Ford 2001 Ranger, Manual

Page: 411 / 1218

414-03A-8 414-03A-8 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1862 CONTACTOR CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
•
Remove the traction battery and connect Traction Battery High-Voltage No = REPLACE the contactor
Lockout and Diagnostic Tool to traction battery high-voltage two-pin box.
C3994M.
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 Traction Battery High-Voltage Service Cord to traction battery
support tray in-line C1935F and in-line C1935M.
•
Connect 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.
•
With key ON, measure the voltage between BOB pin 17 and ground
(BOB pin 65).
•
Is the voltage greater than 0 volts?
A13 CHECK AUXILIARY CONTACTOR RELAY FEEDBACK
STATUS
•
With key ON, monitor IAA module AUXCN I. Yes = REPLACE the IAA module.
REFER to Section 412-04.
•
Does the AUXCN I PID indicate ENABLED?
No = System OK. CHECK wiring
for intermittent connections.
A14 CHECK AUXILIARY CONTACTOR RELAY STATUS SIGNAL
(OPEN FAULT)
•
Connect 104-Pin Breakout Box (BOB) to IAA module and IAA module Yes = System OK. CHECK wiring
C1945. for intermittent connections.
•
Enter IAA module active command mode AUXILIARY SYSTEM No = GO to A15.
CONTROL, set the active command AUX CONT to CLOSE, and
measure the voltage between BOB pin 26 and ground (BOB pin 80).
•
Is the voltage greater than 10 volts?
A15 CHECK AUXILIARY CONTACTOR RELAY CONTROL SIGNAL
(OPEN FAULT)
•
Enter IAA module active command mode AUXILIARY SYSTEM Yes = GO to A18.
CONTROL, set the active command AUX CONT to CLOSE, and
measure the voltage between BOB pin 42 and ground (BOB pin 80).
•
Is the voltage greater than 10 volts?
No = GO to A16.
A16 CHECK CIRCUIT 3998 (GY) FOR SHORT TO GROUND
•
Disconnect BOB from IAA module; leave BOB connected to IAA Yes = REPLACE the IAA module.
module C1945. REFER to Section 412-04.
•
With key OFF, measure the resistance between BOB pin 42 and ground No = GO to A17.
(BOB pin 80).
•
Is the resistance greater than 10,000 ohms?
A17 CHECK CIRCUIT 3998 (GY) BETWEEN IAA MODULE AND
TRACTION BATTERY SUPPORT TRAY FOR SHORT TO GROUND
•
With key OFF, disconnect traction battery support tray in-line C1939. Yes = REMOVE the traction
battery and REPAIR the GY
wire between the contactor
box and in-line C1939F.
•
With key OFF, measure the resistance between BOB pin 42 and ground No = REPAIR the GY wire
(BOB pin 80). between the IAA module
•
Is the resistance greater than 10,000 ohms?
and in-line C1939M.
(Continued)
2001 Ranger EV, 01/2001