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.
2007 Chevrolet Cutaway 4.8 VFACTORY OEM SERVICE PROCEDURE
Circuit/System Testing
- Engine ON, cruise control switch ON, verify that the Cruise On/Off Switch parameter reads On.
- If the scan tool parameter reads Off, test the cruise control on switch signal circuit for an open/high resistance. If the circuit tests normal, replace the turn signal/multifunction switch.
- Ignition OFF, disconnect the harness connector at the turn signal multifunction switch.
- Engine ON, verify that the Cruise Set/Coast Switch parameter reads Off.
- If the scan tool parameter reads On, test the cruise control set/coast switch signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
- Engine ON, verify that the Cruise Resume/Accel. Switch parameter reads Off.
- If the scan tool parameter reads On, test the cruise resume/accel switch signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
- If all circuits test normal, test or replace the turn signal/multifunction switch.
Factory Service Tools
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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.
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