Cid 1785 Fmi 10; Cid 1797 Fmi 03 - Perkins 1106D Troubleshooting Manual

KENR6201-01
System Response:
If equipped, the diagnostic lamp will flash and the
derate lamp may come on. The ECM will log the
diagnostic code. The data for the intake manifold
pressure will be set to a maximum valid pressure
for two seconds. The ECM will then flag the intake
manifold pressure as being invalid. A default value is
then used for the intake manifold pressure.
For engines with an electronically controlled
wastegate, the current for the wastegate solenoid
will be set to a default value while this code is active.
This will derate the engine. The derate will prevent
any overpressure in the intake manifold which could
be caused by an overspeed of the turbocharger.
Possible Performance Effect:
•
The engine will be derated by 100%.
Troubleshooting:
This code can be caused by a short to ground or a
shorted sensor.
Perform the following diagnostic procedure: "Engine
Pressure Sensor Open or Short Circuit - Test"
Results:
•
OK – STOP.

CID 1785 FMI 10

Conditions Which Generate This Code:
This diagnostic code is designed to detect the loss of
the 5 Volt supply at the sensor connector.
The Electronic Control Module (ECM) detects the
following conditions:
•
The engine speed is more than 1000 rpm.
•
The intake manifold pressure is within the
acceptable range.
•
No 0262 codes for the 5 Volt supply are active.
•
Diagnostic code 0168-01 is not active.
System Response:
If equipped, the diagnostic lamp will flash and the
derate lamp will come on. The diagnostic code will
be logged.
This document is printed from SPI². Not for RESALE
The ECM will flag the intake manifold pressure as
being invalid. A default value is used for the intake
manifold pressure.
Note: Any open circuits or short circuits in the signal
wire for the oil pressure may reset this diagnostic.
Possible Performance Effect:
For engines with an electronically controlled
wastegate, the current for the wastegate solenoid
will be set to a default value while this code is active.
This will cause 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.
The engine will be derated.
Troubleshooting:
This diagnostic code will detect the loss of the 5 Volt
supply to the sensor.
Perform the following diagnostic procedure: "Engine
Pressure Sensor Open or Short Circuit - Test"
Results:
•
OK – STOP.

CID 1797 FMI 03

i03799135
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 code 0168-00 is not active.
• The signal voltage for the pressure in the fuel rail is
more than 4.8 Volts DC for 0.6 seconds.
System Response:
If equipped, the diagnostic lamp will flash and the
derate lamp will come on. The diagnostic code will
be logged.
The electronic service tool will display "70000 kPa"
next to "Desired Fuel Rail Pressure" and "Actual Fuel
Rail Pressure" on the status screens.
Possible Performance Effect:
The engine will be derated.
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Troubleshooting Section
i03799136