For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Power Windows System Check? | -- | Go to Step 2 | Go to Power Windows System Check
2 |

1. Disconnect inoperative window switch.
2. Using a digital multimeter (DMM), backprobe between B+ to terminal B of the inoperative window switch harness connector.
3. Turn the ignition switch on.

Does the voltage measure within the specified range?

10-15 V

Go to Step 6

Go to Step 3

3 | Check for a poor connection or open in the following:

• | (LR) CKT 169.

• | (RR) CKT 171.

• | (RF) CKT 167. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.

Is there a poor connection or open in the circuit?

--

Go to Step 4

Go to Step 5

4 | Repair poor connection or open in:

• | (LR) CKT 169.

• | (RR) CKT 17 1.

• | (RF) CKT 167.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

5 | Replace the LH front power window switch. Refer to Front Side Door Window Switch Replacement . Is the repair complete? | -- | Go to Power Windows System Check | --
6 | With the DMM in the same place, press and hold the inoperative window down switch, on the LF window switch. Does the voltage measure within the specified range? | 10-15 V | Go to Step 7 | Go to Step 9
7 | Test for a short to ground in the following:

• | (LR) CKT 169.

• | (RR) CKT 171.

• | (RF) CKT 167.

Is there a short in the circuit?

--

Go to Step 8

Go to Step 5

8 | Repair a short in the following:

• | (LR) CKT 169.

• | (RR) CKT 171.

• | (RF) CKT 167.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

9 | Using a DMM, probe between B+ to terminal E of the inoperative window switch harness connector. Does the voltage measure within the specified range? | 10-15 V | Go to Step 12 | Go to Step 10
10 | Test for a poor connection or open in the following:

• | (LR) CKT 168.

• | (RR) CKT 170.

• | (RF) CKT 166.

Is there a poor connection or open in the circuit?

--

Go to Step 10

Go to Step 5

11 | Repair poor connection or open in the following:

• | (LR) CKT 168.

• | (RR) CKT 170.

• | (RF) CKT 166.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

12 | With the DMM in the same place, press and hold the inoperative window up switch, on the LF window switch. Does the voltage measure within the specified range? | 10-15 V | Go to Step 13 | Go to Step 15
13 | Test for a short to ground in the following:

• | (LR) CKT 168.

• | (RR) CKT 170.

• | (RF) CKT 166.

Is there a short in the circuit?

--

Go to Step 14

Go to Step 5

14 | Repair a short in the following:

• | (LR) CKT 168.

• | (RR) CKT 170.

• | (RF) CKT 166.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

15 |

1. Using a DMM, probe between terminal B of the inoperative window switch harness connector and ground.
2. Turn the ignition switch on.

Does the voltage measure within the specified range?

10-15 V

Go to Step 17

Go to Step 16

16 | Repair poor connection or open in circuit 1307 between S502 and terminal B of the inoperative window switch harness connector. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Power Windows System Check | --
17 |

1. Reconnect the inoperative window switch connector.
2. Disconnect the inoperative window's regulator motor.
3. Using DMM, probe the inoperative window regulator motor harness connector terminal A to terminal B.
4. Turn the ignition switch on.
5. Press the inoperative window switch UP and then DOWN.

Does the voltage measure within the specified range?

10-15 V

Go to Step 18

Go to Step 19

18 | Replace the inoperative window's regulator motor. Refer to Power Window Motor Replacement . Is the repair complete? | -- | Go to Power Windows System Check | --
19 |

1. Disconnect the inoperative window switch connector:
2. Test for an open or short to ground in the following:

• | (LR) CKT 669.

• | (RR) CKT 671.

• | (RF) CKT 667.

Is there an open or short to ground in the circuit?

--

Go to Step 20

Go to Step 21

20 | Repair open or short to ground in the following:

• | (LR) CKT 669.

• | (RR) CKT 671.

• | (RF) CKT 667.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

21 | Test for a open or a short to ground in the following:

• | (LR) CKT 668.

• | (RR) CKT 670.

• | (RF) CKT 666.

Is there an open or short in the circuit?

--

Go to Step 22

Go to Step 23

22 | Repair the open or a short to ground in the following:

• | (LR) CKT 668.

• | (RR) CKT 670.

• | (RF) CKT 666.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

23 | Replace the inoperative window switch. Refer to Front Side Door Window Switch Replacement or Door Lock and Side Window Switch Replacement . Is the repair complete? | -- | Go to Power Windows System Check | --