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Normal Operation

Under normal operation, the driver window control switch is supplied voltage through circuit (GY/Y). When the driver window control switch is commanding the driver window down, voltage is sent to the driver window motor through circuit (Y/V). Ground for the driver window motor is provided by the driver window control switch through circuit (L/GY). When up is commanded, voltage and ground from the driver window control switch is reversed.

This pinpoint test is intended to diagnose the following: 

SINGLE POWER WINDOW INOPERATIVE - DRIVER POWER WINDOW (PINPOINT TEST 2)

PINPOINT TEST 2 SINGLE POWER WINDOW IS INOPERATIVE - DRIVER POWER WINDOW
STEP INSPECTION ACTION
1 CHECK THE VOLTAGE TO THE DRIVER WINDOW CONTROL SWITCH
  • Key in OFF position.
  • Disconnect: Driver Window Control Switch connector 0912-201.
  • Key in ON position.
  • Measure the voltage between driver window control switch 0912-201 pin 5, circuit (GY/Y) harness side and ground.
  • Is the voltage greater than 10 volts? 
 Yes Go to step 4.
No Go to next step.
2 CHECK CIRCUIT (GY/Y) FOR AN OPEN
  • Key in OFF position.
  • Disconnect: SJB J-2280c.
  • Measure the resistance between driver window control switch 0912-201 pin 5, circuit (GY/Y) harness side and SJB J-2280c pin 16, circuit (GY/Y) harness side.
  • Is the resistance less than 5 ohms? 
 Yes Go to next step.
No REPAIR the circuit. TEST the system for normal operation.
3 CHECK FOR CORRECT SJB OPERATION
  • Disconnect: all SJB connectors.
  • Check for:
    • corrosion.
    • damaged pins.
    • pushed-out pins.
  • Connect all SJB connectors and make sure they seat correctly.
  • Operate the system and verify the concern is still present.
  • Is the concern still present? 
 Yes INSTALL a new SJB. See Smart Junction Box (SJB) . TEST the system for normal operation.
No The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.
4 CHECK THE DRIVER WINDOW CONTROL SWITCH
  • Key in ON position.
  • Connect a 30A fused jumper wire between driver window control switch:
    • 0912-201 pin 7, circuit (GY/Y) harness side and power window motor, driver side front 0912-201 pin 5, circuit (L/GY) harness side.
    • 0912-201 pin 1, circuit (YA/) harness side and power window motor, driver side front 0912-201 pin 2, circuit (B/L) harness side. The window should operate in the upward direction.
  • Connect a 30A fused jumper wire between driver window control switch:
    • 0912-201 pin 7, circuit (GY/Y) harness side and power window motor, driver side front 0912-201 pin 1, circuit (YA/) harness side.
    • 0912-201 pin 5, circuit (L/GY) harness side and power window motor, driver side front 0912-201 pin 2, circuit (B/L) harness side. The window should operate in the downward direction.
  • Does the window operate correctly? 
 Yes INSTALL a new driver window control switch. TEST the system for normal operation.
No Go to step 5.
5 CHECK CIRCUITS (YA/) AND (L/GY) FOR AN OPEN
  • Disconnect: Driver Window Motor connector 0912-204.
  • Measure the resistance between driver window control switch 0912-201 pin 1, circuit (YA/) harness side and driver window motor 0912-204 pin 2, circuit (YA/) harness side; and between driver window control switch 0912-201 pin 5, circuit (L/GY) harness side and driver window motor 0912-204 pin 1, circuit (L/GY) harness side.
  • Are the resistances less than 5 ohms? 
 Yes INSTALL a new driver window motor. See Front Door Window Regulator And Motor . TEST the system for normal operation.
No REPAIR the circuit. TEST the system for normal operation.
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