Ford Electric Ranger 2001 Manual page 245

303-14-2
SPECIFICATIONS
Torque Specifications
Description
Ground Strap Bolt
TIM Bracket Bolts
TIM Bracket to Frame
Bolts
TIM Cover Plate Screws
TIM A, B, C Cable
Sleeve Nuts
TIM A,- Cable
Connector Nuts
(Continued)
DESCRIPTION AND OPERATION
Electric Motor Management
Electric motor management is accomplished by the
traction inverter module (TIM). The TIM is located
in the rear of the vehicle under the bed of the truck.
The TIM converts high-voltage direct current from
the traction battery into high-voltage, three-phase
alternating current to power the motor/transaxle.
Output from the TIM to the motor/transaxle is based
upon driver, sensor, and other module inputs.
DIAGNOSIS AND TESTING
Traction Inverter Module (TIM) Control
System
Diagnostic Trouble Code (DTC) Definition
The following DTCs relate to the traction inverter
module (TIM) control system:
• DTC C1854 Motor Temperature Out of Range
— The traction motor contains a temperature
sensor in its stator field windings to indicate
the motor temperature. The TIM uses this
input signal to determine current sinked and
sourced to the motor. DTC C1854 is set if the
signal is out of the normal range of 0.8 to 4.0
volts. If this failure occurs, the malfunction
indicator lamp (MIL), red brake warning
indicator, and power limit warning indicator
illuminate, and the TIM operates the motor at
reduced power.
Electric Motor Management
Nm Lb-Ft Lb-In
12 — 107
20 14.5 —
22 16 —
5 — 44.5
3 — 26
15 11 —
Torque Specifications
Description
TIM B,+ Cable
Connector Nuts
TIM C Cable Connector
Nut
TIM +,- Cable Sleeve
Nuts
TIM Electrical
Connectors
TIM Mounting Bolts
• DTC C1856 Traction Motor Encoder Circuit
Failure
— The traction motor contains two vehicle speed
sensors (encoders) to provide two signals
(channels A and B) to indicate the speed and
direction of the vehicle to the TIM. At speeds
greater than 16 km/h (10 mph), only one
signal is used to indicate speed. If one signal
fails, the other one will be used. Below 16
km/h (10 mph), both signals are needed to
determine direction. If one signal fails, DTC
C1856 is set and the vehicle shuts down. The
TIM also uses the vehicle speed signal to
calculate the output to the speedometer.
Electrical Schematic
Refer to Electrical and Vacuum Troubleshooting
Manual, Cell 26, Motor/Transaxle Control for
schematic and connector information.
303-14-2
Nm Lb-Ft Lb-In
30 22 —
20 14.5 —
5 — 44.5
3 — 26.5
22 16 —
2001 Ranger EV, 01/2001