Ford 2001 Ranger, Manual

Page: 417 / 1218

414-03A-14 414-03A-14 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST B: DTC C1862 CONTACTOR CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
If other BCM DTCs occur,
REFER to the BCM DTC
Index in Section 100-07.
B2 CHECK FOR TRACTION INVERTER MODULE (TIM)
PRECHARGE FAULT
•
With key ON, monitor TIM PID PRECH F. Yes = GO to B3.
•
Does the PRECH F PID indicate YES?
No = GO to B11.
B3 CHECK STATUS OF TIM PRECHARGE BUS VOLTAGE
•
With key ON, monitor TIM PID BAT PV. Yes = GO to B4.
•
Does the BAT PV PID indicate less than 50 volts?
No = GO to B10.
B4 CHECK PRECHARGE CONTACTOR RELAY
•
Enter the TIM active command mode CONTACTOR OUTPUT Yes = GO to B5.
CONTROL, monitor the TIM PID BAT PV, and set the active
command PRECHG IN to CLOSE.
•
Does the BAT PV PID indicate less than 50 volts?
No = GO to B10.
B5 CHECK TIM PRECHARGE CONTACTOR CONTROL SIGNAL
TO TRACTION BATTERY SUPPORT TRAY
•
With key OFF, disconnect traction battery support tray in-line C1939 and Yes = GO to B8.
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.
•
With key ON, measure the voltage between BOB pin 22 and ground No = GO to B6.
(BOB pin 65).
•
Is the voltage greater than 10 volts?
B6 CHECK CIRCUIT 3991 (T) BETWEEN TIM AND TRACTION
BATTERY SUPPORT TRAY FOR OPEN
•
With key OFF, disconnect TIM C4998 and measure the resistance of the Yes = GO to B7.
T wire between pin 18 on TIM C4998 and BOB pin 22.
•
Is the resistance less than 5 ohms?
No = REPAIR the T wire.
B7 CHECK CIRCUIT 3991 (T) BETWEEN TIM AND TRACTION
BATTERY SUPPORT TRAY FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin 22 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 T wire.
B8 CHECK CIRCUIT 3991 (T) BETWEEN CONTACTOR BOX AND
TRACTION BATTERY SUPPORT TRAY FOR OPEN
•
With key OFF, disconnect the BOB from traction battery support tray Yes = GO to B9.
in-line C1939F and in-line C1939M and remove the traction battery.
No = REPAIR the T 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.
•
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 T wire between pin 18 on contactor box C1982 and
BOB pin 22.
•
Is the resistance less than 5 ohms?
B9 CHECK CIRCUIT 3991 (T) BETWEEN CONTACTOR BOX AND
TRACTION BATTERY SUPPORT TRAY FOR SHORT TO GROUND
(Continued)
2001 Ranger EV, 01/2001