Vauxhall Workshop Service and Repair Manuals > Astra H > J Engine and Engine Aggregates | Fuel Injection Systems | Simtec 81 | Diagnostic Information and Procedures | Diagnostic Procedures | Simtec 81, Z 22 YH | C-xx Fault Isolation Procedures

Result	Cause Of Fault
E001	Result: Defective Component
	Defective component: A84 Control Unit - Engine Important: Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.

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