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.
Test 18, Check Right Coil Circuit
Repeat test procedures in TEST 17, but crank engine during each test connection. If test light blinks continuously during each test, replace right coil pack, and check for fault codes. If test light does not blink continuously during each test connection, one or both coil wires are open. Check connectors, and service or replace harness. Check for fault codes. If vehicle still does not start, go to next test.
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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.