Is the voltage greater than 10 volts?
Yes
GO to
D4
.
No
REPAIR circuit 1052 (T/BK). CLEAR the DTCs. TEST the system for normal operation.
D4
CHECK THE VOLTAGE TO THE GEM/CTM — CIRCUIT 1001 (W/Y)
GEM/CTM C224
Measure the voltage between GEM/CTM C224-11, circuit 1001 (W/Y), and ground.
Is the voltage greater than 10 volts?
Yes
GO to
D5
.
No
REPAIR circuit 1001 (W/Y). CLEAR the DTCs. TEST the system for normal operation.
D5
CHECK CIRCUIT 570 (BK/W) FOR OPEN
GEM/CTM C224
Measure the resistance between GEM/CTM C221-14, circuit 570 (BK/W), and ground; and between GEM/CTM
C221-26, circuit 570 (BK/W), and ground.
Are the resistances less than 5 ohms?
Yes
GO to
D6
.
No
REPAIR circuit 570 (BK/W). CLEAR the DTCs. TEST the system for normal operation.
D6
CHECK CIRCUIT 519 (LG/BK) OR 57 (BK) FOR OPEN
Measure the resistance between GEM/CTM C224-18, circuit 519 (LG/BK) or 57 (BK), and ground.
Page 48 of 62
2000 Ranger Workshop Manual
1/18/2012
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSYL/~MUS~LEN/21/...