For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you review the operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms
2 |

1. Turn the ignition switch to the RUN position.
2. Using a test lamp, probe the LF window switch connector from terminal H to ground. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

--

Go to Step 3

Go to Step 4

3 | Using a test lamp, probe the LF window switch connector between terminals H and G. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 5 | Go to Step 6
4 | Repair the poor connection or open in circuit 143 or the RAP relay circuit (if the rear quarter windows are also inoperative). Refer to Connector Repairs or Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 7 | --
5 | Replace the LF window switch. Refer to Door Trim Plate Replacement . Is the repair complete? | -- | Go to Step 7 | --
6 | Repair the poor connection or open in circuit 750. Refer to Connector Repairs or Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 7 | --
7 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2