TM 5-3805-290-23-1
TROUBLESHOOTING SYMPTOM INDEX - CONTINUED
0007 00
TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
ENGINE ECM - CONTINUED
0007 00
Table 1. MID 036 - Engine Control - Continued.
TROUBLE-
CID
SHOOTING
FMI
FAULT
PROCEDURE
CODE
DESCRIPTION
FAULT CONDITIONS/EFFECTS
PAGE
0774 03
Secondary Throttle
This code is generated when ECM detects voltage for throttle position
Position Sensor Open/
sensor is above normal or detects an invalid throttle position signal.
Short to +Batt.
ECM will log diagnostic code. ECM will return engine to low idle or
to a safe speed while diagnostic code is active. When this code is
generated, a low power condition or reduced engine speed may also
occur.
0774 04
Secondary Throttle
This code is generated when ECM detects voltage for throttle position
Position Sensor Short to
sensor is below normal or detects an invalid throttle position signal.
Ground.
ECM will log diagnostic code. ECM will return engine to low idle or
to a safe speed while diagnostic code is active. When this code is
generated, a low power condition or reduced engine speed may also
occur.
0774 08
Secondary Throttle
This code is generated when ECM detects voltage for throttle position
Position Sensor Signal
sensor is below abnormal or detects an invalid throttle position signal.
Abnormal.
ECM will log diagnostic code. ECM will return engine to low idle or
to a safe speed while diagnostic code is active.When this code is
generated, a low power condition or reduced engine speed may also
occur.
0774 12
Secondary Throttle
This code is generated when ECM detects abnormal throttle position
Position Sensor - PSU
sensor signal or when throttle position signal fails. ECM will log
Failure.
diagnostic code. ECM will return engine to low idle or to a safe speed
while diagnostic code is active. When this code is generated, a low
power condition and reduced engine speed may also occur.
1627 03
Fuel Pump Relay
This code is generated when ECM still receives signals from fuel
Voltage High/Open
injection pump relay and ECM has already switched off relay. ECM
Circuit.
will log diagnostic code. This diagnostic code will have no effect on
engine performance.
1639 09
Machine Security
This code is generated when ECM detects no response from Machine
System Module Not
Security System (MSS). ECM will log diagnostic code. ECM will
Communicating on Link. inhibit fuel injection and engine will not start.
0007 00-10
