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Single Power Window Inoperative

NOTE: See WIRING DIAGRAM  for terminal number and wire color identification.
  1. Check Switch Power Supply  - Remove master window switch. See MASTER POWER WINDOW SWITCH  under REMOVAL & INSTALLATION. Leave wire harness connected. Turn ignition on. Using voltmeter, attach negative lead to known-good ground. Probe each terminal of switch connector with remaining lead while actuating switch as specified. See SWITCH CIRCUIT TEST TABLE. If battery voltage exists at specified terminals, go to next step. If battery voltage does not exist at specified terminals, replace master window switch.
    SWITCH CIRCUIT TEST

    Terminal No. Wire Color Circuit Function
    1 White/Purple Right Front Down
    2 Yellow/Purple Right Front Up
    3 White Right Rear Down
    4 Yellow Right Rear Up
    6 White Left Front Up
    7 Yellow/Green Left Front Down
    8 White/Blue Left Rear Down
    9 Yellow/Blue Left Rear Up
  2. Check Motor Power Supply  - Gain access to wire harness connector of inoperative power window motor. Unplug connector. Probe each terminal of motor connector (harness side) while actuating related switch as specified. See MOTOR CIRCUIT TEST  table. If battery voltage does not exist at specified terminals, go to next step. If battery voltage exists at specified terminals, go to step 4).
    MOTOR CIRCUIT TEST

    Wire Color Circuit Function
    Yellow/Purple Right Front Up
    White/Purple Right Front Down
    Yellow/Red Right Rear Up
    White/Red Right Rear Down
    Yellow Left Front Down
    White Left Front Up
    Yellow/Red Left Rear Up
    White/Red Left Rear Down
  3. Check Circuit Continuity  - Turn ignition off. Disconnect negative battery cable. Unplug master window switch. Using ohmmeter, measure resistance of suspect circuit between switch harness connectors. If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open circuit.
  4. Check Window Motor  - Using fused jumper wire, connect one end to battery positive terminal. Connect remaining end to either terminal of window motor connector. Momentarily connect a second jumper wire between a known-good ground and remaining window motor connector terminal. Window motor should operate smoothly. Reverse leads. Window motor should operate in reverse direction. Replace window motor if it does not operate as specified.
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