Electronic Control Unit (Ecu)

Operate engine to normal operating temperature. Connect Engine Signal Monitor (49 9200 162) and Adapter (49 9200 163) to ECU and wiring harness. Place selector switch and monitor switch on terminal voltage to be tested.
Turn ignition on. Note voltage of designated terminals. See Fig 1 through Fig 4 . If voltage is not within specification, check wiring circuit and individual component.

Fig 1: Non-Turbo ECU Terminal Voltages (1 of 2)

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Fig 2: Non-Turbo ECU Terminal Voltages (2 of 2)

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Fig 3: Turbo ECU Terminal Voltages (1 of 2)

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Fig 4: Turbo ECU Terminal Voltages (2 of 2)

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