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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 108 (ENGINE CONTROLS - SELF-DIAGNOSTICS)DIAGNOSTIC TESTSDTC P0617: STARTER RELAY CIRCUIT HIGHDIAGNOSIS & REPAIR (USING OBD-II SCAN TOOL)
2004 Toyota Matrix XR, FWD, Standard

Diagnosis & Repair (Using OBD-II Scan Tool)

2004 Toyota Matrix XR, FWD, StandardSECTION Diagnosis & Repair (Using OBD-II Scan Tool)
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine room ECM cover and hood. Turn the ignition switch ON. Measure the voltage between terminal STA of the ECM connector and body ground while cranking engine. See Fig 1. Voltage should be 6 volts or more. If not, go to next step.
    Fig 1: Checking Voltage Between ECM Terminal STA & Ground
    G00165162Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Check park/neutral position switch. See DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) . Replace park/neutral position switch as necessary. If okay, go to next step.
  3. Turn the ignition switch ON. Measure the voltage between terminal STA of the ECM connector and body ground while cranking engine. See Fig 1. Voltage should be 6 volts or more. If not, go to next step.
  4. Check continuity between the connector terminals on ignition switch. See IGNITION SWITCH CONNECTOR RESISTANCE  table. If okay, go to next step. If not okay, replace ignition switch and go to next step.
  5. Check for open in harness and connector between ECM and starter relay. Repair as necessary. If okay, go to next step.
  6. Turn the ignition switch ON. Measure the voltage between terminal STA of the ECM connector and body ground while cranking engine. See Fig 1. If voltage is 6 volts or more, system is okay. If not, check and replace ECM.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.