Test Point 5 - Load Signal
TEST POINT 5 - Load signal - Fault code 2_21Possible Causes, Elimination, Remarks
From LH control unit terminal 25 a lead runs to EZK control unit terminal 9 and transmits a signal representing actual load.
If a fault occurs here, check the wiring and the plug contacts. If the load signal is not present at the EZK control unit, the ignition is retarded in the part-load operating range by up to 25° Crankshaft (CS) (full load mapped zone, as protective circuit). Renew the control unit if necessary.