Leeroy_25

ON My LTX-12 ECU there are 3 indicator lamps on the front panel, Red, yellow and green. Can anyone tell me what these are for and what is supposed to light up with ignition? I cannot find anything in the manual other than maybe the yellow one is something to do with TPS calibration. Help appreciated.

Thank you
Lee

WJM ROTARIES

Red is for logging a fault, green is power is on and yellow flashing is injector pulsing and or ign pulse

Leeroy_25

Thanks for the reply. So yellow and green should be on when ignition comes on. And yellow should be flickering maybe?
Cheers
Lee

eliminster

Green should be on once key is turned and as soon as it starts to crank yellow should start to pulse. If there is any fault in the ecu the red light will flash to a code specific to the fault.

bumpstart

green is 12v

yellow pulses with ignition
.. a solid yellow solid ( with handset and dash unplugged, engine not running ) is for mechanical TPS calibration

red codes are faults,, often fleeting ,, bit prone to give home and ref errors with noise during cranking leaving up a false flag

.. holding down program mode button while in screen 33 for several seconds will reset the logs

Leeroy_25

Thank you for the info guys.
Very helpful.

Cheers
Lee