Pinpoint Test E: A Single Power Window is Inoperative - LH Rear
Glass, Frames and Mechanisms
Pinpoint Test E: A Single Power Window is Inoperative - LH Rear
NOTE: A new power window motor will not operate in one-touch up mode until initialized. Refer to Window Motor Initialization .
NOTE: The power window motor must be initialized whenever a new motor is installed.
NOTE: The power window motor must be de-initialized, then initialized whenever the 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
Under normal operation, the LH rear power window motor receives high current power at all times through circuit SBB29 (GY/RD). Ground is provided to the LH rear power window motor through circuit GD133 (BK). The LH rear power window motor receives low current power from the accessory delay relay through circuit CBP41 (BU). When the LH front window control switch is in the UNLOCK position, voltage is supplied to the LH rear window control switch through circuit CPW14 (VT/WH). When the LH rear or LH front window control switch is operated in the up position, the LH rear window motor receives a voltage signal through circuit CPW16 (BU/OG). When the LH rear or LH front window control switch is operated in the down position, the LH rear window motor receives a voltage signal through circuit CPW15 (YE).
This pinpoint test is intended to diagnose the following:
- LH rear window regulator motor not initialized
- Wiring, terminals or connectors
- LH rear window regulator motor
- LH front window control switch
- LH rear window control switch
PINPOINT TEST E : A SINGLE POWER WINDOW IS INOPERATIVE - LH REAR
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.
E1 CHECK THE LH REAR WINDOW OPERATION FROM THE LH FRONT WINDOW CONTROL SWITCH
- Ignition ON.
- Operate the LH rear window from the LH front window control switch.
Does the LH rear window operate from the LH front window control switch?
Yes
GO to E8.
No
GO to E2.
E2 CHECK THE POWER TO THE WINDOW MOTOR
- Ignition OFF.
- Disconnect: LH Rear Window Motor C703.
- Measure the voltage between LH rear window motor C703-1, circuit SBB29 (GY/RD), harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to E3.
No
VERIFY Battery Junction Box (BJB) fuse 29 (30A) is OK. If OK, REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
If not OK, Refer to the Wiring Diagrams to identify the possible causes of the circuit short. REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation. Electrical Diagrams
E3 CHECK THE LH REAR WINDOW MOTOR DELAYED ACCESSORY FEED
- Ignition ON.
- Measure the voltage between LH rear window motor C703-3, circuit CBP41 (BU), harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to E4.
No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E4 CHECK THE LH REAR WINDOW MOTOR GROUND
- Ignition OFF.
- Measure the resistance between LH rear window motor C703-2, circuit GD133 (BK), harness side and ground.
Is the resistance less than 5 ohms?
Yes
GO to E5.
No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E5 CHECK CIRCUIT CPW15 (YE) FOR AN OPEN
- Disconnect: LH Front Window Control Switch C504.
- Measure the resistance between LH rear window motor C703-5, circuit CPW15 (YE), harness side and LH front window control switch C504-14, circuit CPW15 (YE), harness side.
Is the resistance less than 5 ohms?
Yes
GO to E6.
No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E6 CHECK CIRCUIT CPW16 (BU/OG) FOR AN OPEN
- Measure the resistance between LH rear window motor C703-4, circuit CPW16 (BU/OG), harness side and LH front window control switch C504-6, circuit CPW16 (BU/OG), harness side.
Is the resistance less than 5 ohms?
Yes
GO to E7.
No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E7 CHECK THE LH FRONT WINDOW CONTROL SWITCH
- Carry out the LH front window control switch component test.
Did the LH front window control switch pass the component test?
Yes
INSTALL a new LH rear window regulator motor. REFER to Window Regulator Motor - Rear Door . INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
No
INSTALL a new LH front window control switch. REFER to Window Control Switch . INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E8 CHECK THE POWER TO THE LH REAR WINDOW CONTROL SWITCH
NOTE: Make sure the LH window control switch is in the UNLOCK position.
- Ignition OFF.
- Disconnect: LH Rear Window Control Switch C701.
- Ignition ON.
- Measure the voltage between LH rear window control switch C701-1, circuit CPW14 (VT/WH), harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to E9.
No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E9 CHECK CIRCUIT CPW15 (YE) FOR AN OPEN
- Ignition OFF.
- Measure the resistance between LH rear window motor C703-5, circuit CPW15 (YE), harness side and LH rear window control switch C701-3, circuit CPW15 (YE), harness side.
Is the resistance less than 5 ohms?
Yes
GO to E10.
No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E10 CHECK CIRCUIT CPW16 (BU/OG) FOR AN OPEN
- Measure the resistance between LH rear window motor C703-4, circuit CPW16 (BU/OG), harness side and LH rear window control switch C701-2, circuit CPW16 (BU/OG), harness side.
Is the resistance less than 5 ohms?
Yes
GO to E11.
No
REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
E11 CHECK THE LH REAR WINDOW CONTROL SWITCH
- Carry out the LH rear window control switch component test.
Did the LH front window control switch pass the component test?
Yes
INSTALL a new LH rear window regulator motor. REFER to Window Regulator Motor - Rear Door . INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
No
INSTALL a new LH rear window control switch. REFER to Window Control Switch . INITIALIZE the LH rear window motor. REFER to Window Motor Initialization . TEST the system for normal operation.