Ford 2003 Mustang Workshop Manual page 3502

Is the voltage greater than 10 volts?
B13 CHECK THE COURTESY LAMP OPERATION — MONITOR
THE GEM PID DOMESW
Monitor the GEM PID DOMESW, while moving the interior
lamp switch from the OFF to the ON position.
Does the GEM PID DOMESW value always indicate ON?
B14 CHECK CIRCUIT 706 (GY) FOR OPEN
Disconnect: GEM C201e.
Measure the voltage between GEM C201e Pin 21, Circuit 706
(GY), harness side and ground.
Is the voltage greater than 10 volts?
B15 CHECK CIRCUIT 706 (GY) FOR SHORT TO BATTERY
Measure the voltage between GEM C201e Pin 21, Circuit 706
(GY), harness side and ground.
Is the voltage greater than 10 volts?
B16 CHECK CIRCUIT 486 (BN/WH) FOR OPEN OR SHORT TO
GROUND — MONITOR THE GEM PID DECKLID
Monitor the GEM PID DECKLID, while opening and closing
the luggage compartment lid.
Does the GEM PID DECKLID agree with the luggage
compartment lid position?
Yes
GO to B15 .
No
GO to B14 .
Yes
INSTALL a new GEM. For
additional information,
REFER to Section 419-
10 . REPEAT the self-test.
CLEAR the DTCs.
No
REPAIR the circuit.
REPEAT the self-test.
CLEAR the DTCs.
Yes
REPAIR the circuit.
REPEAT the self-test.
CLEAR the DTCs.
No
INSTALL a new GEM. For
additional information,
REFER to Section 419-
10 . REPEAT the self-test.
CLEAR the DTCs.
Yes
GO to B17 .
No
GO to B19 .