Ford 2001 Ranger, Manual

Page: 627 / 1218

414-03B-24 414-03B-24 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1835 CURRENT SENSE CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
No = GO to A9.
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 High-Voltage Service Cord to traction battery
support tray in-line C1935F and in-line C1935M.
•
Connect Traction Battery Low-Voltage Service Cord to traction battery
support tray in-line C1939F and in-line C1939M.
•
Connect 104-Pin Breakout Box (BOB) to BCM C1986, C1987 using the
BCM/TIM BOB Adapter Cable and Overlay; leave the BCM
disconnected.
•
With key ON, measure the voltage between BOB pin A15 and ground
(BOB pin A33).
•
Is the voltage between 5 and 8 volts?
A9 CHECK CIRCUITS 3602 (T/Y) AND 3706 (DB) FOR OPEN(S)
•
With key OFF, disconnect contactor box C1982 and measure the Yes = GO to A10.
resistance of the T/Y wire between pin 23 on contactor box C1982 and
BOB pin B1.
•
With key OFF, measure the resistance of the DB wire between pin 15 on No = REPAIR the wire(s) in
contactor box C1982 and BOB pin A15. question.
•
Are the resistances less than 5 ohms?
A10 CHECK CIRCUIT 3706 (DB) FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin A15 and ground Yes = GO to A11.
(BOB pin A33).
•
Is the resistance greater than 10,000 ohms?
No = REPAIR the DB wire.
A11 CHECK CIRCUIT 3706 (DB) FOR SHORT TO POWER
•
With key ON, measure the voltage between BOB pin A15 and ground Yes = REPAIR the DB wire.
(BOB pin A33).
•
Is the voltage greater than 0 volts?
No = REPLACE the contactor
box.
A12 CHECK CURRENT SENSE CONTROL DISABLE SIGNAL
•
Remove the traction battery and connect Traction Battery High-Voltage Yes = GO to A13.
Lockout and Diagnostic Tool to the traction battery high-voltage two-pin
C3994M.
No = GO to A15.
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 High-Voltage Service Cord to traction battery
support tray in-line C1935F and in-line C1935M.
•
Connect Traction Battery Low-Voltage Service Cord to traction battery
support tray in-line C1939F and in-line C1939M.
•
Connect 104-Pin Breakout Box (BOB) to BCM and BCM C1986, C1987
using the BCM/TIM BOB Adapter Cable and Overlay.
•
Enter BCM active command mode BCM PACKETED COMMANDS, set
the active command CURRENT S to DISABLE, and measure the voltage
between BOB pin B22 and ground (BOB pin A33).
•
Is the voltage greater than 7.5 volts?
A13 CHECK CURRENT SENSE CONTROL ENABLE SIGNAL
•
Set the active command CURRENT S to ENABLE and measure the Yes = System OK. CHECK wiring
voltage between BOB pin B22 and ground (BOB pin A33). for intermittent connections.
•
Is the voltage less than 1 volt?
No = GO to A14.
(Continued)
2001 Ranger EV, 01/2001