Starter Motor Signal Circuit: Echo

For starter signal circuit inspection and wiring diagram, see Fig 1-Fig 5 . Before replacing ECM, check ECM connectors and ground circuits. See ENGINE CONTROL MODULE POWER & GROUND CIRCUITS .

Fig 1: Starter Motor Signal Wiring Diagram (ECHO)

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Fig 2: Starter Motor Signal Circuit Inspection Using Toyota Hand-Held Tester - Steps 1-3 (ECHO)

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Fig 3: Starter Motor Signal Circuit Inspection Using Toyota Hand-Held Tester - Step 4 (ECHO)

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Fig 4: Starter Motor Signal Circuit Inspection Using OBD II Scan Tool - Steps 1-4 (ECHO)

Fig 5: Locating Data Link Connector No. 3 (ECHO)