Ford Electric Ranger 2001 Manual page 418

414-03A-15
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST B: DTC C1862 CONTACTOR CIRCUIT FAILURE
• With key OFF, measure the resistance between BOB pin 22 and ground
(BOB pin 65).
• Is the resistance greater than 10,000 ohms?
B10 CHECK TRACTION BATTERY VOLTAGE
• With key ON, monitor BCM PID BAT PV and TIM PID BAT PV.
• Is there more than a 30-volt difference between the BAT PV PIDs?
B11 CHECK FOR WELDED MAIN CONTACTOR RELAY
• Enter TIM active command mode CONTACTOR OUTPUT CONTROL
and monitor TIM PID BAT PV.
• Does the voltage for the BAT PV PID decrease?
B12 CHECK MAIN AND PRECHARGE CONTACTOR RELAY
OUTPUTS
• Connect 104-Pin Breakout Box (BOB) to TIM and TIM C4998, C4999
using the BCM/TIM BOB Adapter Cable and Overlay.
• Enter traction inverter module (TIM) active command mode
CONTACTOR OUTPUT CONTROL.
• With key ON, measure the voltage between BOB pins A8, A18 and
ground (BOB pin A29).
• Is either voltage greater than 10 volts?
B13 CHECK CIRCUITS 3991 (T) AND 3986 (DG) FOR SHORT(S) TO
POWER
• With key OFF, disconnect the TIM from the BOB; leave BOB connected Yes =
to TIM C4998, C4999.
• With key ON, measure the voltage between BOB pins A8, A18 and
ground (BOB pin A29).
• Is either voltage greater than 1 volt?
High Voltage/Traction Battery
TEST STEP
414-03A-15
ACTION TO TAKE
Yes = REPLACE the contactor
box.
No = REPAIR the T wire.
Yes = REPLACE the TIM. REFER
to Section 303-14.
No = System OK. CHECK wiring
for intermittent connections.
Yes = System OK. CHECK wiring
for intermittent connections.
GO to B12.
No =
Yes = GO to B13.
No = REPLACE the contactor
box.
REPAIR the wire(s) in
question.
No = REPLACE the TIM. REFER
to Section 303-14.
2001 Ranger EV, 01/2001