Ford Electric Ranger 2001 Manual page 73

100-09-19
DIAGNOSIS AND TESTING (Continued)
ROUTINE 5: VEHICLE OPERATES AT REDUCED POWER (NIMH VEHICLES)
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 Traction Battery High Voltage Service Cord to traction battery
support tray in-line C1935F and in-line C1935M.
• Connect Traction Battery Low Voltage Service Cord to traction battery
support tray in-line C1939F and in-line C1939M.
• With key OFF, disconnect the battery temperature sensor in question and
one of the other temperature sensors.
• Connect jumper wires between the connector for the temperature sensor
in question and the known good temperature sensor that was
disconnected.
• With key ON, monitor BCM PIDs TMPSEN1, TMPSEN2, and
TMPSEN3.
• Does the TMPSEN PID that indicated less than -25°C (-13°F) still
indicate the same value?
5-8 CHECK STATUS OF TRACTION BATTERY MODULES BY
CARRYING OUT THE BATTERY MODULE DIAGNOSTIC TEST
• With key ON, carry out the Battery Module Diagnostic Test. Refer to the Yes =
procedure in Traction Battery System
• Does the Battery Module Diagnostic Test indicate to replace any
battery modules?
5-9 CHECK MOTOR TEMPERATURE
• Drive the vehicle until the vehicle runs at reduced power.
• With key ON, monitor the traction inverter motor (TIM) PID TRNTEMP
and note the temperature.
• Is the temperature greater than 170°C (338°F)?
5-10 CHECK MOTOR TEMPERATURE SENSOR
• With key OFF, disconnect motor/transaxle C4993 and connect Electric
Motor/Transaxle Test Box.
• Measure the resistance between the motor temperature ports on the test
box and determine the motor temperature from the following resistance
values:
Resistance
— 493 ohms = 0 °C (32°F)
— 533 ohms = 10 °C (50°F)
— 576 ohms = 20 °C (68°F)
— 598 ohms = 25 °C (77°F)
— 621 ohms = 30 °C (86°F)
— 668 ohms = 40 °C (104°F)
— 718 ohms = 50 °C (122°F)
— 769 ohms = 60 °C (140°F)
— 824 ohms = 70 °C (158°F)
— 880 ohms = 80 °C (176°F)
— 939 ohms = 90 °C (194°F)
— 1,000 ohms = 100 °C (212°F)
— 1,063 ohms = 110 °C (230°F)
(Continued)
Powertrain Diagnostic Routines Identification
TEST STEP
Section 414-03B.
ACTION TO TAKE
No = REPLACE the battery
temperature sensor in
question.
REPLACE the battery
module(s) in question.
REFER to Section
414-03B.
GO to 5-9.
No =
Yes = GO to 5-10.
GO to 5-11.
No =
Yes = REPLACE the
motor/transaxle. REFER to
Section 303-01.
GO to 5-12.
No =
2001 Ranger EV, 01/2001
100-09-19