Power & Ground Circuits

For testing of power and ground circuits, see information in PIN VOLTAGE CHARTS article. See ECM LOCATION table for identifying ECM mounting locations.

ECM LOCATION

Model	Location
Corolla	Bottom Center Of Dash, In Front Of Console

NOTE: Figs. Fig 1, Fig 2 and Fig 3 identify ECM terminals on vehicles which are used for performing tests on various components in this article. For ECM terminal identification on remaining models, see PIN VOLTAGE CHARTS article.

Fig 1: Identifying ECM Terminals (1.8L M/T)

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Fig 2: Identifying ECM Terminals (1.6L)

Fig 3: Identifying ECM Terminals (1.8L A/T)