TM 5-3805-290-23-1
TROUBLESHOOTING SYMPTOM INDEX - CONTINUED
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TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
ENGINE ECM - CONTINUED
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Table 1. MID 036 -Engine Control System - Continued.
TROUBLE-
CID
SHOOTING
FMI
FAULT
PROCEDURE
CODE
DESCRIPTION
FAULT CONDITIONS/EFFECTS
PAGE
0091 08
Throttle Position Signal
ECM will log diagnostic code. This code is generated when an open
Abnormal.
circuit for throttle position sensor or for voltage supply is present. ECM
returns engine to low idle or a safe speed when problem is detected.
Diagnostic code is logged only if engine is running. ET will indicate
DIAG and a throttle position of 0 percent while diagnostic code is
active. This will happen regardless of position of throttle pedal
assembly. Engine will remain at low idle or at safe speed while code is
active.
0091 12
Accelerator Pedal -
ECM will log diagnostic code. This code is generated when ECM
Power Supply Failure.
detects a 5V failure or a 5V fault. ECM will return engine to low idle
or to predetermined safe speed while diagnostic code remains active.
When this code is generated, a low power and reduced engine speed
condition may also be present.
0100 03
Engine Oil Pressure
This code is generated when ECM reads signal voltage above normal,
Sensor Open/Short to
has been powered for at least 15 seconds, and codes 262-03 and 262-
+Batt.
04 are not active. ECM will log diagnostic code. ECM flags oil pressure
as invalid data. Oil pressure is set to a default value of 600 kPa. This
diagnostic code will have no effect on engine performance.
0100 04
Engine Oil Pressure
This code is generated when ECM reads signal voltage below normal,
Sensor Short to Ground.
has been powered for at least two seconds, and codes 262-03 and 262-
04 are not active. ECM will log diagnostic code. ECM flags oil pressure
as invalid data and a default value of 600 kPa is used.
0100 10
Engine Oil Pressure
This code is generated when 5V connection to sensor is an open circuit.
Sensor Abnormal Rate of ECM will log diagnostic code.
Change.
0102 03
Boost Pressure Sensor
ECM detects no other active 262 or 102 codes. Engine speed is greater
Short to +Batt.
than 500 rpm, engine oil pressure signal is within expected range for
this failure mode, engine oil pressure signal remains abnormally
constant because variations in sensor signal are too small, and
conditions occur simultaneously for a period of 10 seconds. ECM will
log diagnostic code. ECM will flag engine oil pressure as invalid data.
Engine oil pressure is set to a default value. This diagnostic code will
have no effect on engine performance. ECM will set boost pressure to
a default value. MSD will display "Open/Short High" for boost pressure
on status screen. ECM will generate a CID 102-FMI 03 diagnostic code
on CAT data link. When this code is generated, a low power condition
may also be present.
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