9/13/19

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) WWW.EBAAUTOPARTS.COM Page 1346

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) WWW.EBAAUTOPARTS.COM Page 1346



The idle speed with warm engine is below the permissible range limit. (P1999)



Possible cause:



- M16/6 (Throttle valve actuator)



- Inspect the intake system of the engine for leaks.



Affected functions:



- Engine output



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Test 1: Check component M16/6 (Throttle valve actuator).



Test 2: Check air filter and intake tract for blockage.



1. Check component M16/6 (Throttle valve actuator).



Test 1.1: Check internal resistance of component M16/6 (Throttle valve actuator).



Test 1.2: Test voltage supply of the potentiometers of component M16/6 (Throttle valve actuator).



Test 1.3: Check component M16/6 (Throttle valve actuator) using actual value.



Test 1.4: Check component M16/6m1 (Actuator motor) by means of actuation.



Test 1.5: Check internal resistance of component M16/6m1 (Actuator motor).



1.1. Check internal resistance of component M16/6 (Throttle valve actuator).



Figure legend



- A -ConnectionTest cable 35-pin socket box



- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)



- 05 -35-pin socket box



- 050 -126-pin socket box



- 108 -Test cable 266 589 01 63 00



- N3/10 (ME-SFI [ME] control unit)



- II 1-63ConnectionTest cable



- III 64-126ConnectionTest cable



Warning!



- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).



Continue to test with button F2