Ford 2001 Ranger, Manual

Page: 634 / 1218

414-03B-31 414-03B-31 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
TEST STEP ACTION TO TAKE
•
Reinstall the HVPDB cover. No = REPLACE the DC/DC
•
With key ON, monitor BCM PID LEAKRES. converter. REFER to Section
•
Wait approximately 50 seconds. 414-02.
•
Does the LEAKRES PID indicate less than 50,000 ohms?
A23 CHECK FOR CURRENT LEAKAGE IN TRACTION BATTERY
CHARGER
•
With key OFF, remove the HVPDB cover and disconnect HVPDB Yes = REPLACE the HVPDB.
C1923 (to traction battery charger).
•
Reinstall the HVPDB cover. No = REPLACE the traction
•
With key ON, monitor BCM PID LEAKRES. battery charger.
•
Wait approximately 50 seconds.
•
Does the LEAKRES PID indicate less than 50,000 ohms?
A24 CHECK FOR CURRENT LEAKAGE IN TRACTION BATTERY
SUPPORT TRAY, TIM, OR TRACTION MOTOR
•
With key OFF, disconnect the traction battery high-voltage two-pin Yes = GO to A27 (leakage is in
C3994 and connect Traction Battery High-Voltage Lockout and traction battery support
Diagnostic Tool to the traction battery high-voltage two-pin C3994M. tray).
•
With key ON, monitor BCM PID LEAKRES. No = GO to A25 (leakage is in
•
Wait approximately 50 seconds. TIM or traction motor).
•
Does the LEAKRES PID indicate less than 50,000 ohms?
A25 CHECK FOR CURRENT LEAKAGE IN TIM OR TRACTION
MOTOR
•
With key OFF, disconnect the traction motor three-phase cables from the Yes = GO to A26 (leakage is in
TIM, and reconnect the traction battery high-voltage two-pin C3994. TIM or high-voltage cables
to TIM).
•
With key ON, monitor BCM PID LEAKRES. No = REPLACE the
•
Wait approximately 50 seconds. motor/transaxle. REFER to
•
Does the LEAKRES PID indicate less than 50,000 ohms?
Section 303-01.
A26 CHECK FOR CURRENT LEAKAGE IN TIM OR
HIGH-VOLTAGE CABLES LEADING TO TIM
•
With key OFF, check the high-voltage cables to the TIM to see if the Yes = REPLACE high-voltage
positive (+) or negative (-) cables are touching chassis ground. harness (14B322).
•
Are any of the cables touching chassis ground?
No = REPLACE the TIM. REFER
to Section 303-14.
A27 CHECK FOR CURRENT LEAKAGE IN HIGH-VOLTAGE
NEGATIVE BUS (TB-) (INSIDE TRACTION BATTERY SUPPORT
TRAY)
NOTE: The BCM active command CHARGER must be sent before the
Yes = GO to A28 (leakage is in
BCM active command NEG MAIN is sent.
battery module voltage sense
•
With key ON, enter BCM active command mode CONTACTOR
lines or contactor box).
OUTPUT CONTROL, monitor BCM PID LEAKRES, and set the active
command CHARGER to CLOSE.
•
Set the active command NEG MAIN to OPEN. No = REPLACE the contactor
•
Wait approximately 50 seconds. box.
•
Does the LEAKRES PID indicate less than 50,000 ohms?
A28 CHECK FOR CURRENT LEAKAGE IN BATTERY MODULE
VOLTAGE SENSE LINES
•
With key ON, monitor BCM PID LEAK ID and note the indicated Yes = REPLACE high-voltage
battery module. harness (10B694) and/or the
high-voltage harness
(14A280) in question.
(Continued)
2001 Ranger EV, 01/2001