For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Driver Seat Schematics or Passenger Seat Schematics Connector End View Reference: Component 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