Ford 2001 Ranger, Manual

Page: 616 / 1218

414-03B-13 414-03B-13 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC B1676 BATTERY PACK VOLTAGE OUT OF RANGE
TEST STEP ACTION TO TAKE
A5 CHECK MAIN CONTACTOR RELAY
NOTE: The active command PRECHG IN must be sent before sending the Yes =
GO to A6.
active command POS MAIN. If not, New Generation STAR (NGS) Tester
will indicate UNABLE TO PERFORM TEST/FUNCTION.
•
Enter the TIM active command mode CONTACTOR OUTPUT
CONTROL, monitor the TIM PID BAT PV, and set the active
commands PRECHG IN and POS MAIN to CLOSE.
•
Set the active command PRECHG IN to OPEN. No = GO to A12.
•
Does the BAT PV PID indicate less than 50 volts?
A6 CHECK TIM MAIN CONTACTOR CONTROL SIGNAL TO
CONTACTOR BOX AT TRACTION BATTERY SUPPORT TRAY
•
With key OFF, disconnect traction battery support tray in-line C1939 and Yes = GO to A9.
connect 104-Pin Breakout Box (BOB) to traction battery support tray
in-line C1939F and in-line C1939M using Traction Battery Low-Voltage
Service Cord.
•
Turn the ignition key to the START position and measure the voltage No = GO to A7.
between BOB pin 23 and ground (BOB pin 65).
•
Is the voltage greater than 10 volts?
A7 CHECK CIRCUIT 3986 (DG) BETWEEN TIM AND TRACTION
BATTERY SUPPORT TRAY FOR OPEN
•
With key OFF, disconnect TIM C4998 and measure the resistance of the Yes = GO to A8.
DG wire between pin 8 on TIM C4998 and BOB pin 23.
•
Is the resistance less than 5 ohms?
No = REPAIR the DG wire.
A8 CHECK CIRCUIT 3986 (DG) BETWEEN TIM AND TRACTION
BATTERY SUPPORT TRAY FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin 23 and ground Yes = REPLACE the TIM. REFER
(BOB pin 65). to Section 303-14.
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the DG wire.
A9 CHECK CIRCUIT 3986 (DG) BETWEEN CONTACTOR BOX AND
TRACTION BATTERY SUPPORT TRAY FOR OPEN
•
With key OFF, disconnect the BOB from traction battery support tray Yes = GO to A10.
in-line C1939F and in-line C1939M and remove the traction battery.
No = REPAIR the DG 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.
•
Reconnect 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 contactor box C1982 and measure the
resistance of the DG wire between pin 11 on contactor box C1982 and
BOB pin 23.
•
Is the resistance less than 5 ohms?
A10 CHECK CIRCUIT 3986 (DG) BETWEEN CONTACTOR BOX
AND TRACTION BATTERY SUPPORT TRAY FOR SHORT TO
GROUND
•
With key OFF, measure the resistance between BOB pin 23 and ground Yes = GO to A11.
(BOB pin 65).
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the DG wire.
A11 CHECK TRACTION BATTERY HIGH-VOLTAGE FUSE
(Continued)
2001 Ranger EV, 01/2001