wc_tx003818gb_FM10.fm
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Engine Control Module (ECM) Diagnostics RT / RTx
5.2 ECM Stages of Engine Start Up
The ECM displays codes as the machine goes through the start up sequence.
These codes are described below.
Note: It is not necessary to enter the diagnostic mode to view these codes.
Code State Description
■ 8.8.8 for 3 seconds
■ C 1.x for 2 seconds (Kohler)
■ H 1.x for 2 seconds (Kubota)
■ F_L or F_O for 3 seconds
Power up Power up delay cycle.
Software version.
Software version.
Current tip over/roll over mode.
1 Stop/Idle During this state, power is applied to
the ECM and decoder but the engine
is off. The ECM is waiting for the start
signal to initiate the glow plug cycle.
2 Preglow During this state, the glow sensor
determines the glow time and power is
applied to the glow plugs. This cycle
starts immediately after the control
box power switch is placed in the ON
position.
3 Prestart Post preglow state. The ECM is
waiting for the starting cycle.
4 Start Power is being applied to starter.
5 Post glow 5 second post glow after engine start.
6 Run Standard running mode.
7 Fault All functions stopped. Waiting repeat
of power up cycle.
Faults that produce engine shut down:
■ low oil pressure
■ over temperature
■ tip over
■ over voltage
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