Ford 2001 Ranger, Manual

Page: 630 / 1218

414-03B-27 414-03B-27 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
TEST STEP ACTION TO TAKE
•
Does the LEAK CF PID indicate YES?
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.
A3 CHECK LOW-LEVEL CURRENT LEAKAGE CIRCUIT 3213
(BK/LB) BETWEEN IN-LINE C1750M AND BCM FOR OPEN
•
Remove the traction battery and connect Traction Battery High-Voltage Yes = GO to A4.
Lockout and Diagnostic Tool to the traction battery high-voltage two-pin
C3994M.
•
Connect Traction Battery High-Voltage Service Cord to traction battery No = REPLACE high-voltage
support tray in-line C1935F and in-line C1935M. harness (10B694).
WARNING: The traction battery contains high-voltage
components and wiring. High-voltage insulated safety gloves and face
shield must be worn when carrying out 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 C1750 (label A) and measure the
resistance of the BK/LB wire between pin 7 on BCM high-voltage
C1865 and in-line C1750M.
•
Is the resistance less than 5 ohms?
A4 CHECK LOW-LEVEL CURRENT LEAKAGE CIRCUIT
BETWEEN IN-LINE C1750F AND BATTERY MODULE 1 FOR OPEN
•
With key OFF, measure the resistance between the BK/LB wire on Yes = GO to A5.
in-line C1750F and battery module 1 negative (-) post.
•
Is the resistance between 28,000 and 34,000 ohms?
No = REPLACE high-voltage
harness (14A280-AB).
A5 CHECK HIGH-LEVEL CURRENT LEAKAGE CIRCUIT 3212 (DB)
BETWEEN IN-LINE C1747M AND BCM FOR OPEN
•
With key OFF, disconnect BCM high-voltage C1866. Yes = GO to A6.
•
With key OFF, disconnect in-line C1747 (label N) and measure the No = REPLACE high-voltage
resistance of the DB wire between pin 40 on BCM high-voltage C1866 harness (10B694).
and in-line C1747M.
•
Is the resistance less than 5 ohms?
A6 CHECK HIGH-LEVEL CURRENT LEAKAGE CIRCUIT 3212 (DB)
BETWEEN IN-LINE C1747F AND BATTERY MODULE 39 FOR
OPEN
(Continued)
2001 Ranger EV, 01/2001