Pinpoint Test A: All Power Windows are Inoperative

Glass, Frames and Mechanisms

Pinpoint Test A: All Power Windows are Inoperative

Refer to Wiring Diagrams Set 100, Power Windows for schematic and connector information. Electrical Diagrams

Normal Operation

Under normal operation, the LH front power window control switch receives power from the accessory delay relay through circuit CBP41 (BU). The accessory delay relay is integral to the Smart Junction Box (SJB). The LH front power window control switch then supplies voltage to the passenger window control switches through circuit CPW14 (VT/WH).

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- LH front window control switch

- SJB (Smart Junction Box)

PINPOINT TEST A : ALL POWER WINDOWS ARE 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.

A1 CHECK FOR VOLTAGE TO THE LH FRONT WINDOW CONTROL SWITCH

- Disconnect: LH Front Window Control Switch C504.

- Ignition ON.

- Measure the voltage between LH front window control switch C504-3, circuit CBP41 (BU), harness side and ground.





Is the voltage greater than 10 volts?

Yes
INSTALL a new LH front window control switch. REFER to Window Control Switch . TEST the system for normal operation.

No
VERIFY SJB (Smart Junction Box) fuse 41 (15A) is OK. If OK, GO to Pinpoint Test J. Pinpoint Test J: The Delayed Accessory is Inoperative

If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short. REPAIR the circuit. TEST the system for normal operation. Electrical Diagrams