Test Point 3 - Full Load Contact
TEST POINT 3 - Full load contact Ground short - Fault code 1_13Possible Causes, Elimination, Remarks
Check by means of circuit input test with a system tester 9288 or tester 9268
Select test step and operate the accelerator pedal.
Display 9288: Full load contact open
Full load contact closed
Display 9268: 1333 (full load contact open)
0000 (full load contact closed)
No display:
After disconnecting the DME control unit plug, connect the ohmmeter to terminal 53 and terminal 24 by means of test leads.
Display:
Throttle valve closed - infinite resistance
Throttle valve after approx. 2/3 opening travel - < 10 Ohms
If the values of the full load contact are not reached in this test, the test should be repeated directly on the throttle valve switch.
Disconnect plug at throttle valve switch. Connect ohmmeter between terminals 3 and 2 of the throttle valve switch by means of test leads.
Display:
Throttle valve closed - infinite resistance
Throttle valve after approx. 2/3 opening travel - < 10 Ohms
NOTE: If the full load contact fails, the control unit produces a load threshold via the air flow sensor. Values below this load threshold are the same as the switch being opened and values above the load threshold are the same as the switch being closed.