Ford Electric Ranger 2001 Manual page 456

414-03A-53
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST D: CHARGER CHARGING AFTER BEING DISABLED FAULT
• With key OFF, measure the resistance between BOB pin 57 and ground
(BOB pin 65).
• Is the resistance greater than 10,000 ohms?
D5 CHECK CIRCUIT 3827 (GY/W) (INSIDE OF TRACTION
BATTERY SUPPORT TRAY) FOR OPEN
• Disconnect the BOB from in-line C1939M, remove the traction battery,
and connect Traction Battery High-Voltage Lockout and Diagnostic Tool
to the traction battery high-voltage two-pin 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 104-Pin Breakout Box (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 BCM C1986 and measure the resistance of the
GY/W wire between pin 8 on BCM C1986 and BOB pin 57.
• Is the resistance less than 5 ohms?
D6 CHECK CIRCUIT 3827 (GY/W) (INSIDE OF TRACTION
BATTERY SUPPORT TRAY) FOR SHORT TO GROUND
• With key OFF, measure the resistance between BOB pin 57 and ground
(BOB pin 65).
• Is the resistance greater than 10,000 ohms?
PINPOINT TEST E: CHARGER OVER-TEMPERATURE FAULT
E1 CHECK AMBIENT TEMPERATURE
• With key ON, monitor interface adapter assembly (IAA) module PID
INTMP 2.
• Does the INTMP 2 PID indicate greater than 40°C (104°F)?
E2 CHECK FOR CHARGING SYSTEM FAULT AT AMBIENT
(ROOM) TEMPERATURE
• Open the hood and allow the underhood compartment to cool to ambient
(room) temperature.
• Connect the vehicle to the power control station (PCS) and press the
START button to begin charging.
• Wait five minutes and retrieve continuous DTCs from the BCM.
• Does DTC C1838 Charging System Fault occur?
E3 CHECK CHARGER OVER-TEMPERATURE FAULT STATUS
• With key ON, monitor BCM PID CHG OTF.
• Does the CHG OTF PID indicate YES?
PINPOINT TEST F: CHARGER LATCHUP FAULT
F1 CHECK CHARGER OVER-TEMPERATURE STATUS
• Verify the vehicle is connected to the power control station (PCS) and
the START button has been depressed to begin charging.
(Continued)
High Voltage/Traction Battery
TEST STEP
TEST STEP
TEST STEP
414-03A-53
ACTION TO TAKE
Yes = GO to D5.
No = REPAIR the GY/W wire.
Yes = GO to D6.
No = REPAIR the GY/W wire.
Yes = REPLACE the traction
battery charger.
No = REPAIR the GY/W wire.
ACTION TO TAKE
Yes = GO to E2.
No = GO to E3.
Yes = GO to E3.
No = System OK.
Yes = REPLACE the traction
battery charger.
No = GO to Pinpoint Test C.
ACTION TO TAKE
Yes = GO to Pinpoint Test E.
2001 Ranger EV, 01/2001