Ford 2001 Ranger, Manual

Page: 416 / 1218

414-03A-13 414-03A-13 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC B1676 BATTERY PACK VOLTAGE OUT OF RANGE
TEST STEP ACTION TO TAKE
A8 CHECK CIRCUIT 3986 (DG) BETWEEN TIM AND TRACTION
BATTERY SUPPORT TRAY FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin 23 and ground Yes = REPLACE the TIM. REFER
(BOB pin 65). to Section 303-14.
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the DG wire.
A9 CHECK CIRCUIT 3986 (DG) BETWEEN CONTACTOR BOX AND
TRACTION BATTERY SUPPORT TRAY FOR OPEN
•
With key OFF, disconnect the BOB from traction battery support tray Yes = GO to A10.
in-line C1939F and in-line C1939M and remove the traction battery.
No = REPAIR the DG wire.
WARNING: The traction battery contains high-voltage
components and wiring. High-voltage insulated safety gloves and face
shield must be worn when performing the following steps. Failure to
follow this warning may result in severe personal injury or death.
•
Reconnect BOB to traction battery support tray in-line C1939F using
Traction Battery Low-Voltage Service Cord; do not connect Traction
Battery Low-Voltage Service Cord to in-line C1939M.
•
With key OFF, disconnect contactor box C1982 and measure the
resistance of the DG wire between pin 11 on contactor box C1982 and
BOB pin 23.
•
Is the resistance less than 5 ohms?
A10 CHECK CIRCUIT 3986 (DG) BETWEEN CONTACTOR BOX
AND TRACTION BATTERY SUPPORT TRAY FOR SHORT TO
GROUND
•
With key OFF, measure the resistance between BOB pin 23 and ground Yes = GO to A11.
(BOB pin 65).
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the DG wire.
A11 CHECK TRACTION BATTERY HIGH-VOLTAGE FUSE
•
Measure the resistance between the terminals of the 250A traction battery Yes = REPLACE the contactor
high-voltage fuse. box.
•
Is the resistance less than 5 ohms?
No = REPLACE the fuse.
A12 CHECK TRACTION BATTERY VOLTAGE
•
With key ON, monitor BCM PID BAT PV and TIM PID BAT PV. Yes = REPLACE the TIM. REFER
to Section 303-14.
•
Turn the ignition key to the START position. No = System OK. CHECK wiring
•
Is there more than a 30-volt difference between the BAT PV PIDs?
for intermittent connections.
PINPOINT TEST B: DTC C1862 CONTACTOR CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
B1 CHECK FOR INTERFACE ADAPTER ASSEMBLY (IAA)
MODULE AND BATTERY CONTROL MODULE (BCM)
DIAGNOSTIC TROUBLE CODES (DTCs)
NOTE: Using High-Voltage Insulated Safety Gloves and Face Shield,
Yes = GO to Pinpoint Test A.
disconnect and check the traction battery high-voltage two-pin C3994 for
damage before performing the following test steps. Repair as necessary. If
OK, reconnect and verify the connection is secure.
•
Perform the on-demand self-test for the IAA module and BCM.
•
Do IAA module DTCs C1862 Contactor Circuit Failure and U2015
No = GO to B2.
Signal Link Fault (Non SCP), and BCM DTC C1837 Battery Heater
Circuit Failure occur?
(Continued)
2001 Ranger EV, 01/2001