Ford 2001 Ranger, Manual

Page: 644 / 1218

414-03B-41 414-03B-41 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
•
DTC C1838 Charging System Fault signal indicates zero.
— The battery control module (BCM) sets DTC — A charger mode fault occurs if the BCM
C1838 when a failure occurs in the traction detects the charger mode signal is not being
battery charging system. The BCM uses PIDs pulled up to auxiliary battery voltage by the
to indicate the charging system failure that charger. If this occurs, the BCM does not
occurred. The possible failures are:
enable the charger.
— A charger charging after being disabled fault — An independent observer module (IOM) to
occurs if the charger charging signal or the
BCM diagnostic signal stuck low fault occurs
auxiliary current sensor indicates that the
when the IOM to BCM diagnostic input is
charger is still outputting significant current
shorted to ground or if the BCM to IOM
several seconds after the BCM has
diagnostic output is open.
commanded the charger off.
— An independent observer module (IOM) to
— A charger overtemperature fault occurs if the
BCM diagnostic signal stuck high fault occurs
charger fault signal is asserted and the charger
if any of the following occur: IOM is
ready signal is deasserted during a charge
disconnected, the IOM to BCM diagnostic
cycle.
input is open, the BCM to IOM diagnostic
output is shorted to ground, or there is an
— A charger latchup fault occurs if the charger
IOM diagnostic fault due to an IOM battery
fault signal and charger ready signal are
temperature sensor is out of range or the IOM
asserted during a charge cycle.
has detected a high/rapid change in battery
— A charger cycling fault occurs if the charger is
temperature.
cycled on and off several times within a short
•
DTC C1859 PRNDL Input #2 Circuit Failure
period of time due to a reoccurring fault
condition. If this occurs, the BCM disables the
— The battery control module (BCM) sets DTC
charger.
C1859 during the BCM on-demand self test if
it detects the PRNDE TR2 signal is not
— A charger undercurrent fault occurs if the
grounded. An open or short in the TR2 signal
BCM commands maximum power output from
wire or the gear selector not in the PARK
the charger and little or no current is detected
position during the on-demand self-test will
at the auxiliary current sensor for an extended
cause DTC C1859.
period of time. There are several potential
causes for this fault.
•
DTC C1861 PRNDL Input #4 Circuit Failure
— A charger overcurrent fault occurs if the BCM
— The battery control module (BCM) sets DTC
commands zero power output from the charger
C1861 during the BCM on-demand self test if
and significant current is detected at the
it detects the PRNDE TR4 signal is not
auxiliary current sensor for an extended period
grounded. An open or short in the TR4 signal
of time.
wire or the gear selector not in the PARK
position during the on-demand self-test will
— A charger overvoltage fault occurs if the BCM
cause DTC C1861.
detects the traction battery voltage to be
greater than 385 volts during a charge cycle.
•
DTC C1863 External Charging Fault
If this occurs, the BCM disables the charger.
— The battery control module (BCM) sets DTC
— A charger over amp-hours fault occurs the
C1863 if the on-plug circuit indicates the
BCM detects that more than 105 amp-hours of
vehicle is plugged into a power control station
current have been put into the traction battery
(PCS) and the traction inverter module (TIM)
during the charge cycle. If this occurs, the
indicates the vehicle is traveling faster than 15
BCM disables the charger.
km/h (9.4 mph).
— A charger line capacity fault occurs if the
Electrical Schematic
BCM commands maximum power output from
Refer to Electrical and Vacuum Troubleshooting
the charger and little or no current is detected
Manual, Cell 18, Traction Battery Charging/Heating at the auxiliary current sensor for an extended
period of time and the charger line capacity
System for schematic and connector information.
2001 Ranger EV, 01/2001