Ford 2001 Ranger, Manual

Page: 648 / 1218

414-03B-45 414-03B-45 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1836 BATTERY TEMPERATURE OUT OF RANGE
TEST STEP ACTION TO TAKE
No = REPAIR the BR/W wire
(#1), DG wire (#2), R/W
wire (#3), or O/R wire (#4).
Battery Temperature Sensor #1
— BOB pins A9 and A33
Battery Temperature Sensor #2
— BOB pins A22 and A33
Battery Temperature Sensor #3
— BOB pins A25 and A33
Battery Temperature Sensor #4
— BOB pins A27 and A33
•
Is the resistance greater than 10,000 ohms?
A4 CHECK SIGNAL WIRE TO BATTERY TEMPERATURE SENSOR
FOR SHORT TO POWER
•
Connect Traction Battery Low-Voltage Service Cord to traction battery Yes = REPAIR the BR/W wire
support tray in-line C1939F and in-line C1939M. (#1), DG wire (#2), R/W
•
With key OFF, disconnect high-voltage auxiliary load in-line C1935 from wire (#3), or O/R wire (#4).
the traction battery support tray and connect Traction Battery
high-voltage Service Cord to traction battery support tray in-line C1935F
and in-line C1935M.
•
With key ON, measure the voltage between the BOB pins indicated
below for the battery temperature sensor in question.
Battery Temperature Sensor #1
No = GO to A5.
— BOB pins A9 and A33
Battery Temperature Sensor #2
— BOB pins A22 and A33
Battery Temperature Sensor #3
— BOB pins A25 and A33
Battery Temperature Sensor #4
— BOB pins A27 and A33
•
Is the voltage greater than 0 volts?
A5 CHECK BATTERY TEMPERATURE SENSOR
•
With key OFF, measure the resistance between the terminals of the Yes = REPLACE the BCM.
battery temperature sensor in question.
•
Is the resistance between 430 and 280,000 ohms?
No = REPLACE the battery
temperature sensor.
A6 CHECK WIRING FOR INTERMITTENT CONNECTIONS
•
Remove the traction battery and connect Traction Battery High-Voltage Yes = REPAIR the wire(s) for
Lockout and Diagnostic Tool to the traction battery high-voltage two-pin intermittent connections.
C3994M.
•
Connect Traction Battery Low-Voltage Service Cord to traction battery No = System OK. If DTC C1836
support tray in-line C1939F and in-line C1939M. keeps occurring, REPLACE
•
Connect Traction Battery High-Voltage Service Cord to traction battery the BCM.
support tray in-line C1935F and in-line C1935M.
•
Clear the BCM DTCs.
•
With key ON, monitor BCM PID BATTMP for the battery temperature
sensor in question.
•
Exercise (wiggle) the wiring harness to the battery temperature sensor.
•
Does the BATTMP PID indicate YES?
2001 Ranger EV, 01/2001