Ford 2001 Ranger, Manual

Page: 617 / 1218

414-03B-14 414-03B-14 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC B1676 BATTERY PACK VOLTAGE OUT OF RANGE
TEST STEP ACTION TO TAKE
•
Measure the resistance between the terminals of the 250A traction battery Yes = REPLACE the contactor
high-voltage fuse. box.
•
Is the resistance less than 5 ohms?
No = REPLACE the fuse.
A12 CHECK TRACTION BATTERY VOLTAGE
•
With key ON, monitor BCM PID BAT PV and TIM PID BAT PV. Yes = REPLACE the TIM. REFER
to Section 303-14.
•
Turn the ignition key to the START position. No = System OK. CHECK wiring
•
Is there more than a 30-volt difference between the BAT PV PIDs?
for intermittent connections.
PINPOINT TEST B: DTC C1862 CONTACTOR CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
B1 CHECK FOR INTERFACE ADAPTER ASSEMBLY (IAA)
MODULE DIAGNOSTIC TROUBLE CODES (DTCs)
NOTE: Using High-Voltage Insulated Safety Gloves and Face Shield,
Yes = GO to Pinpoint Test A.
disconnect and check the traction battery high-voltage two-pin C3994 for
damage before carrying out the following test steps. Repair as necessary. If
OK, reconnect and verify the connection is secure.
•
Carry out the on-demand self-test for the IAA module.
•
Do IAA module DTCs C1862 Contactor Circuit Failure and U2015
No = GO to B2.
Signal Link Fault (Non SCP) occur?
B2 CHECK FOR TRACTION INVERTER MODULE (TIM)
PRECHARGE FAULT
•
With key ON, monitor TIM PID PRECH F. Yes = GO to B3.
•
Does the PRECH F PID indicate YES?
No = GO to B11.
B3 CHECK STATUS OF TIM PRECHARGE BUS VOLTAGE
•
With key ON, monitor TIM PID BAT PV. Yes = GO to B4.
•
Does the BAT PV PID indicate less than 50 volts?
No = GO to B10.
B4 CHECK PRECHARGE CONTACTOR RELAY
•
Enter the TIM active command mode CONTACTOR OUTPUT Yes = GO to B5.
CONTROL, monitor the TIM PID BAT PV, and set the active
command PRECHG IN to CLOSE.
•
Does the BAT PV PID indicate less than 50 volts?
No = GO to B10.
B5 CHECK TIM PRECHARGE CONTACTOR CONTROL SIGNAL
TO TRACTION BATTERY SUPPORT TRAY
•
With key OFF, disconnect traction battery support tray in-line C1939 and Yes = GO to B8.
connect 104-Pin Breakout Box (BOB) to traction battery support tray
in-line C1939F and in-line C1939M using Traction Battery Low-Voltage
Service Cord.
•
With key ON, measure the voltage between BOB pin 22 and ground No = GO to B6.
(BOB pin 65).
•
Is the voltage greater than 10 volts?
B6 CHECK CIRCUIT 3991 (T) BETWEEN TIM AND TRACTION
BATTERY SUPPORT TRAY FOR OPEN
•
With key OFF, disconnect TIM C4998 and measure the resistance of the Yes = GO to B7.
T wire between pin 18 on TIM C4998 and BOB pin 22.
•
Is the resistance less than 5 ohms?
No = REPAIR the T wire.
B7 CHECK CIRCUIT 3991 (T) BETWEEN TIM AND TRACTION
BATTERY SUPPORT TRAY FOR SHORT TO GROUND
•
With key OFF, measure the resistance between BOB pin 22 and ground Yes = REPLACE the TIM. REFER
(BOB pin 65). to Section 303-14.
(Continued)
2001 Ranger EV, 01/2001