TM 5-3805-290-23-1
TROUBLESHOOTING SYMPTOM INDEX - CONTINUED
0007 00
TROUBLESHOOTING WITH A DIAGNOSTIC CODE
ENGINE ECM
0007 00
N OT E
If fault code(s) to be troubleshot are not located in this table, contact your local Caterpillar dealer.
Table 1. MID 036 - Engine Control System.
TROUBLE-
CID
SHOOTING
FMI
FAULT
PROCEDURE
CODE
DESCRIPTION
FAULT CONDITIONS/EFFECTS
PAGE
0041 03
8V Sensor Power Supply ECM will log diagnostic code. This code is generated when ECM has
Short to +Batt.
been powered for at least three seconds and ECM reads signal voltage
above normal. ECM will return engine to low idle or safe speed. Engine
will remain at low idle or safe speed while diagnostic code remains
active. When this code is generated, a low power condition may also
be present.
0041 04
8V Sensor Power Supply ECM will log diagnostic code. This code is generated when ECM has
Short to Ground.
been powered for at least three seconds and ECM reads signal voltage
above normal. ECM will return engine to low idle or safe speed. Engine
will remain at low idle or safe speed while diagnostic code remains
active. When this code is generated, a low power condition may also
be present.
0091 02
Incorrect Throttle Switch ECM will log diagnostic code. This code is generated when signal from
Inputs.
throttle idle validation switch is invalid. Throttle switch is ignored by ECM
until fault is repaired. Throttle switch will also be ignored by ECM until
engine start switch has been turned to OFF position and then back to ON
position. When this code is generated, engine speed defaults to low idle
or a predetermined safe speed. Engine will remain at this speed while
diagnostic code remains active. Reduction of speed is determined by
current engine speed. When a fault is detected and engine is above
predetermined safe speed, engine will reduce speed to safe speed. When
a fault is detected and engine is below predetermined safe speed, engine
will match correct speed.
0091 03
Accelerator Pedal -
ECM will log diagnostic code. This code is generated when ECM has
Voltage Above Normal.
been powered for at least three seconds or ECM reads a signal voltage
above normal. 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.
0091 04
Accelerator Pedal -
ECM will log diagnostic code. This code is generated when ECM has
Voltage Below Normal.
been powered for at least three seconds or ECM reads a signal voltage
above normal. 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.
0007 00-5
