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Pinpoint Test E: A Single Power Window is Inoperative - LH or RH Rear




Glass, Frames and Mechanisms

Pinpoint Tests

Pinpoint Test E: A Single Power Window is Inoperative - LH or RH Rear

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

Normal Operation

The LH and RH rear window control switches receive power from the LH front window control switch when the window lock switch is set to the UNLOCK position. Ground is also provided to the LH and RH rear window control switches from the LH front window control switch. The LH and RH rear window control switches transfer power and ground to their respective rear window motors. Window direction is controlled by reversing polarity of the voltage and ground circuits being supplied to the window motor.

When operating the LH or RH rear window from the LH front window control switch, power and ground is sent from the LH front window control switch through the normally closed contacts within the LH or RH rear window control switch to operate the LH or RH 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
- LH front window control switch
- LH or RH rear door window motor
- LH or RH rear window control switch

PINPOINT TEST E: A SINGLE POWER WINDOW IS INOPERATIVE - LH OR RH REAR

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

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E1 CHECK THE VOLTAGE TO THE LH OR RH REAR WINDOW CONTROL SWITCH

- Disconnect: Inoperative Rear Window Control Switch C701 (LH) or C801 (RH).
- Ignition ON.

- NOTE: Set the window lock switch to the UNLOCK position.

- For an inoperative LH rear window, measure the voltage between LH rear window control switch C701-3, circuit CPW14 (VT/WH), harness side and ground.




- NOTE: Set the window lock switch to the UNLOCK position.

- For an inoperative RH rear window, measure the voltage between RH rear window control switch C801-3, circuit CPW14 (VT/WH), harness side and ground.




- Is the voltage greater than 10 volts?

Yes
GO to E2.

No
REPAIR the circuit. TEST the system for normal operation.

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E2 CHECK THE GROUNDS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH

- Ignition OFF.
- For an inoperative LH rear window, measure the resistance between LH rear window control switch C701-6, circuit CPW16 (BU/OG), harness side and ground; and between LH rear window control switch C701-1, circuit CPW15 (YE), harness side and ground.




- For an inoperative RH rear window, measure the resistance between RH rear window control switch C801-6, circuit CPW18 (GY/VT), harness side and ground; and between RH rear window control switch C801-1, circuit CPW17 (BN/GN), harness side and ground.




- Are the resistances less than 5 ohms?

Yes
GO to E3.

No
REPAIR the circuit(s). TEST the system for normal operation.

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E3 CHECK THE CIRCUITS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH FOR AN OPEN

- Ignition OFF.
- Disconnect: LH Front Window Control Switch C504B.
- For an inoperative LH rear window, measure the resistance between LH front window control switch C504B, harness side and LH rear window control switch C701, harness side using the following chart:








- For an inoperative RH rear window, measure the resistance between LH front window control switch C504B, harness side and RH rear window control switch C801, harness side using the following chart:








- Are the resistances less than 5 ohms?

Yes
GO to E4.

No
REPAIR the circuit(s). TEST the system for normal operation.

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E4 CHECK THE INOPERATIVE WINDOW CONTROL SWITCH

NOTE: Set the window lock switch to the UNLOCK position.

- Ignition ON.
- For an inoperative RH rear window, connect a fused jumper wire between RH rear window control switch C801-1, circuit CPW17 (BN/GN) and RH rear window control switch C801-5, circuit CPW24 (WH/VT); and between RH rear window control switch C801-3, circuit CPW14 (VT/WH) and RH rear window control switch C801-2, circuit CPW23 (GY). The RH rear window should operate in the downward direction.




- For an inoperative LH rear window, connect a fused jumper wire between LH rear window control switch C701-1, circuit CPW15 (YE) and LH rear window control switch C701-5, circuit CPW22 (GN/VT); and between LH rear window control switch C701-3, circuit CPW14 (VT/WH) and LH rear window control switch C701-2, circuit CPW21 (BN). The LH rear window should operate in the downward direction.




- For an inoperative RH rear window, connect a fused jumper wire between RH rear window control switch C801-6, circuit CPW18 (GY/VT) and RH rear window control switch C801-2, circuit CPW23 (GY); and between RH rear window control switch C801-3, circuit CPW14 (VT/WH) and RH rear window control switch C801-5, circuit CPW24 (WH/VT). The RH rear window should operate in the upward direction.




- For an inoperative LH rear window, connect a fused jumper wire between LH rear window control switch C701-6, circuit CPW16 (BU/OG) and LH rear window control switch C701-2, circuit CPW21 (BN); and between LH rear window control switch C701-3, circuit CPW14 (VT/WH) and LH rear window control switch C701-5, circuit CPW22 (GN/VT). The LH rear window should operate in the upward direction.




- Does the window operate correctly?

Yes
If the rear window did not operate with the rear window control switch, INSTALL a new rear window control switch. If the rear window operated with the rear window control switch but not with the LH front window control switch, INSTALL a new LH front window control switch. REFER to Window Control Switch Service and Repair. TEST the system for normal operation.

No
GO to E5.

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E5 CHECK THE POWER WINDOW MOTOR CIRCUITS

- Ignition OFF.
- Disconnect: Inoperative Rear Window Motor C703 (LH) or C803 (RH).
- For an inoperative LH rear window motor, measure the resistance between LH rear window control switch C701-5, circuit CPW22 (GN/VT) and LH rear window motor C703-2, circuit CPW22 (GN/VT), harness side.
- For an inoperative RH rear window motor, measure the resistance between RH rear window control switch C801-5, circuit CPW24 (WH/VT) and RH rear window motor C803-2, circuit CPW24 (WH/VT), harness side.




- For an inoperative LH rear window motor, measure the resistance between LH rear window control switch C701-2, circuit CPW21 (BN) and LH rear window motor C703-1, circuit CPW21 (BN), harness side.
- For an inoperative RH rear window motor, measure the resistance between RH rear window control switch C801-2, circuit CPW23 (GY) and RH rear window motor C803-1, circuit CPW23 (GY), harness side.




- Are the resistances less than 5 ohms?

Yes
INSTALL a new RH or LH rear window motor. REFER to Window Regulator and Motor - Rear Door Window Regulator and Motor - Rear Door. TEST the system for normal operation.

No
REPAIR the circuit(s). TEST the system for normal operation.

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