Ford 2001 Ranger, Manual

Page: 410 / 1218

414-03A-7 414-03A-7 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1862 CONTACTOR CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
•
Enter IAA module active command mode AUXILIARY SYSTEM Yes = System OK. CHECK wiring
CONTROL, monitor IAA module PID AUX HVC, and set the active for intermittent connections.
command AUX CONT to CLOSE.
•
After the CLOSE signal is complete, set the active command AUX No = If AUX HVC PID
CONT to OPEN. indicates CFAULT, GO to
•
Does the AUX HVC PID indicate CLOSED? A7.
If AUX HVC PID
indicates OFAULT, GO to
A14.
A7 CHECK AUXILIARY CONTACTOR RELAY CONTROL SIGNAL
(CLOSE FAULT)
•
Connect 104-Pin Breakout Box (BOB) to IAA module and IAA module Yes = GO to A10.
C1945.
•
Enter IAA module active command mode AUXILIARY SYSTEM No = GO to A8.
CONTROL, set the active command AUX CONT to OPEN, and measure
the voltage between BOB pin 42 and ground (BOB pin 80).
•
Is the voltage less than 1 volt?
A8 CHECK CIRCUIT 3998 (GY) FOR SHORT TO POWER
•
Disconnect BOB from IAA module; leave BOB connected to IAA Yes = GO to A9.
module C1945.
•
With key ON, measure the voltage between BOB pin 42 and ground No = REPLACE the IAA module.
(BOB pin 80). REFER to Section 412-04.
•
Is the voltage greater than 0 volts?
A9 CHECK CIRCUIT 3998 (GY) BETWEEN IAA MODULE AND
TRACTION BATTERY SUPPORT TRAY FOR SHORT TO POWER
•
With key OFF, disconnect traction battery support tray in-line C1939. Yes = REPAIR the GY wire
between the IAA module
and in-line C1939M.
•
With key ON, measure the voltage between BOB pin 42 and ground No = REMOVE the traction
(BOB pin 80). battery and REPAIR the GY
•
Is the voltage greater than 0 volts?
wire between the contactor
box and in-line C1939F.
A10 CHECK AUXILIARY CONTACTOR RELAY STATUS SIGNAL
(CLOSE FAULT)
•
Enter IAA module active command mode AUXILIARY SYSTEM Yes = GO to A11.
CONTROL, set the active command AUX CONT to OPEN, and measure
the voltage between BOB pin 26 and ground (BOB pin 80).
•
Is the voltage greater than 10 volts?
No = GO to A13.
A11 CHECK CIRCUIT 3999 (DB/LG) BETWEEN IAA MODULE AND
TRACTION BATTERY SUPPORT TRAY FOR SHORT TO POWER
•
Disconnect BOB from IAA module; leave BOB connected to IAA Yes = REPAIR the DB/LG wire
module C1945. between the IAA module
and in-line C1939M.
•
With key OFF, disconnect traction battery support tray in-line C1939. No = GO to A12.
•
With key ON, measure the voltage between BOB pin 26 and ground
(BOB pin 80).
•
Is the voltage greater than 0 volts?
A12 CHECK CIRCUIT 3999 (DB/LG) BETWEEN CONTACTOR BOX
AND TRACTION BATTERY SUPPORT TRAY FOR SHORT TO
POWER
•
Disconnect BOB from IAA module C1945. Yes = REPAIR the DB/LG wire
between the contactor box
and in-line C1939F.
(Continued)
2001 Ranger EV, 01/2001