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 | Is the RF window inoperative from both switches? | -- | Go to Step 3 | Go to Step 4
3 |

1. Place the ignition switch into the OFF position.
2. Disconnect the RF window switch.
3. Place the ignition switch into the RUN position.
4. Using a test lamp, probe the RF window switch connector from terminals H and D. Refer to Circuit Testing in Wiring Systems.
5. Press the LF window switch to the UP and DOWN positions.

Does the test lamp illuminate in both cases?

--

Go to Step 5

Go to Step 6

4 | Is the RF window inoperative only from the LF switch? | -- | Go to Step 13 | Go to Step 14
5 |

1. Turn the ignition switch to the OFF position.
2. Disconnect the RF window regulator motor.
3. Check for a short to ground and continuity in circuits 666 and 667. Refer to Circuit Testing in Wiring Systems.

Are either of these conditions present?

--

Go to Step 7

Go to Step 8

6 |

1. Disconnect the LF window switch.
2. Using a DMM, check for continuity in circuits 166 and 167. Refer to Circuit Testing in Wiring Systems.

Is an open condition present?

--

Go to Step 11

Go to Step 12

7 | Repair the poor connection, open or short to ground in circuit 666 or 667. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | --
8 |

1. Reconnect the RF window switch.
2. Place the ignition switch into the RUN position.
3. Using a test lamp, probe the RF window switch connector from terminals A and E. Refer to Circuit Testing in Wiring Systems.
4. Press the RF window switch to the UP and DOWN positions.

Does the test lamp illuminate in both cases?

--

Go to Step 9

Go to Step 10

9 | Replace the RF window regulator motor. Refer to Front Side Door Window Regulator Replacement . Is the repair complete? | -- | Go to Step 17 | --
10 | Replace the RF window switch. Refer to Door Trim Plate Replacement . Is the repair complete? | -- | Go to Step 17 | --
11 | Repair the poor connection or open in circuit 166 or 167. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | --
12 | Replace the LF window regulator motor. Refer to Front Side Door Window Regulator Replacement . Is the repair complete? | -- | Go to Step 17 | --
13 |

1. Disconnect the LF window switch.
2. Disconnect the RF window switch.
3. Check for a short to ground in circuits 166 and 167. Refer to Circuit Testing in Wiring Systems.

Is a short to ground present?

--

Go to Step 15

Go to Step 12

14 |

1. The window is inoperative from the RF switch only.
2. Place the ignition switch into the RUN position.
3. Using a test lamp, probe the RF window switch connector from terminal F to ground. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

--

Go to Step 10

Go to Step 16

15 | Repair the short to ground in circuit 166 or 167. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | --
16 | Repair the poor connection or open in circuit 141. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | --
17 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2