Pinpoint Test D: The LH Rear and RH Rear Power Windows Are Inoperative

Glass, Frames and Mechanisms

Pinpoint Test D: The LH Rear and RH Rear Power Windows are Inoperative

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

Normal Operation

There are two high current voltage circuits to the master window control switch. One of these circuits provides voltage for front window operation, the other provides voltage for rear window operation when the master window lock-out switch is in the UNLOCK position. The master window control switch supplies ground for all window motor operation through two different circuits. One of the circuits provides ground only to the LH front window, the other provides ground for the RH front, LH rear and RH rear window motor operation.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Window control switch

PINPOINT TEST D : THE LH REAR AND RH REAR 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.

D1 CHECK FOR VOLTAGE TO THE MASTER WINDOW CONTROL SWITCH

- Ignition OFF.

- Disconnect: Master Window Control Switch C504C.

- Ignition ON.

- Measure the voltage between master window control switch C504C-2, circuit CBP31 (BU/OG), harness side and ground.





Is the voltage greater than 10 volts?

Yes
GO to D2.

No
VERIFY Central Junction Box (CJB) fuse 31 (30A) is OK, If OK, REPAIR the circuit. CARRY OUT the window motor initialization procedure. REFER to Window Motor Initialization Programming and Relearning. TEST the system for normal operation.

If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short Electrical Diagrams. REPAIR the circuit. CARRY OUT the window motor initialization procedure. REFER to Window Motor Initialization Programming and Relearning. TEST the system for normal operation.

D2 CHECK FOR AN OPEN CIRCUIT BETWEEN THE MASTER WINDOW CONTROL SWITCH AND THE REAR WINDOW CONTROL SWITCH

- Ignition OFF.

- Disconnect: LH Rear Window Control Switch C701.

- Measure the resistance between master window control switch C504C-1, circuit CPW01 (BN/BU), harness side and LH rear window control switch C701-2, circuit CPW01 (BN/BU), harness side.





Is the resistance less than 5 ohms?

Yes
INSTALL a new master window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.

No
REPAIR the circuit. CARRY OUT the window motor initialization procedure. REFER to Window Motor Initialization Programming and Relearning. TEST the system for normal operation.