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
1684 00
Fuel Injection Pump
This code is generated when electronic fuel injection pump detects fuel
Above Normal.
temperature above normal operating range. This can occur when fuel
temperature may be above recommended maximum operating
temperature or there may be an internal fault within fuel injection pump.
Recommended maximum operating fuel temperature is 158F (70C)
at fuel injection pump intake. Electronic fuel injection pump will note
that fuel temperature is too high. ECM will log diagnostic code. When
this code is generated, fuel injection pump will be derated, and low
power and reduced engine speed may occur.
1684 02
Fuel Injection Pump Data This code is generated when fuel injection pump detects an internal
Erratic.
failure of fuel injection pump software. ECM will log diagnostic code.
ECM will not allow engine to start while diagnostic code is active. ECM
will cause engine to shut down. When this code is generated, engine
will not start while diagnostic code is active.
1684 03
Fuel Injection Pump
This code is generated when fuel injection pump detects an internal
Open/Short to +Batt.
failure of fuel injection pump software. ECM will have no response to
this active code. ECM will log diagnostic code. When this code is
generated, an incorrect amount of fuel may be injected into cylinders.
Engine may have reduced power. Continuing to use engine may lead
to engine failure.
1684 04
Fuel Injection Pump
This code is generated when fuel injection pump detects supply voltage
Short to Ground.
below normal or an intermittent signal while engine is running. ECM
will log diagnostic code. There is no obvious effect on engine
performance.
1684 05
Fuel Injection Pump
This code is generated when ECM detects invalid PWM signal from
Open Circuit.
fuel injection pump, likely caused by a fault in CAN data link. ECM
will log diagnostic code. When this code is generated, ECM will cause
fuel injection pump to stop injecting fuel. ECM will then cause engine
to shut down.
1684 07
Fuel Injection Pump
This code is generated when ECM detects improper response from fuel
injection pump, fuel injection, or timing system. ECM will log
Improper Response.
diagnostic code. ECM will cause fuel injection pump to stop injecting
fuel. ECM will then cause engine to shut down.
0007 00-11
