Introduction

Component Testing:

Notes:

Relevant safety codes and accident prevention regulations must be observed when carrying out tests and work on the engine electrical and electronic systems.

Caution!

Dangerous high voltage in the primary and secondary circuit of the Ignition system.

Important!

Wherever possible, the battery should not be disconnected otherwise the defect code stored in all the control units will be deleted.

Disconnect control unit from the wire harness only when the ignition is switched off.

Conduct wire tests only with the control unit or component connectors disconnected.

Test Equipment:

The schematics can be found in Diagrams / Electrical.

The universal adapter can be used with the corresponding connection leads to pick off signals from the DME control unit or from the engine wire harness.

The universal adapter should only be connected between the control unit and wire harness when no diagnostic procedure ([1][2]diagnostic connector not connected) is to be carried out since this can lead to malfunctions.

Use only suitable test leads, terminals and probe tips.

The test values for component testing are listed in - Technical Data -.

Removal and installation are described in Service and Repair Instructions.

Overview of Defect Codes and Component Tests:

Overview Of Defect Codes And Component Tests: