Ford Electric Ranger 2001 Manual page 88

100-09-34
DIAGNOSIS AND TESTING (Continued)
ROUTINE 9: VEHICLE DOES NOT CHARGE (NIMH VEHICLES)
• With key OFF, measure the resistance between BOB pins 14, 20 and
ground (BOB pin 65).
• Are the resistances greater than 10,000 ohms?
9-18 CHECK CIRCUITS 3984 (R) AND 4009 (LB/R) (INSIDE OF
TRACTION BATTERY SUPPORT TRAY) FOR OPEN(S)
• Disconnect 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 carrying out 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; do not connect Traction
Battery Low Voltage Service Cord to in-line C1939M.
• With key OFF, disconnect independent observer module (IOM) C1810
and measure the resistance of the R wire between pin 33 on IOM C1810
and BOB pin 20.
• With key OFF, measure the resistance of the LB/R wire between pin 34
on IOM C1810 and BOB pin 14.
• Are the resistances less than 5 ohms?
9-19 CHECK CIRCUITS 3984 (R) AND 4009 (LB/R) (INSIDE OF
TRACTION BATTERY SUPPORT TRAY) FOR SHORT(S) TO
GROUND
• With key OFF, measure the resistance between BOB pins 14, 20 and
ground (BOB pin 65).
• Are the resistances greater than 10,000 ohms?
9-20 CHECK NEUTRAL CIRCUIT FOR OPEN
• With key OFF, measure the resistance between pin 7 (DG wire) on
charger inlet C5000 and ground.
• Is the resistance greater than 100 ohms?
9-21 CHECK CIRCUIT 3174 (DG) FOR OPEN
• With key OFF, disconnect traction battery charger C1938 and measure
the resistance of the DG wire between pin 7 on charger inlet C5000 and
traction battery charger C1938.
• Is the resistance less than 5 ohms?
9-22 CHECK CIRCUITS 3172 (O) AND 3173 (W) FOR OPEN(S)
• With key OFF, disconnect traction battery charger C1938 and measure
the resistance of the O wire between pin 4 on charger inlet C5000 and
traction battery charger C1938.
• With key OFF, measure the resistance of the W wire between pin 3 on
charger inlet C5000 and traction battery charger C1938.
• Are the resistances less than 5 ohms?
(Continued)
Powertrain Diagnostic Routines Identification
TEST STEP ACTION TO TAKE
Yes = CARRY OUT Pinpoint Test
U: Power Control Station
(PCS) Operation Verification
Test. Refer to Traction
Battery Charging/Heating
System in Section
No = REPAIR the wire(s) in
question.
Yes = GO to 9-19.
No = REPAIR the wire(s) in
question.
Yes = REPLACE the IOM.
No = REPAIR the wire(s) in
question.
GO to 9-21.
Yes =
GO to 9-22.
No =
Yes = REPLACE the traction
battery charger. REFER to
Section 414-03B.
No = REPLACE the charger inlet.
REFER to Section
414-03B.
GO to 9-23.
Yes =
No = REPLACE the charger inlet.
REFER to Section
414-03B.
2001 Ranger EV, 01/2001
100-09-34
414-03B.