Ford 2001 Ranger, Manual

Page: 635 / 1218

414-03B-32 414-03B-32 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
TEST STEP ACTION TO TAKE
NOTE: If there is no continuity between the indicated battery module and
No = REPLACE the contactor
chassis ground, check for continuity between chassis ground and the
box.
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?
A29 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 A30 (leakage is in
BCM active command NEG MAIN is sent.
contactor box or battery
•
With key ON, enter BCM active command mode CONTACTOR
module voltage sense lines).
OUTPUT CONTROL, monitor BCM PID LKRESB-, and set the active
command CHARGER to CLOSE.
•
Set the active command NEG MAIN to OPEN. No = GO to A32.
•
Wait approximately 50 seconds.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A30 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.
NOTE: If there is no continuity between the indicated battery module and
No = GO to A31.
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?
A31 CHECK FOR CURRENT LEAKAGE IN CONTACTOR BOX
•
With key OFF, disconnect the negative contactor box cable leading to the Yes = REPLACE the BCM.
traction battery 250A high-voltage fuse.
NOTE: The BCM active command CHARGER must be sent before the
No = REPLACE the contactor
BCM active command NEG MAIN is sent.
box.
•
With key ON, enter BCM active command mode CONTACTOR
OUTPUT CONTROL, monitor BCM PID LKRESB-, and set the active
command CHARGER to CLOSE.
•
Set the active command NEG MAIN to OPEN.
•
Wait approximately 50 seconds.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A32 CHECK FOR CURRENT LEAKAGE IN TRACTION BATTERY
SUPPORT TRAY, TRACTION INVERTER MODULE (TIM),
MOTOR/TRANSAXLE, OR IN THE AUXILIARY NEGATIVE BUS
FOR THE HIGH-VOLTAGE AUXILIARY LOAD COMPONENTS
•
With key OFF, disconnect high-voltage auxiliary load in-line C1935 on Yes = GO to A33 (leakage is in
the traction battery support tray. contactor box, TIM, or
traction motor).
(Continued)
2001 Ranger EV, 01/2001