setup, and programming. Did you complete replacement? | Go to Step 9 | --
8 | Replace the HVAC control module. Refer to Control Module References replacement, setup, and programming. Have you finished the replacement? | Go to Step 9 | --
9 | Operate the system to verify the repair. Did you correct the condition? | System OK | Go to Step 2