For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 | Operate all power windows from all power window switches. Did all the power windows operate from all power window switches correctly? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3
3 | Did any power window operate from any power window switch? | -- | Go to Symptoms - Fixed and Moveable Windows | Go to Step 4
4 |

1. Disconnect the main power window switch connector.
2. Turn ON the ignition, with the engine OFF.
3. Connect a test lamp between the accessory voltage circuit of the main power window switch connector and a good ground.

Does the test lamp illuminate?

--

Go to Step 5

Go to Step 6

5 | Connect a test lamp between the accessory voltage circuit and the ground circuit of the main power window switch connector. Does the test lamp illuminate? | -- | Go to Step 10 | Go to Step 13
6 |

1. Turn OFF the ignition.
2. Remove the power window relay.
3. Connect a test lamp between the power window relay battery positive voltage circuit at the power window relay harness connector and a good ground.

Does the test lamp illuminate?

--

Go to Step 8

Go to Step 7

7 | Test the following circuits of the main power window switch for a short to ground:

• | Power window motor left front up control

• | Power window motor left front down control

• | Power window master switch left rear up signal

• | Power window master switch left rear down signal

• | Power window master switch lockout signal of the LR window switch

• | Power window master switch lockout signal of the RR window switch

• | Power window master switch right rear up signal

• | Power window master switch right rear down signal

• | Power window motor right front up control

• | Power window motor right front down control

• | Power window motor left rear up control

• | Power window motor left rear down control

• | Power window motor right rear up control

• | Power window motor right rear down control

Did you find and correct the condition?

--

Go to Step 17

Go to Step 12

8 | Connect a test lamp between the battery positive voltage circuit and the ground circuit of the power window relay connector. Does the test lamp illuminate? | -- | Go to Step 9 | Go to Step 14
9 | Test the accessory voltage circuit of the main power window switch for a high resistance or an open. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 11
10 | Inspect for poor connections at the main power window switch connector. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 16
11 | Inspect for poor connections at the power window relay connector. Did you find and correct the condition? | -- | Go to Step 17 | Go to Step 15
12 | Repair the short to ground in the accessory voltage circuit of the main power window switch. Did you complete the repair? | -- | Go to Step 17 | --
13 | Repair the open or high resistance in the main power window switch ground circuit. Did you complete the repair? | -- | Go to Step 17 | --
14 | Repair the open or high resistance in the power window relay ground circuit. Did you complete the repair? | -- | Go to Step 17 | --
15 | Replace the power window relay. Did you complete the replacement? | -- | Go to Step 17 | --
16 | Replace the main power window switch. Did you complete the replacement? | -- | 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