Pinpoint Test E: The One-Touch Up/Down Feature Is Inoperative - LH Front Window Only

Glass, Frames and Mechanisms

Pinpoint Tests

Pinpoint Test E: The One-Touch Up/Down Feature is Inoperative - LH Front Window Only

Refer to Wiring Diagram Set 100, Power Windows for schematic and connector information. Diagrams By Number

NOTE: A new LH front power window motor will not operate in one-touch up mode until initialized. Refer to Window Motor Initialization .

NOTE: The LH front power window motor must be initialized whenever a new motor is installed.

NOTE: The LH front power window motor must be de-initialized, then initialized whenever the LH front window motor is removed from the window regulator drum housing, a new window regulator is installed, a new window glass is installed, a new top run is installed or for any operation in which grease or lubricants are applied to the window regulator or glass run.

Normal Operation

The LH front power window control switch receives power from the delayed accessory relay through circuit CBP47 (GN/BU) and is grounded through circuit GD133 (BK). When the LH front window control switch is pressed to the UP position, the LH front motor receives power through circuit CPW11 (BU/GY). When the LH front window control switch is pressed to the DOWN position, the LH front motor receives power through circuit CPW10 (YE/VT). When the LF window motor receives a ground signal on circuit CPW29 (VT/GY), the LF window motor will enter one-touch down.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Inoperative LH front window motor
- Inoperative LH front window control switch
- LH front motor not initialized



PINPOINT TEST E: THE ONE-TOUCH UP/DOWN FEATURE IS INOPERATIVE - LH FRONT WINDOW ONLY

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E1 CHECK FOR POWER (B+) LOSS DURING LH FRONT WINDOW OPERATION


- Verify if power (B+) was lost during LH front window operation.
- Was power (B+) lost while LH front window was in operation?

Yes
RAISE the LH front window to the fully CLOSED position. VERIFY the window glass stalls into the upper header seal. The LH front window should function normally. TEST the system for normal operation.

No
GO to E2.

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E2 DE-INITIALIZE, THEN INITIALIZE THE LH FRONT MOTOR


- De-initialize the LH front window motor, then carry out the LH front window motor initialization procedure. Refer to Window Motor Initialization .
- Is the one-touch down feature operating correctly?

Yes
The system is operating normally at this time. The LH front window motor lost initialization.

No
GO to E3.

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E3 CHECK THE LH FRONT WINDOW CONTROL SWITCH


- Ignition OFF.
- Disconnect: LH Front Window Control Switch.
- Carry out the LH Front Window Switch Component Test.

- Did the LH front window switch pass the component test?

Yes
GO to E4.

No
INSTALL a new LH front window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.

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E4 CHECK CIRCUIT CPW29 (VT/GY) FOR AN OPEN


- Disconnect: LH Front Window Control Switch C504b.
- Disconnect: LH Front Window Motor C524.
- Measure the resistance between LH front window control switch C504b-3, circuit CPW29 (VT/GY), harness side and LH front window motor connector C524-2, circuit CPW29 (VT/GY).




- Is the resistance less than 5 ohms?

Yes
GO to E5.

No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.

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E5 CHECK FOR INTERMITTENT GROUND CONNECTIONS


- Measure the resistance between LH front window motor C524-4, circuit GD133 (BK), harness side and ground.




- Wiggle the harness while measuring the resistance.
- Is the resistance less than 5 ohms?

Yes
GO to E6.

No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.

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E6 CHECK FOR INTERMITTENT POWER CONNECTIONS


- Ignition ON.
- Measure the voltage between LH front window motor C524-1, circuit SBP01 (RD), harness side and ground; and between LH front window motor C524-3, circuit CBP41 (BU), harness side and ground.




- Are the voltages greater than 10 volts?

Yes
INSTALL a new LH front power window motor. REFER to Window Regulator Motor Window Regulator Motor. INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.

No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front power window motor. REFER to Window Motor Initialization . TEST the system for normal operation.

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