Ford 2003 Mustang Workshop Manual page 3736

Is the voltage greater than 10 volts?
F16 CHECK CIRCUIT 194 (PK) FOR AN OPEN
Key in OFF position.
Disconnect: Driver Window Regulator Control Switch C537.
Measure the resistance between driver window regulator
control switch C537 pin 16, circuit 194 (PK), harness side and
passenger window regulator control switch C629 pin 8, circuit
194 (PK), harness side.
Is the resistance less than 5 ohms?
PINPOINT TEST G: A SINGLE POWER WINDOW IS INOPERATIVE —
REAR, CONVERTIBLE ONLY
G1 CHECK CIRCUIT 316 (YE/LB) OR 319 (YE/BK) FOR GROUND
Disconnect: Rear Window Regulator Motor C3118 LH or C3119 RH.
Measure the resistance between left rear window regulator motor
C3118, circuit 316 (YE/LB), harness side and ground; or between
right rear window regulator motor C3119, circuit 319 (YE/BK),
harness side and ground.
Is the resistance less than 5 ohms?
Test Step
For convertible, GO to
F16 . For coupe, REPAIR
the circuit. TEST the
system for normal
operation.
Yes
INSTALL a new driver
window regulator control
switch. REFER to
Switch—Window
Regulator Control in this
section. TEST the system
for normal operation.
No
REPAIR the circuit. TEST
the system for normal
operation.
Result / Action to
Take
Yes
GO to G3 .
No
GO to G2 .