Engines / UDS Engines by part number / 01 - Engine [EV_ECM20TDI01104L906016HM 001003] / Test of radiator fan control unit (J293)

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Mark	Model	Control unit	Diagnostic operation

Mark

Select a vehicle make or a common group such as Service Intervals, Engines, Transmissions, Immobilizers and Independent Heaters.

Model

Part 1 of the order number Select the first three characters of the order number of the engine control unit. This number can be found in the VCDS when linked to the uniform in the SW order number field. Do not insert the ordering number from the control unit packaging here!!!

Select the first three characters of the order number of the engine control unit. This number can be found in the VCDS when linked to the uniform in the SW order number field. Do not insert the ordering number from the control unit packaging here!!!

Control unit Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Diagnostic operation Select the desired diagnostic procedure.

Diagnostic procedure

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Conditions:
- coolant temperature= MAX. XX°C

Caution, the radiator fan may Start running at any time!

connect with the control unit - OBD Protocol

delete error memory OBD

connect with the control unit XX - engine

delete error memory

XX - Actuators

select item in drop-down menu:

IDEXXXXX - cooler fann - control unit - (JXXX)

Start

physically test the function of the activated component

desired condition: cooler fann - active / inactive

check of error memory
check of error memory OBD

if values are not achieved - check component:
- cooler fann - control unit - (JXXX)
- line

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