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.
1987 Suzuki Samurai BaseFACTORY OEM SERVICE PROCEDURE
Power Circuits
- Disconnect ECM connector. Turn ignition on without turning on engine. Connect voltmeter probes to terminal No. 2 and body ground. Leave the voltmeter probe attached to ground and move other probe to terminals No. 3, 8, 9, 12, 13, 16 and 18. See Figure .
- Voltmeter should read about 12 volts for each circuit. If any circuit does not read 12 volts, check that it is properly connected or has dirty or loose connectors. Also, make sure conditions for the particular circuit are such that it is not out of contact (open) due to a signal from the sensor.
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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