Ford 2001 Ranger, Manual

Page: 423 / 1218

414-03A-20 414-03A-20 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC B2517 EMERGENCY POWER OFF SYSTEM FAULTED
TEST STEP ACTION TO TAKE
•
With key OFF, disconnect traction battery support tray in-line C1939 and No = REMOVE the traction
connect BOB to traction battery support tray in-line C1939F and in-line battery and REPAIR circuit
C1939M using Traction Battery Low-Voltage Service Cord. 3006 (P/LG wire) between
•
With key ON, measure the voltage between BOB pin 19 and ground the contactor box and
(BOB pin 65). traction battery support tray
•
Is the voltage greater than 10 volts?
in-line C1939F.
A5 CHECK TRACTION INVERTER MODULE (TIM) EMERGENCY
POWER OFF (EPO) STATUS
•
With key ON, monitor TIM PID EMG PO. Yes = GO to A13.
•
Does the EMG PO PID indicate ENABLE?
No = GO to A6.
A6 CHECK POWER TO IN-LINE C1948
•
With key OFF, disconnect two-pin in-line C1948 (located behind the Yes = RECONNECT in-line
high-voltage power distribution box ) and measure the voltage between C1948. GO to A9.
the O wire on in-line C1948F and ground.
•
Is the voltage greater than 10 volts?
No = GO to A7.
A7 CHECK POWER TO INERTIA SWITCH
•
With key OFF, disconnect inertia switch C249 and measure the voltage Yes = GO to A8.
between the LB/W wire on inertia switch C249 and ground.
•
Is the voltage greater than 10 volts?
No = REPAIR the LB/W wire.
A8 CHECK INERTIA SWITCH
•
Measure the resistance between the LB/W wire terminal and O wire Yes = REPAIR the O wire
terminal on the inertia switch with the inertia switch in the deactivated between the inertia switch
(depressed) position. and in-line C1948F.
•
Is the resistance less than 5 ohms?
No = REPLACE the inertia
switch.
A9 CHECK POWER TO TRACTION BATTERY SUPPORT TRAY
•
With key OFF, disconnect high-voltage auxiliary load in-line C1935 on Yes = GO to A12.
the traction battery support tray and measure the voltage between the R
wire on in-line C1935M and ground.
•
Is the voltage greater than 10 volts?
No = GO to A10.
A10 CHECK POWER TO POWER STEERING ASSEMBLY
•
With key OFF, disconnect power steering assembly high-voltage C1895 Yes = GO to A11.
and measure the voltage between the DG wire on power steering
assembly C1895 and ground.
•
Is the voltage greater than 10 volts?
No = REPLACE the HVPDB.
A11 CHECK POWER STEERING ASSEMBLY INTERLOCK JUMPER
•
With key OFF, measure the resistance between the DG wire terminal and Yes = REPLACE the HVPDB.
R wire terminal on the power steering assembly.
•
Is the resistance less than 5 ohms?
No = REPLACE the power
steering assembly.
A12 CHECK POWER TO CONTACTOR BOX
•
Remove the traction battery and connect Traction Battery High-Voltage Yes = REPLACE the contactor
Lockout and Diagnostic Tool to the traction battery high-voltage two-pin box.
C3994M.
•
Connect Traction Battery High-Voltage Service Cord to high-voltage No = REPAIR the R wire between
auxiliary load in-line C1935F on the traction battery support tray and the contactor box and in-line
in-line C1935M. C1935F.
(Continued)
2001 Ranger EV, 01/2001