Perkins 1106C - CID 1797 Fmi 03; CID 1797 Fmi 04

KENR6933 95
Troubleshooting Section
System Response:
If equipped, the warning light will be on. The ECM will
log the diagnostic code. The ECM will flag the intake
manifold pres
sure as being invalid. A default value is
used for the intake manifold pressure.
For engines wi
th an electronically controlled
wastegate, the current for the wastegate solenoid
will be set to a default value while this code is active.
This will cau
se the engine to have poor acceleration
but the default setting will prevent any overpressure
in the intake manifold which could be caused by an
overspeed of
the turbocharger.
Note: Any open circuits or short circuits in the signal
wire for the o
il pressure may reset this diagnostic.
Possible Performance E ffect:
•
Theenginewillbederated.
Troublesho
oting:
This diagnostic code is designed to detect the loss
of the 5 Volt
supply to the sensor.
Perform the following diagnostic procedure: “Engine
Pressure Se
nsor Open or Short Circuit - Test”
Results:
•
OK – STOP.
i02656262
CID 1797 FMI 03
Conditions Which G enerate This Code:
The Electronic Control Module (ECM) detects the
following condition:
•
The signal voltage for the pressure in the fuel rail is
more than 4.8 Volts DC for 0.6 seconds.
System Response:
If equippe
d, the warning lamp will be on. The ECM
will log the diagnostic code. The electronic service
tool will display “70000 kPa” next to “Desired Fuel
Rail Press
ure” and “Actual Fuel Rail Pressure” on
the status screens.
Possible
Performance Effect:
The engine will be derated.
Troubleshooting:
This code can be caused by a loss of reference
ground, an open signal wire or a short to a voltage
source.
Perform the following diagnostic procedure: “Engine
Pressure Sens
or Open or Short Circuit - Test”
Results:
•
OK – STOP.
i02656263
CID 1797 FMI 04
Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects the
following conditions:
•
No 0262 codes for the 5 Volt supply are active.
•
Diagnostic c
ode 0168-01 is not active.
•
The signal voltage for the pressure in the fuel rail is
less than 0.2
Volts DC for 0.6 seconds.
System Response:
If equipped, the warning lamp will be on. The ECM
will log the diagnostic code. The electronic service
tool will di
splay “70000 kPa” next to “Desired Fuel
Rail Pressure” and “Actual Fuel Rail Pressure” on
the status screens.
Possible Performance Effect:
Theenginew
ill be derated.
Troubleshooting:
This diagnostic code can be caused by a loss of the
5 Volt supply or a short to ground on the signal wire.
Perform the following diagnostic procedure: “Engine
Pressure Sensor Open or Short Circuit - Test”
Results:
•
OK – STOP.