Ford 2001 Ranger, Manual

Page: 249 / 1218

303-14-6 303-14-6 Electric Motor Management
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST B: DTC 1856 TRACTION MOTOR ENCODER CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
B5 CHECK CIRCUITS 3700 (LB/R) AND 3701 (DB/W) FOR SHORT(S)
TO POWER
•
With key On, measure the voltage between BOB pins A26, A36 and Yes = REPAIR the wire(s) in
ground (BOB pin A29). question.
•
Are any of the voltages greater than 0 volts?
No = REPLACE the TIM.
REMOVAL AND INSTALLATION
Traction Inverter Module (TIM)
Removal
1.
WARNING: The TIM contains
capacitors which can retain a high-voltage
charge even after the traction battery has
been disconnected. Wear high-voltage
insulated safety gloves and a faceshield
during capacitor discharging. Ensure that the
capacitors are completely discharged before
continuing this procedure. Failure to do so
may result in personal injury or death.
Discharge the traction inverter module
capacitors. Refer to
Section 100-05 .
2. Disconnect the TIM cables.
1 Remove the nuts.
2 Remove the sleeve nuts and slide the cables
out of the TIM.
2001 Ranger EV, 01/2001