Ford 2003 Mustang Workshop Manual page 3726

Is the resistance less than 5 ohms?
D12 CHECK CIRCUIT 226 (WH/BK) FOR AN OPEN
Disconnect: GEM C201a.
Measure the resistance between GEM C201a pin 2, circuit
226 (WH/BK), harness side and driver window regulator motor
C518, circuit 226 (WH/BK), harness side.
Is the resistance less than 5 ohms?
D13 CHECK CIRCUIT 400 (LB/BK) FOR AN OPEN TO THE GEM
Key in OFF position.
Disconnect: CJB Circuit Breaker 43 (20A).
Measure the resistance between GEM C021a pin 4, circuit
400 (LB/BK), harness side and CJB circuit breaker 43 (20A)
output pin, circuit 400 (LB/BK).
Is the resistance less than 5 ohms?
PINPOINT TEST E: A SINGLE POWER WINDOW IS INOPERATIVE —
DRIVER, COUPE
E1 CHECK THE IGNITION SWITCH INPUT TO THE GEM
Select GEM PID IGN_A, IGN_R, IGN_S and IGN_KEY.
Insert the ignition key in the ignition switch and turn to each
Test Step
Yes
GO to D13 .
No
REPAIR the circuit. TEST
the system for normal
operation.
Yes
INSTALL a new GEM.
REFER to Section 419-
10 . TEST the system for
normal operation.
No
REPAIR the circuit. TEST
the system for normal
operation.
Result / Action to Take
Yes
GO to E2 .