Ford Electric Ranger 2001 Manual page 619

414-03B-16
DIAGNOSIS AND TESTING (Continued)
Negative Contactor Relay Control
Diagnostic Trouble Code (DTC) Definition
The following DTC relates to the negative contactor
relay in the contactor box:
• DTC C1862 Contactor Circuit Failure
— The BCM sets DTC C1862 before entering
current mode, voltage mode, and during
voltage mode each time before charging if
there is current flow through the contactor box
auxiliary current sensor while the BCM asserts
the negative bus open signal and enables the
charger with 72% duty cycle in current mode.
This indicates the negative contactor relay is
stuck closed. The BCM also sets DTC C1862
if the traction inverter module (TIM) detects a
welded main contactor relay and sends the
BCM a disable charging message.
Symptom Chart
Symptom Chart
Condition
DTC C1862 Contactor Circuit
•
Failure
Pinpoint Tests
Special Tool(s)
104-Pin Breakout Box (BOB) 418-049 (014-00950) or
equivalent
BCM/TIM Breakout Box (BOB) Adapter Cable
418-F212
BCM/TIM Breakout Box (BOB) Overlay 418-F220
(Continued)
PINPOINT TEST A: DTC C1862 CONTACTOR CIRCUIT FAILURE
A1 CHECK STATUS OF BATTERY CONTROL MODULE (BCM)
OPERATING STATE
• Connect the vehicle to the power control station (PCS) and press the
START button (if necessary) to begin charging.
• With key OFF, monitor BCM PID BCM OP.
• Does the BCM OP PID indicate 106 (negative contactor relay
welded/stuck closed) or 107 (no charge-TIM SCP message: main
contactor relay welded/stuck closed)?
(Continued)
High Voltage/Traction Battery — Nickel Metal Hydride
Possible Sources
Circuit.
•
Contactor box.
•
Battery control module
•
(BCM).
TEST STEP
Electrical Schematic
Refer to Electrical and Vacuum Troubleshooting
Manual, Cell 21, Contactor Box Relay Control for
schematic and connector information.
Inspection and Verification
Refer to Section 100-07.
GO to Pinpoint Test A.
•
Special Tool(s)
Traction Battery High-Voltage Service Cord 418-F218
Traction Battery Low-Voltage Service Cord 418-F219
Traction Battery High-Voltage Lockout and Diagnostic
Tool 418-F207
High-Voltage Insulated Safety Gloves 100-F036 or
equivalent
Face Shield 100-F035 or equivalent
ACTION TO TAKE
Yes =
No =
414-03B-16
Action
If 106, GO to A2.
If 107, GO to Pinpoint Test
B in Main/Precharge
Contactor Relay Control.
System OK.
2001 Ranger EV, 01/2001