Air Recirculation Inoperative. Buick GL7 (Export) 2000

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you review the Air Delivery/Temperature Control Circuit Description and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms
2 | Verify that the air recirculation is inoperative. Does the air recirculation operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3

3

1. Disconnect the electric air inlet actuator.
2. Place the ignition switch in the RUN position.
3. Using a test lamp, probe between the electric air inlet actuator connector terminal 5 and ground. Refer to Circuit Testing in Wiring Systems.

Is the test lamp on?

--

Go to Step 4

Go to Step 5

4 | Using a test lamp, probe the electric air inlet actuator connector terminals 7 and 5. Refer to Circuit Testing in Wiring Systems. Is the test lamp on? | -- | Go to Step 6 | Go to Step 7
5 | Repair the poor connection or open in circuit 241 between the electric air inlet actuator connector terminal 5 and S264. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 14 | --

6

1. Set the heater-A/C control to the air recirculation position.
2. Using a test lamp, probe the electric air inlet actuator connector terminal 6 and ground. Refer to Circuit Testing in Wiring Systems.

Is the test lamp on?

--

Go to Step 8

Go to Step 9

7 | Repair the poor connection or open in circuit 150 between the electric air inlet actuator connector terminal 7 and S213. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 14 | --
8 | Replace the electric air inlet actuator. Refer to Air Inlet Actuator Replacement . Is the repair complete? | -- | Go to Step 14 | --
9 | Using a test lamp, probe the heater-A/C control connector C2 terminal H and ground. Refer to Circuit Testing in Wiring Systems. Is the test lamp on? | -- | Go to Step 10 | Go to Step 11
10 | Repair the poor connection or open in circuit 684 between the heater-A/C control connector C2 terminal H and the electric air inlet actuator connector terminal 6. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 14 | --
11 | Using a test lamp, probe the heater-A/C control connector C2 terminal K and B+. Refer to Circuit Testing in Wiring Systems. Is the test lamp on? | -- | Go to Step 12 | Go to Step 13
12 | Replace the heater-A/C control. Refer to HVAC Module Assembly Replacement . Is the repair complete? | -- | Go to Step 14 | --
13 | Repair the poor connection or open in circuit 150. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 14 | --

14

1. Turn the ignition switch to the OFF position.
2. Reconnect all connectors/components removed.
3. Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3