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 MANUALSSUZUKI1990SWIFT GL, 2D HATCHBACK, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - BASIC TESTINGIGNITION CHECKSPICK-UP COILSWIFT DOHC
1990 Suzuki Swift GL, 2D Hatchback, Standard
Swift DOHC
1990 Suzuki Swift GL, 2D Hatchback, StandardSECTION Swift DOHC
- Disconnect pick-up coil connector at distributor. Using ohmmeter, measure resistance between 2 upper terminals. See Fig 1 . See PICK-UP COIL RESISTANCE table. Replace pick-up coil if resistance is not within specification. If resistance is within specification, go to next step.
- Ensure pick-up coil has battery voltage. Disconnect pick-up coil connector at distributor. With ignition on and using voltmeter, ensure there is battery voltage at Brown/White wire terminal of connector. If voltage is not present, check wiring and connections to ECM and check ECM power supply. Repair as required. Ensure ignition coil has power, see IGNITION COIL POWER UNIT under IGNITION CHECKS in this article.
- If ignition coil and pick-up coil test okay, recheck for spark. If spark is still not available, go to the TESTS W/CODES article in this section.
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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.