Ford Electric Ranger 2001 Manual page 431

414-03A-28
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
• Does the LEAK CF PID indicate YES?
A3 CHECK LOW-LEVEL CURRENT LEAKAGE CIRCUIT 3213
(BK/LB) BETWEEN IN-LINE C1882M AND BCM FOR OPEN
• Remove the traction battery and connect Traction Battery High-Voltage
Lockout and Diagnostic Tool to the traction battery high-voltage two-pin
C3994M.
• Connect Traction Battery High-Voltage Service Cord to traction battery
support tray in-line C1935F and in-line C1935M.
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.
• Connect Traction Battery Low-Voltage Service Cord to traction battery
support tray in-line C1939F and in-line C1939M.
• With key OFF, disconnect BCM high-voltage C1865.
• With key OFF, disconnect in-line C1882 (label R) and measure the
resistance of the BK/LB wire between pin 7 on BCM high-voltage
C1865 and in-line C1882M.
• Is the resistance less than 5 ohms?
A4 CHECK LOW-LEVEL CURRENT LEAKAGE CIRCUIT
BETWEEN IN-LINE C1882F AND BATTERY MODULE 1 FOR OPEN
• With key OFF, measure the resistance between the BK/LB wire on
in-line C1882F and battery module 1 negative (-) post.
• Is the resistance between 28,000 and 34,000 ohms?
A5 CHECK HIGH-LEVEL CURRENT LEAKAGE CIRCUIT 3212 (DB)
BETWEEN IN-LINE C1885M AND BCM FOR OPEN
• With key OFF, disconnect BCM high-voltage C1866.
• With key OFF, disconnect in-line C1885 (label W) and measure the
resistance of the DB wire between pin 40 on BCM high-voltage C1866
and in-line C1885M.
• Is the resistance less than 5 ohms?
A6 CHECK HIGH LEVEL CURRENT LEAKAGE CIRCUIT 3212 (DB)
BETWEEN IN-LINE C1885F AND BATTERY MODULE 39 FOR
OPEN
(Continued)
High Voltage/Traction Battery
TEST STEP
414-03A-28
ACTION TO TAKE
No = CLEAR the BCM DTCs.
DRIVE the vehicle. If the
electrical hazard warning
indicator illuminates and
DTC C1839 still occurs,
REPEAT test steps A1 and
A2. If all PIDs still indicate
NO, REPLACE the BCM.
Otherwise, continue as
indicated.
GO to A4.
Yes =
No = REPLACE high-voltage
harness (10B694).
Yes = GO to A5.
No = REPLACE high-voltage
harness (14A280-RF).
Yes = GO to A6.
No = REPLACE high-voltage
harness (10B694).
2001 Ranger EV, 01/2001