Starter Motor Signal Circuit: Echo

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2003 Toyota Tacoma, 2003 Toyota RAV4, 2003 Toyota Prius, 2003 Toyota Matrix, and 2003 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.

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)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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)