Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSCION2008XD AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCE2ZR-FE ENGINE CONTROL SYSTEMSFI SYSTEMDTC P1607 CRUISE CONTROL INPUT PROCESSORINSPECTION PROCEDURE
2008 Scion xD Automatic
Inspection Procedure
2008 Scion xD AutomaticSECTION Inspection Procedure
- READ OUTPUT DTC (DTC P1607)
- Connect a Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the tester ON.
- Clear DTC (See DTC CHECK / CLEAR ).
- Turn the ignition switch to OFF and turn the tester OFF.
- Disconnect the tester.
- Disconnect the cable from the battery negative (-) terminal and wait for 1 minute.
- Connect the cable to the battery negative (-) terminal.
- Connect the tester to the DLC3.
- Turn the ignition switch to ON.
- Turn the tester ON.
- Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
- Read DTCs.
Result
RESULT REFERENCEResult Proceed to No output A P1607 B
B : REPLACE ECM (See REMOVAL )
A : CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT PROBLEMS )
RENDER: 1.0x
NO RELATED
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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.