1998 Ford Contour Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Test C: Right Front Window Does Not Operate

  1. Check Driver Door Master Window Switch  - Turn ignition off. Remove and disconnect driver door master window switch. Turn ignition switch to RUN position. Connect a jumper wire between driver door master window switch 16-pin connector C74a terminal No. 3 (White/Violet wire) and driver door master window switch 4-pin connector C74b terminal No. 3 (Black wire). See Figure and Figure . Connect another jumper wire between driver door master window switch 16-pin connector C74a terminal No. 4 (Yellow/Violet wire) and driver door master window switch 4-pin connector C74b terminal No. 2 (Violet/Blue wire). If right front window does not go down, go to next step. If right front door window goes down, replace driver door master window switch and retest system operation.
  2. Check White/Violet Wire For Open Or Short To Ground  - Turn ignition off. Disconnect right front door window switch connector C489. Using an ohmmeter, check resistance between right front door window switch connector C489 terminal No. 6 (White/Violet wire) and driver door master window switch 16-pin connector C74a terminal No. 3 (White/Violet wire). See Figure and Fig 1 . Check resistance between ground and right front door window switch connector C489 terminal No. 6 (White/Violet wire). If resistance is less than 5 ohms between connectors and more than 10 k/ohms between connector and ground, go to next step. If resistance is 5 ohms or more between connectors and 10 k/ohms or less between connector and ground, repair White/Violet wire and retest system operation.
  3. Check Yellow/Violet Wire For Open Or Short To Ground  - Using an ohmmeter, check resistance between right front door window switch connector C489 terminal No. 3 (Yellow/Violet wire) and driver door master window switch 16-pin connector C74a terminal No. 4 (Yellow/Violet wire). See Figure and Fig 1 . Check resistance between ground and right front door window switch connector C489 terminal No. 3 (Yellow/Violet wire). If resistance is less than 5 ohms between connectors and more than 10 k/ohms between connector and ground, go to next step. If resistance is 5 ohms or more between connectors and 10 k/ohms or less between connector and ground, repair Yellow/Violet wire and retest system operation.
  4. Check Violet/White Wire For Voltage  - Turn ignition switch to RUN position. Using a voltmeter, check voltage between ground and right front door window switch connector C489 terminal No. 2 (Violet/White wire). See Fig 1 . If reading is more than 10 volts, go to next step. If reading is 10 volts or less, repair Violet/White wire and retest system operation.
  5. Check Right Front Door Window Switch  - Turn ignition off. Reconnect driver door master window switch. Turn ignition switch to RUN position. Connect a jumper wire between right front door window switch connector C489 terminals No. 1 and 6 (White/Violet wires). See Fig 1 . Connect another jumper wire between right front door window switch connector C489 terminals No. 7 (Yellow/Violet wire) and No. 2 (Violet/White wire). If right front window does not go down, go to next step. If right front door window goes down, replace right front door window switch and retest system operation.
  6. Check White/Violet Wire For Open Or Short To Ground  - Disconnect right front door window motor connector. Using an ohmmeter, check resistance between right front door window switch connector C489 terminal No. 1 (White/Violet wire) and right front door window motor connector terminal No. 2 (White/Violet wire). See Fig 1 . Check resistance between ground and right front door window switch connector C489 terminal No. 1 (White/Violet wire). If resistance is less than 5 ohms between connectors and more than 10 k/ohms between connector and ground, go to next step. If resistance is 5 ohms or more between connectors and 10 k/ohms or less between connector and ground, repair White/Violet wire and retest system operation.
  7. Check Yellow/Violet Wire For Open Or Short To Ground  - Using an ohmmeter, check resistance between right front door window switch connector C489 terminal No. 7 (Yellow/Violet wire) and right front door window motor connector terminal No. 1 (Yellow/Violet wire). See Fig 1 . Check resistance between ground and right front door window switch connector C489 terminal No. 7 (Yellow/Violet wire). If resistance is less than 5 ohms between connectors and more than 10 k/ohms between connector and ground, replace right front door window motor and retest system operation. If resistance is 5 ohms or more between connectors and 10 k/ohms or less between connector and ground, repair Yellow/Violet wire and retest system operation.
Fig 1: Identifying Passenger Window Switch Connector Terminals
G96C01388Courtesy of FORD MOTOR CO.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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