Ford 2001 Ranger, Manual

Page: 654 / 1218

414-03B-51 414-03B-51 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST H: CHARGER UNDER CURRENT FAULT
TEST STEP ACTION TO TAKE
•
Connect the vehicle to the PCS and press the START button to begin No = System OK. CHECK wiring
charging. for intermittent connections.
•
With vehicle on-charge, monitor BCM PID CHG OTF for
approximately five minutes.
•
Does the CHG OTF PID indicate YES?
H12 CHECK CIRCUITS 3401 (DB/LG) AND 3985 (PK) (OUTSIDE OF
TRACTION BATTERY SUPPORT TRAY) FOR OPEN(S)
•
With key OFF, disconnect traction battery support tray in-line C1939 and Yes = GO to H13.
connect 104-Pin Breakout Box (BOB) to in-line C1939M using Traction
Battery Low-Voltage Service Cord; do not connect Traction Battery
Low-Voltage Service Cord to in-line C1939F.
•
With key OFF, disconnect traction battery charger C1991 and C1993. No = REPAIR the wire(s) in
•
With key OFF, measure the resistance of the DB/LG wire between pin 3 question.
on traction battery charger C1993 and BOB pin 63.
•
With key OFF, measure the resistance of the PK wire between pin 3 on
traction battery charger C1991 and BOB pin 50.
•
Are the resistances less than 5 ohms?
H13 CHECK CIRCUITS 3401 (DB/LG) AND 3985 (PK) (OUTSIDE OF
TRACTION BATTERY SUPPORT TRAY) FOR SHORT(S) TO
GROUND
•
With key OFF, measure the resistance between BOB pins 50, 63 and Yes = GO to H14.
ground (BOB pin 65).
•
Are the resistances greater than 10,000 ohms?
No = REPAIR the wire(s) in
question.
H14 CHECK CIRCUITS 3401 (DB/LG) AND 3985 (PK) (INSIDE OF
TRACTION BATTERY SUPPORT TRAY) FOR OPEN(S)
•
Disconnect the BOB from in-line C1939M, remove the traction battery, Yes = GO to H15.
and connect Traction Battery High-Voltage Lockout and Diagnostic Tool
to the traction battery high-voltage two-pin C3994M.
•
Connect 104-Pin Breakout Box (BOB) to traction battery support tray No = REPAIR the wire(s) in
in-line C1939F using Traction Battery Low-Voltage Service Cord; do not question.
connect Traction Battery Low-Voltage Service Cord to in-line C1939M.
WARNING: The traction battery contains high-voltage
components and wiring. High-voltage insulated safety gloves and face
shield must be worn when carrying out the following steps. Failure to
follow this warning may result in severe personal injury or death.
•
With key OFF, disconnect BCM C1986 and C1987.
•
Measure the resistance of the DB/LG wire between pin 11 on BCM
C1986 and BOB pin 63.
•
Measure the resistance of the PK wire between pin 13 on BCM C1986
and BOB pin 50.
•
Are the resistances less than 5 ohms?
H15 CHECK CIRCUITS 3401 (DB/LG) AND 3985 (PK) (INSIDE OF
TRACTION BATTERY SUPPORT TRAY) FOR SHORT(S) TO
GROUND
•
With key OFF, measure the resistance between BOB pins 50, 63 and Yes = REPLACE the traction
ground (BOB pin 65). battery charger.
•
Are the resistances greater than 10,000 ohms?
No = REPAIR the wire(s) in
question.
2001 Ranger EV, 01/2001