Ford 2001 Ranger, Manual

Page: 415 / 1218

414-03A-12 414-03A-12 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC B1676 BATTERY PACK VOLTAGE OUT OF RANGE
TEST STEP ACTION TO TAKE
•
With key OFF, disconnect traction battery support tray in-line C1939 and Yes = GO to A3.
connect 104-Pin Breakout Box (BOB) to traction battery support tray
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 between BOB pin 65 and ground. No = REPAIR the BK wire.
•
Is the resistance less than 5 ohms?
A3 CHECK CIRCUIT 57 (BK) FOR OPEN
•
Disconnect the BOB from in-line C1939M and remove the traction Yes = REPLACE the contactor
battery. box.
No = REPAIR the BK wire.
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.
•
Connect BOB to traction battery support tray in-line C1939F using
Traction Battery Low-Voltage Service Cord.
•
With key OFF, disconnect contactor box C1982 and measure the
resistance between pin 8 (BK wire) on contactor box C1982 and BOB
pin 65.
•
Is the resistance less than 5 ohms?
A4 CHECK STATUS OF HIGH-VOLTAGE POWER TO TIM
•
With key ON, monitor TIM PID BAT PV. Yes = System OK. CHECK wiring
for intermittent connections.
•
Turn the ignition key to the START position. No = If less than 50 volts, GO to
•
Does the BAT PV PID indicate between 50 and 385 volts? A5.
If greater than 385 volts,
GO to A12.
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.
(Continued)
2001 Ranger EV, 01/2001