Pinpoint Test B: All Power Windows Are Inoperative - Edge
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
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 VOLTAGE TO THE LH FRONT WINDOW CONTROL SWITCH
- Disconnect: LH Front Window Control Switch C504A.
- Ignition ON.
- Measure the voltage between LH front window control switch C504A-2 , circuit CBP01 (BU), harness side and ground.
Is the voltage greater than 10 volts?
- Yes : GO to B3.
- No
: VERIFY circuit breaker 48 (30A) is OK. If OK, GO to B2
.
If not OK, REFER to the SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short. REPAIR the circuit. TEST the system for normal operation.
- B2 CHECK THE LH FRONT WINDOW CONTROL SWITCH VOLTAGE CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: BCM C2280D.
- Measure the resistance between BCM C2280D-27 , circuit CBP01 (BU), harness side and LH front window control switch C504A-2 , circuit CBP01 (BU), harness side.
Is the resistance less than 5 ohms?
- Yes : GO to PINPOINT TEST L to diagnose the accessory delay relay circuit.
- No : REPAIR the circuit. TEST the system for normal operation.
- B3 CHECK THE LH FRONT WINDOW CONTROL SWITCH GROUND CIRCUIT
- Ignition OFF.
- Disconnect: LH Front Window Control Switch C504B.
- Measure the resistance between LH front window control switch C504B-7 , circuit GD133 (BK), harness side and ground.
Is the resistance less than 5 ohms?
- Yes
: INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH .
TEST the system for normal operation.
- No : REPAIR the circuit. TEST the system for normal operation.