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 MANUALSBMW1993740IL (E32/2) V8-3982CC 4.0L DOHC (M60)REPAIR AND DIAGNOSISLIGHTING AND HORNSLAMP CONTROL MODULETESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWDESCRIPTION OF BMW DIAGNOSTIC SYSTEMSYSTEMATIC TROUBLESHOOTINGWIRE TESTINGCURRENT TEST
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Current Test
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Current Test
Example of a Current Test:
Current Test:
1 Ammeter
2 Power distribution box (fuse)
3 Switch for reversing light
4 Disconnected plug-and-socket connection
5 Rear light
Measuring instrument: Ammeter
Test Procedure:
To measure the current, connect the ammeter leads in series with the current. For this purpose, connect the test lead to the plug and socket of a disconnected plug-and-socket connection.
The ammeter will show the current flowing through the circuit.
RENDER: 1.0x
NO RELATED
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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.