D1
CHECK OPERATION OF THE ONE-TOUCH DOWN RELAY
Operate the driver power window control switch to the second detent in the DOWN position.
Does the relay click?
Yes
GO to
D2
.
No
GO to
D3
.
D2
CHECK FOR IGNITION VOLTAGE TO THE ONE-TOUCH DOWN RELAY
One-touch Down Relay C738
Operate the driver power window control switch to the second detent in the DOWN position.
Measure the voltage between the one-touch down relay C738 pin 4, circuit 15S-AJ42 (GN/BK), harness side and ground.
Is the voltage greater than 10 volts?
Yes
INSTALL a new one-touch down relay. TEST the system for normal operation.
No
REPAIR circuit 15S-AJ42 (GN/BK). TEST the system for normal operation.
D3
CHECK FOR VOLTAGE TO THE ONE-TOUCH DOWN RELAY
One-touch Down Relay C738
Operate the driver power window control switch to the second detent in the DOWN position.
Measure the voltage between the one-touch down relay C738 pin 3, circuit 15S-AJ40 (GN/BU), harness side and ground.
Is the voltage greater than 10 volts?
Yes
INSTALL a new one-touch down relay. TEST the system for normal operation.
No
Page 9 of 17
2001 Focus Workshop Manual
8/21/2010
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS1Y/~MUS~LEN/20/S...
