Ford Electric Ranger 2001 Manual page 815

418-00-7
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST C: THE MODULE DOES NOT RESPOND TO THE NGS TESTER — INTERFACE
ADAPTER ASSEMBLY (IAA) MODULE
• With key OFF, disconnect IAA module C1945 and NGS Tester. Inspect
IAA module C1945 and data link connector (DLC) C209 for damage.
• Connect 104-Pin Breakout Box (BOB) to IAA module C1945; leave IAA
module disconnected.
• With key OFF, measure the voltage between BOB pins 75, 76 and
ground (BOB pin 80). (V > 10 volts)
• With key OFF, measure the resistance between BOB pins 80, 81, 87 and
ground. (R < 5 ohms)
• Is everything OK?
C2 CHECK CIRCUITS 914 (T/O) AND 915 (PK/LB) BETWEEN DLC
C209 AND IAA MODULE C1945 FOR OPEN(S)
• With key OFF, measure the resistance of the T/O wire between pin 2 on
DLC C209 and BOB pin 28.
• With key OFF, measure the resistance of the PK/LB wire between pin 10 No =
on DLC C209 and BOB pin 27.
• Are the connectors OK and are the resistances less than 5 ohms?
C3 CHECK IAA MODULE C1945 CONNECTION
• Remove the BOB, reconnect IAA module C1945, and rerun DATA
LINK DIAGNOSTICS Network Test.
• Does the IAA module respond to NGS Tester?
C4 CHECK CIRCUITS 914 (T/O) AND 915 (PK/LB) BETWEEN
IN-LINE C136M AND IAA MODULE C1945 FOR OPEN
• With key OFF, disconnect in-line C136 and inspect C136M and C136F
for damage.
• With key OFF, measure the resistance of the T/O wire between pin 25
on in-line C136M and BOB pin 28.
• With key OFF, measure the resistance of the PK/LB wire between pin 21
on in-line C136M and BOB pin 27.
• Are the connectors OK and are the resistances less than 5 ohms?
PINPOINT TEST D: THE MODULE DOES NOT RESPOND TO THE NGS TESTER — TRACTION INVERTER
MODULE (TIM)
D1 CHECK FUSE, POWER, AND GROUND TO TRACTION
INVERTER MODULE (TIM)
• Check 10A fuse 9, and 7.5A fuse 11 and 7.5 fuse 24 the I/P fuse panel.
(Continued)
Module Communications Network
TEST STEP
TEST STEP
ACTION TO TAKE
No = REPAIR as necessary.
Yes = GO to C3.
GO to C4.
Yes = System OK.
No = REPLACE the IAA module.
REFER to Section
Yes = REPAIR the wire in
question between in-line
C136F and DLC C209.
REFER to Communication
Circuit Wiring Repair —
Module in Section 418-00
of the 2001 Ranger
Workshop Manual.
No = REPAIR the connectors
and/or the wire in question
between in-line C136M and
IAA module C1945. REFER
to Communication Circuit
Wiring Repair — Module in
Section 418-00 of the 2001
Ranger Workshop Manual.
ACTION TO TAKE
GO to D2.
Yes =
2001 Ranger EV, 01/2001
418-00-7
412-04.