Pinpoint Test B : A Single Power Window Is Inoperative - RF, Expedition

NOTE: 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.

B1 CHECK THE VOLTAGE TO THE PASSENGER WINDOW CONTROL SWITCH

Disconnect: RF Window Control Switch C624.

Ignition ON.

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

Measure the voltage between RF window control switch C624-3 , circuit CPW30 (GY/YE), harness side and ground.

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Is the voltage greater than 11 volts?

Yes	GO to B2.
No	REPAIR the circuit. TEST the system for normal operation.

B2 CHECK CIRCUITS CPW13 (BN/YE) AND CPW12 (GN/OG) FOR CONTINUITY TO GROUND

Ignition OFF.

Disconnect: Negative Battery Cable.

Measure the resistance between ground and RF window control switch C624-1 , circuit CPW13 (BN/YE), harness side and ground; and between C624-6 , circuit CPW12 (GN/OG), harness side and ground.

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Are the resistances less than 3 ohms?

Yes	GO to B4.
No	GO to B3.

B3 CHECK CIRCUITS CPW13 (BN/YE) AND CPW12 (GN/OG) FOR AN OPEN

Disconnect: Master Window Control Switch C504A.

Measure the resistance between master window control switch C504A-4 , circuit CPW13 (BN/YE), harness side and RF window control switch C624-1 , circuit CPW13 (BN/YE), harness side.

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Measure the resistance between master window control switch C504A-8 , circuit CPW12 (GN/OG), harness side and RF window control switch C624-6 , circuit CPW12 (GN/OG), harness side.

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Are the resistances less than 3 ohms?

Yes	INSTALL a new master window control switch. REFER to Window Control Switch . TEST the system for normal operation.
No	REPAIR the affected circuit. TEST the system for normal operation.

B4 CHECK THE RF POWER WINDOW SWITCH

Connect: Negative Battery Cable.

Ignition ON.

To operate the window in the upward direction, connect a fused jumper wire between RF window control switch C624-1 , circuit CPW13 (BN/YE), harness side and C624-2 , circuit CPW19 (VT), harness side; and a second fused jumper wire between RF window control switch C624-3 , circuit CPW30 (GY/YE), harness side and C624-5 , circuit CPW20 (WH/OG), harness side.

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To operate the window in the downward direction, connect a fused jumper wire between RF window control switch C624-6 , circuit CPW12 (GN/OG), harness side and C624-5 , circuit CPW20 (WH/OG), harness side; and a second fused jumper wire between RF window control switch C624-3 , circuit CPW30 (GY/YE), harness side and C624-2 , circuit CPW19 (VT), harness side.

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Does the window operate correctly?

Yes	REMOVE the fused jumper wires. INSTALL a new RF window control switch. REFER to Window Control Switch . TEST the system for normal operation.
No	REMOVE the fused jumper wires. GO to B5.

B5 CHECK CIRCUITS CPW19 (VT) AND CPW20 (WH/OG) FOR AN OPEN

Ignition OFF.

Disconnect: RF Window Motor C608.

Measure the resistance between RF window control switch C624-2 , circuit CPW19 (VT), harness side, and RF window motor C608-1 , circuit CPW19 (VT), harness side.

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Measure the resistance between RF window control switch C624-5 , circuit CPW20 (WH/OG), harness side and RF window motor C608-2 , circuit CPW20 (WH/OG), harness side.

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Are the resistances less than 3 ohms?

Yes	INSTALL a new RF window regulator motor. REFER to Window Regulator Motor - Front Door . TEST the system for normal operation.
No	REPAIR the affected circuit. TEST the system for normal operation.