190E 2.3 (201.024) L4-2.3L (102.961) (1984)
Test Steps 2.0 - 5.1
b) Idle air control valve with 2-pin connection
Key To Symbols
Note
^ If the specified value of a test step, e.g. step 4.0, is in order, it is not necessary to perform test step 4.1. Different component designations are
possible depending on wiring diagram and vehicles with optional equipment. These designations are given in parentheses. This has no effect
on the test (connections, specified value).
^ Engine speed increases when the coupling is disconnected from the deceleration shutoff microswitch.
^ As of 09/88 and model year 1989: idle speed control with road speed signal. The idle speed is deactivated from approx. 1.4 km/h.
If the complaint "jerking when car moving with throttle valve closed" is indicated, test the road speed signal.