TM 9-4520-272-14&P
0007 00
Fault
Troubleshooting
Description
Code
Step
*
H531
Engine oil pressure before engine start.......................................................................
13
H532
Engine Oil pressure low during engine run .................................................................
*
H541
Engine pre-heat relay driver K1 open circuit ...............................................................
*
H542
Engine pre-heat relay driver K1 short circuit ...............................................................
*
H551
Engine starter relay driver open circuit........................................................................
*
H552
Engine starter relay driver short circuit........................................................................
17
H561
Engine Throttle Stop Solenoid Relay driver K2 Open Circuit......................................
*
H562
Engine throttle stop solenoid relay driver K2 short circuit ...........................................
*
H611
Fuel solenoid valve FS1 open circuit ( burner on/off ).................................................
*
H612
Fuel solenoid valve FS1 short circuit ( burner on/off ).................................................
*
H621
Fuel solenoid valve FS2 open circuit ( burner high/low ) ............................................
*
H622
Fuel solenoid valve FS2 short circuit ( Burner high/low ) ............................................
*
H631
Fuel solenoid valve FS3 open circuit ( internal/external fuel ).....................................
*
H632
Fuel solenoid valve FS3 short circuit ( internal/external fuel ).....................................
*
H641
Fuel solenoid valve FS4 open circuit ( engine fuel/system prime ) .............................
*
H641
Fuel Solenoid Valve FS4 short Circuit ( engine fuel/system prime ) ...........................
*
H801
Watchdog (COP) Timeout (loss of software control for >1 sec)..................................
* Cannot troubleshoot malfunction at operator level. Refer heater to Unit level maintenance.
ND OF WORK PACKAGE
0007 00-3/(4 Blank)
E
