Dodge D150 1990 Service Manual page 722

• » FUEL SYSTEM 14 - 39
FAULT CODE DESCRIPTION
FAULT CODE
DRBII DISPLAY
DESCRIPTION OF FAULT CONDITION
41
Alternator Field Get
An open or shorted condition
detected in the alternator control
circuit.
42
ASD Relay Circuit
or
Zl Voltage Sense
An open or shorted condition
detected in the auto shutdown
relay circuit.
No Zl voltage sensed when the auto
shutdown relay circuit.
45 Overdrive Solenoid An open or shorted condition
detected In the overdrive solenoid
circuit (engine packages with A-
500 or A-518 automatic
transmissions only).
46 Battery Voltage High Battery voltage sensor input above
target charging voltage during
engine operation.
47 Charging Output Low Battery voltage sense input below
target charging voltage during
engine operation and no
significant change in voltage
detected during active test of
alternator output.
51
Lean F/A Condition Oxygen sensor signal input
indicates lean fuel/air ratio
condition during engine operation.
52 Rich F/A Condition
or
Excessive Leaning
Oxygen sensor signal input
indicates rich fuel/air ratio
condition during engine operation.
Adaptive fuel valve leaned
excessively due to a sustained
rich condition.
53 Internal Self Test Internal engine controller fault
condition detected.
62 EMR Miles Not Stored Unsuccessful attempt to update EMR
mileage in the controller EEPROM.
63 EE PROM Write Denied Unsuccessful attempt to write to
an EEPROM location by the
controller.
55
N/A Completion of fault code display
on the CHECK ENGINE lamp.
J9014-162