Ford 2001 Ranger, Manual

Page: 657 / 1218

414-03B-54 414-03B-54 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST N: CHARGER MODE FEEDBACK FAULT
TEST STEP ACTION TO TAKE
•
With key OFF, disconnect traction battery support tray in-line C1939 and Yes = GO to N4.
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, measure the resistance of the W wire between pin 1 on No = REPAIR the W wire.
traction battery charger C1993 and BOB pin 38.
•
Is the resistance less than 5 ohms?
N4 CHECK CIRCUIT 3826 (W) (OUTSIDE OF TRACTION BATTERY
SUPPORT TRAY) FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin 38 and ground Yes = GO to N5.
(BOB pin 65).
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the W wire.
N5 CHECK CIRCUIT 3826 (W) (INSIDE OF TRACTION BATTERY
SUPPORT TRAY) FOR OPEN
•
Disconnect the BOB from in-line C1939M, remove the traction battery, Yes = GO to N6.
and connect Traction Battery High-Voltage Lockout and Diagnostic Tool
to the traction battery high-voltage two-pin C3994M.
No = REPAIR the W wire.
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.
•
Connect 104-Pin Breakout Box (BOB) to traction battery support tray
in-line C1939F using Traction Battery Low-Voltage Service Cord; do not
connect Traction Battery Low-Voltage Service Cord to in-line C1939M.
•
With key OFF, disconnect BCM C1986 and measure the resistance of the
W wire between pin 5 on BCM C1986 and BOB pin 38.
•
Is the resistance less than 5 ohms?
N6 CHECK CIRCUIT 3826 (W) (INSIDE OF TRACTION BATTERY
SUPPORT TRAY) FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin 38 and ground Yes = REPLACE the BCM.
(BOB pin 65).
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the W wire.
N7 CHECK CIRCUIT 3992 (BR/Y) (OUTSIDE OF TRACTION
BATTERY SUPPORT TRAY) FOR OPEN
•
With key OFF, disconnect traction battery support tray in-line C1939 and Yes = GO to N8.
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, measure the resistance of the BR/Y wire between pin 8 No = REPAIR the BR/Y wire.
on traction battery charger C1993 and BOB pin 49.
•
Is the resistance less than 5 ohms?
N8 CHECK CIRCUIT 3992 (BR/Y) (OUTSIDE OF TRACTION
BATTERY SUPPORT TRAY) FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin 49 and ground Yes = GO to N9.
(BOB pin 65).
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the BR/Y wire.
N9 CHECK CIRCUIT 3992 (BR/Y) (INSIDE OF TRACTION
BATTERY SUPPORT TRAY) FOR OPEN
•
Disconnect the BOB from in-line C1939M, remove the traction battery, Yes = GO to N10.
and connect Traction Battery High-Voltage Lockout and Diagnostic Tool
to the traction battery high-voltage two-pin C3994M.
(Continued)
2001 Ranger EV, 01/2001