Pinpoint Test M: The One-Touch Up/Down Feature is Inoperative

Glass, Frames and Mechanisms

Pinpoint Test M: The One-Touch Up/Down Feature is Inoperative

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

Normal Operation

During normal operation, when the window control switch is pressed to the second detent position to request a one-touch up or down operation, the window control switch provides a 12-volt signal on both the up and down line simultaneously. During a one-touch up or down request, the window motor determines intended window direction by the signal first received (first detent position). If the window control switch is pressed too quickly to the second detent position (less than 5 milliseconds of time between first detent signal and second detent signal), the window motor will not be able to determine the intended direction request and will not operate until the window control switch is released and pressed again.

This pinpoint test is intended to diagnose the following:

- Power window motor not initialized

- Window control switch

- Window regulator motor

PINPOINT TEST M : THE ONE-TOUCH UP/DOWN FEATURE IS INOPERATIVE

NOTICE: Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

M1 CHECK FOR POWER (B+) LOSS DURING WINDOW OPERATION

- Verify if power (B+) was lost during window operation.

Was power (B+) lost while the window was in operation?

Yes
RAISE the suspect window to the fully CLOSED position. VERIFY the window glass stalls into the upper header seal. The window should function normally. TEST the system for normal operation.
No
GO to M2.

M2 DE-INITIALIZE, THEN INITIALIZE THE WINDOW MOTOR

- De-initialize the suspect window motor, then carry out the 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 window motor lost initialization.
No
GO to M3.

M3 CHECK THE SUSPECT WINDOW CONTROL SWITCH

- Ignition OFF.

- Disconnect: Suspect Window Control Switch C504 (LH front, Regular Cab) C535A, C535B (Supercrew or SuperCab), or C604 (RH front).

- Carry out the component test for the suspect window control switch. Component Tests and General Diagnostics


Did the window control switch pass the component test?

Yes
INSTALL a new window regulator and motor. REFER to Window Regulator and Motor - Front Door . INITIALIZE the window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
No
INSTALL a new window control switch. REFER to Window Control Switch - Front . TEST the system for normal operation.