Ford 2001 Ranger, Manual

Page: 436 / 1218

414-03A-33 414-03A-33 High Voltage/Traction Battery
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 CONTACTOR BOX OR
BATTERY HEATER HARNESS (IF EQUIPPED)
NOTE: If vehicle is not equipped with traction battery heaters, REPLACE
Yes = REPLACE the contactor
the contactor box.
box.
•
Remove the traction battery and connect Traction Battery High-Voltage
Lockout and Diagnostic Tool to the traction battery high-voltage two-pin
C3994M.
•
Connect Traction Battery Low-Voltage Service Cord to traction battery No = GO to A30 (leakage is in
support tray in-line C1939F and in-line C1939M. battery heater harness).
WARNING: The traction battery contains high-voltage
components and wiring. High-voltage insulated safety gloves and face
shield must be worn when performing the following steps. Failure to
follow this warning may result in severe personal injury or death.
•
With key OFF, disconnect contactor box C1864.
•
With key ON, monitor BCM PID LEAKRES.
•
Wait approximately 50 seconds.
•
Does the LEAKRES PID indicate less than 50,000 ohms?
A30 CHECK FOR CURRENT LEAKAGE IN LOWER BATTERY
HEATER
•
With key OFF, reconnect contactor box C1864 and disconnect lower Yes = GO to A31.
battery heater C1862 and C1863.
•
With key ON, monitor BCM PID LEAKRES. No = REPLACE the lower battery
•
Wait approximately 50 seconds. heater.
•
Does the LEAKRES PID indicate less than 50,000 ohms?
A31 CHECK FOR CURRENT LEAKAGE IN UPPER BATTERY
HEATER
•
With key OFF, disconnect upper battery heater C1859 and C1861. Yes = REPLACE high-voltage
harness (10B700).
•
With key ON, monitor BCM PID LEAKRES. No = REPLACE the upper battery
•
Wait approximately 50 seconds. heater.
•
Does the LEAKRES PID indicate less than 50,000 ohms?
A32 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 A33 (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 A35.
•
Wait approximately 50 seconds.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A33 CHECK FOR CURRENT LEAKAGE IN BATTERY MODULE
VOLTAGE SENSE LINES
(Continued)
2001 Ranger EV, 01/2001