Ford 2003 Mustang Workshop Manual page 3850

B6 CHECK CIRCUITS 129 (LG) AND 1014 (VT) FOR OPEN
Measure the resistance between master window/door lock control
switch C508 Pin 4, Circuit 129 (LG), harness side and GEM C201c
Pin 20, Circuit 129 (LG), harness side; and between master
window/door lock control switch C508 Pin 2, Circuit 1014 (VT),
harness side and GEM C201c 2 Pin 18, Circuit 129 (LG), harness
side.
Are the resistances less than 5 ohms?
B7 CHECK CIRCUIT 326 (WH/VT) FOR VOLTAGE — PASSENGER
SIDE
Disconnect: Passenger Window/Door Lock Control Switch C629.
Measure the voltage between passenger/window door lock control
switch C629 Pin 3, Circuit 326 (WH/VT), harness side and ground.
Is the voltage greater than 10 volts?
B8 CHECK THE PASSENGER POWER DOOR LOCK SWITCH FOR
CORRECT OPERATION
Carry out the passenger window/door lock control switch
component test. REFER to Wiring Diagrams Cell 149, Component
Testing.
Is the master window/door lock control switch OK?
B9 CHECK CIRCUITS 119 (PK/YE) AND 120 (PK/LG) FOR SHORT TO
POWER
Disconnect: GEM C201c.
Measure the voltage between GEM C201c Pin 19, Circuit 119
(PK/YE), harness side and ground; and between GEM C201c Pin
17, Circuit 120 (PK/LG), harness side and ground.
Yes
INSTALL a new
GEM. For additional
information, REFER
to Section 419-10 .
REPEAT the self-
test. CLEAR the
DTCs.
No
REPAIR the circuit in
question. REPEAT
the self-test. CLEAR
the DTCs.
Yes
GO to B8 .
No
REPAIR Circuit 326
(WH/VT). REPEAT
the self-test. CLEAR
the DTCs.
Yes
GO to B9 .
No
INSTALL a new
master window/door
lock control switch.
REPEAT the self-
test. CLEAR the
DTCs.
Yes
REPAIR the circuit in
question. REPEAT
the self-test. CLEAR
the DTCs.
No
GO to B10 .