Engine Control Module: Testing and Inspection

Fig. 25a Output signal diagnosis chart.:

Fig. 25b Output signal diagnosis chart.:

Fig. 26a Output signal diagnosis chart.:

Fig. 26b Output signal diagnosis chart.:

Fig. 27 ECU connectors.:

Fig. 28 ECU connectors.:

Using output signal diagnosis chart, Figs. 25 and 26, connect suitable adapter and voltmeter to ECU connector, Figs. 27 and 28, as specified in ``Terminal Location Of Computer'' column in diagnosis chart. Check voltage with terminal connected, ensuring tests are made under conditions specified.