Ford 2001 Ranger, Manual

Page: 483 / 1218

414-03A-80 414-03A-80 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
Symptom Chart
Symptom Chart
Condition Possible Sources Action
•
All High-Voltage Auxiliary
•
High-voltage harness
•
GO to Pinpoint Test A.
Load Systems Do Not (14B326).
Operate
•
High-voltage power
distribution box (HVPDB).
•
Contactor box.
Pinpoint Tests
Special Tool(s)
Traction Battery High-Voltage Service Cord 418-F218
PINPOINT TEST A: ALL HIGH-VOLTAGE AUXILIARY LOAD SYSTEMS DO NOT OPERATE
TEST STEP ACTION TO TAKE
A1 VERIFY ALL HIGH-VOLTAGE AUXILIARY LOAD SYSTEMS DO
NOT OPERATE
•
With key ON, turn the steering wheel. If there is no power assist, the power Yes System OK. CHECK wiring
steering system does not operate. = for intermittent connections.
•
With key ON, measure the voltage of the 12-volt auxiliary battery. The No = If none of the high-voltage
voltage should be greater than 13 volts. auxiliary load systems
operate, GO to A2.
•
With key ON, operate the heater and air conditioner (if equipped). If some of the high-voltage
•
Do all the high-voltage auxiliary load systems operate?
auxiliary load systems
operate, REFER to the
appropriate section(s) for the
system(s) in question.
A2 CHECK HIGH-VOLTAGE NEGATIVE BUS (OUTSIDE TRACTION
BATTERY SUPPORT TRAY) FOR OPEN
•
With key OFF, disconnect high-voltage auxiliary load in-line C1935 on the Yes GO to A3.
traction battery support tray and power steering assembly high-voltage =
C1895.
•
Measure the resistance between circuit 3141 (W wire) on power steering No = REPLACE the high-voltage
assembly C1895 and circuit 3133 (W wire) on high-voltage auxiliary load power distribution box
in-line C1935M. (HVPDB).
•
Is the resistance less than 5 ohms?
A3 CHECK HIGH-VOLTAGE NEGATIVE BUS (INSIDE TRACTION
BATTERY SUPPORT TRAY) FOR OPEN
•
Remove the traction battery. Yes REPLACE the contactor
= box.
No = REPLACE high-voltage
harness 14B326 between
traction battery support tray
in-line C1935F and
contactor box C3985.
(Continued)
2001 Ranger EV, 01/2001