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.
1999 Chevrolet Cutaway 7.4 JFACTORY OEM SERVICE PROCEDURE
Conditions For Setting DTC
Conditions for setting the DTC:
- A new (never installed in a vehicle) Passlock™ module has been installed and the ignition is turned to ON but is not rotated to CRANK. Once the ignition switch has been rotated to CRANK, the Passlock™ module will learn the Passlock™ code.
- The Passlock™ module is in the learn mode but does not see a valid Passlock™ sensor code because of a sensor or a wiring problem.
Factory Service Tools
Use the Manual With the Right Hardware
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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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