The Numbers below refer to the step numbers on the diagnostic table.
This step checks to see that the door module associated with the inoperative window recognizes the switch input.
Enabling the headlamps in this step eliminates the possibility of the window switch using an alternative path to ground through the switch illumination circuit, which could cause the scan tool to display incorrect window switch states.
This step determines if the Express Down function of the window switch, if applicable, has failed.
This step determines if the door module battery positive voltage or ground circuit, associated with module connector C3 for the front passenger door, or, associated with module connector C2 for a rear door, are the cause of the malfunction.
This step eliminates the window switch as the cause of the malfunction.
This step eliminates the switch ground circuit as the cause.
This step eliminates the switch Up or Down signal circuits as the cause.
Step | Action | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|
Schematic References: Power Window Schematics and Door Control Module Schematics | |||||||||
1 | Did you Perform the Door Systems Diagnostic System Check? | Go to Step 2 | |||||||
2 | Verify that the Power Windows Inoperative-Passenger Door complaint is present. Do the passenger door windows operate as described in the Description and Operation? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||
Did the Door Window Sw. parameter change from the Idle state to the Up, Down, and, if applicable, Express Down states as expected? | Go to Step 5 | Go to Step 4 | |||||||
Is Express Down the only inoperative state? | Go to Step 16 | Go to Step 9 | |||||||
Does the test lamp illuminate? | Go to Step 6 | Go to Step 11 | |||||||
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 12 | ||||||
7 |
Does the test lamp illuminate? | Go to Step 8 | Go to Step 13 | ||||||
8 |
Does the test lamp illuminate for both the Up and Down positions? | Go to Step 17 | Go to Step 18 | ||||||
Important: If the 3 amp fuse of the jumper wire opens when the jumper wire is connected, test the power window switch signal circuit for a short to B+.
Does the Door Window Sw parameter indicate the inoperative state? | Go to Step 10 | Go to Step 15 | |||||||
10 | Connect the 3 amp fused jumper wire between the switch signal circuit of the inoperative window state and the switch ground circuit. Does the Door Window Sw. parameter indicate the inoperative state? | Go to Step 16 | Go to Step 14 | ||||||
11 | Test the battery positive voltage circuit for an open . Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 19 | ||||||
12 | Test the power window motor Up circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 18 | ||||||
13 | Test the power window motor Down circuit for a short to ground, a high resistance, or, an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 18 | ||||||
Test the power window switch ground circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 18 | |||||||
Test the power window switch signal circuit of the inoperative window state for a short to battery, or, an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 18 | |||||||
16 | Inspect for poor connections at the harness connector of the inoperative power window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 20 | ||||||
17 | Inspect for poor connections at the harness connector of the inoperative power window motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 21 | ||||||
18 | Inspect for poor connections at the harness connector of the inoperative passenger door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 22 | ||||||
19 | Repair the open ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- | ||||||
20 | Replace the inoperative power window switch. Refer to Rear Side Door Window Switch Replacement or Front Door Switch Replacement . Did you complete the replacement? | Go to Step 23 | -- | ||||||
21 | Replace the inoperative power window motor. Refer to Front Side Door Window Regulator Motor Replacement or Rear Side Door Window Regulator Motor Replacement . Did you complete the replacement? | Go to Step 23 | -- | ||||||
22 | Replace the inoperative passenger door module. Refer to Door Control Module Replacement . Did you complete the replacement? | Go to Step 23 | -- | ||||||
23 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |