Ford Electric Ranger 2001 Manual page 819

418-00-11
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST F: NO MODULE/NETWORK COMMUNICATION — SCP LINK
• With key OFF, reconnect in-line C1939 and disconnect BCM C1987.
• Connect 104-Pin Breakout Box (BOB) to IAA module C1945; leave IAA No =
module disconnected.
• With key ON, measure the voltage between BOB pin 27 and ground
(BOB pin 80).
• With key ON, measure the voltage between BOB pin 28 and ground
(BOB pin 80).
• Are any of the voltages greater than 0 volts?
F7 CHECK CIRCUITS 914 (T/O) AND 915 (PK/LB) FOR SHORT(S)
TO GROUND
• With key OFF, measure the resistance between BOB pin 27 and ground
(BOB pin 80).
• With key OFF, measure the resistance between BOB pin 28 and ground
(BOB pin 80).
• Are the resistances greater than 10,000 ohms?
PINPOINT TEST G: NO MODULE/NETWORK COMMUNICATION
G1 CHECK NGS TESTER CONNECTOR AND DATA LINK
CONNECTOR (DLC) C209
• With key OFF, disconnect NGS Tester. Inspect NGS terminals and DLC
C209 pins for damage.
• Is everything OK?
G2 CHECK FUSE, IGNITION POWER, AND GROUND TO DLC C209
• Check 7.5A fuse 5 in the I/P fuse panel.
• With key OFF, disconnect the NGS tester and measure the resistance
between pin 5 (BK/W wire) on DLC C209 and ground. (R < 5 ohms)
• With key ON, measure the voltage between pin 16 (O wire) on DLC
C209 and ground. (V > 10 volts)
• Are the values correct?
Module Communications Network
TEST STEP
TEST STEP
ACTION TO TAKE
Yes = REPAIR the wire(s) in
question.
GO to F7.
Yes = REPAIR the T/O wire
between DLC C209 and
S2992 and/or the PK/LB
wire between DLC C209
and S2990 for an open.
No = REPAIR the wire(s) in
question.
ACTION TO TAKE
Yes = GO to G2.
No = REPAIR as necessary.
Yes = REPAIR or REPLACE the
NGS Tester.
No = REPAIR as necessary.
2001 Ranger EV, 01/2001
418-00-11