Engines / UDS Engines by part number / 01 - Engine [EV_ECM20BTD01103L906022JB 002007] / Test of heating (glow) unit (J179)

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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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Note:
- check component: glowing - fuse
- on-board voltage > XX V

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 - glowing - control unit

Start

wait XXs

check of error memory
check of error memory OBD

desired condition: number of faults = X

upon non--achievement of condition check component:
- glowing - control unit
- line

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