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.
2002 Cadillac Escalade EXTFACTORY OEM SERVICE PROCEDURE
Test Description
The numbers below refer to step numbers in diagnostic procedure.
- 4
This step is testing relay ground circuit. - 5
This step isolates circuit from IGN relay. All circuits at relay are good if test light illuminates. - 9
The open circuit will be between splice and IGN relay. - 10
Remove underhood electrical center cover and inspect circuits that are supplied a voltage by IGN relay.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.