Pinpoint Test G: A Single Power Window is Inoperative - LH Rear Window
Glass, Frames and Mechanisms
Pinpoint Test G: A Single Power Window is Inoperative - LH Rear Window
Refer to Wiring Diagram Set 100, Power Windows for schematic and connector information Electrical Diagrams.
Normal Operation
The LH rear window control switch receives power from the master window control switch when the lock-out switch is in the UNLOCK position. Ground is provided to the LH rear window control switch through the master window control switch. The LH rear window control switch transfers power and ground to the LH rear window motor. Window direction is controlled by reversing polarity of the voltage and ground circuits being supplied to the window motor.
When operating the LH rear window from the master window control switch, power and ground is sent from the master window control switch through the normally closed contacts within the LH rear window control switch to operate the LH rear window. Window direction is controlled by reversing polarity of the voltage and ground circuits being supplied to the window motor.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Window control switch
- Window regulator motor
PINPOINT TEST G : A SINGLE POWER WINDOW IS INOPERATIVE - LH REAR WINDOW
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.
G1 CHECK THE LH REAR WINDOW OPERATION FROM THE MASTER WINDOW CONTROL SWITCH
- Ignition ON.
- Operate the LH rear window from the master window control switch.
Does the LH rear window operate from the master window control switch?
Yes
GO to G2.
No
GO to G3.
G2 CHECK FOR VOLTAGE TO THE LH REAR WINDOW CONTROL SWITCH
- Ignition OFF.
- Disconnect: LH Rear Window Control Switch C701.
- Ignition ON.
- NOTE: Make sure the window lock-out switch is in the UNLOCK position.
Measure the voltage between LH rear window control switch C701-2, circuit CPW01 (BN/BU), harness side and ground.
Is the voltage greater than 10 volts?
Yes
INSTALL a new LH rear window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
G3 CHECK FOR VOLTAGE AND GROUND TO THE WINDOW MOTOR
- Ignition OFF.
- Disconnect: LH Rear Power Window Motor C703.
- Ignition ON.
- NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the window control switch is activated.
Measure the voltage between LH rear power window motor C703-1, circuit CPW22 (GN/VT), harness side and LH rear power window motor C703-2, circuit CPW21 (BN), harness side while operating the master window control switch in the down then up positions.
Is the voltage greater than 10 volts when the window control switch is operated and 0 volt in the rest position?
Yes
INSTALL a new LH rear window regulator motor. REFER to Window Regulator Motor - Rear Door Window Regulator Motor - Rear Door. TEST the system for normal operation.
No
GO to G4.
G4 CHECK THE LH REAR WINDOW CONTROL SWITCH
- Ignition OFF.
- Disconnect: LH Rear Window Control Switch C701.
- Carry out the window control switch component test on the LH rear window control switch.
Did the LH rear window control switch pass the component test?
Yes
GO to G5.
No
INSTALL a new LH rear window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.
G5 CHECK FOR AN OPEN CIRCUIT BETWEEN THE REAR WINDOW CONTROL SWITCH AND THE WINDOW MOTOR
- Measure the resistance between LH rear window control switch C701, harness side and LH rear power window motor C703, harness side, using the following chart:
LH Rear Window Control Switch Circuit LH Rear Power Window Motor C701-1 CPW22 (GN/VT) C703-1 C701-7 CPW21 (BN) C703-2
Are the resistances less than 5 ohms?
Yes
GO to G6.
No
REPAIR the circuit(s). TEST the system for normal operation.
G6 CHECK FOR AN OPEN CIRCUIT BETWEEN THE LH REAR WINDOW CONTROL SWITCH AND THE MASTER WINDOW CONTROL SWITCH
- Disconnect: Master Window Control Switch C504C.
- Measure the resistance between master window control switch C504C, harness side and LH rear window control switch C701, harness side using the following chart:
Master Window Control Switch Circuit LH Rear Window Control Switch C504C-8 CPW15 (YE) C701-3 C504C-7 CPW16 (BU/OG) C701-6
Are the resistances 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(s). CARRY OUT the window motor initialization procedure. REFER to Window Motor Initialization Programming and Relearning. TEST the system for normal operation.