Ford Electric Ranger 2001 Manual page 442

414-03A-39
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
• With key ON, monitor BCM PID LEAK ID and note the indicated
battery module.
NOTE: If there is no continuity between the indicated battery module and
chassis ground, check for continuity between chassis ground and the
positive (+) posts of the two battery modules before and after the indicated
battery module.
• With key OFF, disconnect BCM C1865 and C1866, and check for
continuity between the positive (+) post of the indicated battery module
and chassis ground.
• Is there continuity?
A59 CHECK FOR CURRENT LEAKAGE IN TRACTION BATTERY
CHARGER OR HVPDB
• With key OFF, remove (if connected) Auxiliary Interlock Tool, and
reconnect in-line interlock C1948 and high-voltage auxiliary load in-line
C1935 to the traction battery support tray.
• With key OFF, remove the high-voltage power distribution box
(HVPDB) cover and disconnect HVPDB C1923 (to traction battery
charger).
• Reinstall the HVPDB cover.
• With key ON, enter BCM active command mode CONTACTOR
OUTPUT CONTROL, monitor BCM PID LKRESB+, and set the active
command CHARGER to CLOSE.
• Wait approximately 50 seconds.
• Does the LKRESB+ PID indicate less than 50,000 ohms?
A60 CHECK FOR CURRENT LEAKAGE IN AUXILIARY LOAD
POSITIVE (+) BUS, CONTACTOR BOX, OR HVPDB
• With key OFF, disconnect high-voltage auxiliary load in-line C1935 on
the traction battery support tray.
• Connect Auxiliary Interlock Tool to the high-voltage auxiliary load
in-line C1935 on the traction battery support tray and in-line interlock
C1948 (located behind the HVPDB).
• With key ON, monitor BCM PID LKRESB+.
• Wait approximately 50 seconds.
• Does the LKRESB+ PID indicate less than 50,000 ohms?
A61 CHECK FOR CURRENT LEAKAGE IN POWER STEERING
ASSEMBLY
• With key OFF, remove Auxiliary Interlock Tool and reconnect in-line
interlock C1948 and high-voltage auxiliary load in-line C1935 to the
traction battery support tray.
• With key OFF, disconnect power steering assembly high-voltage C1895.
• Connect Power Steering Interlock Tool to power steering assembly
C1895.
• With key ON, monitor BCM PID LKRESB+.
• Wait approximately 50 seconds.
• Does the LKRESB+ PID indicate less than 50,000 ohms?
A62 CHECK FOR CURRENT LEAKAGE IN A/C COMPRESSOR
• With key OFF, disconnect A/C inverter motor controller (IMC)
high-voltage C1902 (to A/C compressor).
• With key ON, monitor BCM PID LKRESB+.
• Wait approximately 50 seconds.
• Does the LKRESB+ PID indicate less than 50,000 ohms?
(Continued)
High Voltage/Traction Battery
TEST STEP
414-03A-39
ACTION TO TAKE
Yes = REPLACE high-voltage
harness (10B694) and/or the
high-voltage harness
(14A280) in question.
No = REPLACE the contactor
box.
Yes = REPLACE the HVPDB.
No = REPLACE the traction
battery charger.
Yes = REPLACE the contactor
box.
GO to A61 (leakage is in
No =
auxiliary load + bus or
HVPDB).
GO to A62.
Yes =
No = REPLACE the power
steering assembly. REFER
to Section 211-02.
GO to A63.
Yes =
No = REPLACE the A/C
compressor. REFER to
Section 412-03.
2001 Ranger EV, 01/2001