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 MANUALSVOLVO1987760 GLE, 4D WAGON, AW71REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFUEL INJECTION SYSTEM - BOSCH LH (NON TURBO)TESTINGGROUND CIRCUITS (USING AN OHMMETER)
1987 Volvo 760 GLE, 4D Wagon, AW71
Ground Circuits (Using An Ohmmeter)
1987 Volvo 760 GLE, 4D Wagon, AW71SECTION Ground Circuits (Using An Ohmmeter)
- On models with the 2.8L engine, turn ignition off. Connect negative lead of an ohmmeter to ground. Connect other lead to terminals No. 5, No. 11, No. 19 and No. 25. Ohmmeter should indicate zero ohms on all circuits.
- On models with the 2.3L engine, turn ignition off. Connect negative lead of an ohmmeter to ground. Connect other lead to terminals No. 11 and No. 25. Ohmmeter should indicate zero ohms on all circuits.
- If any terminal shows a high resistance or infinite resistance, the wire connected to that terminal must be traced and repaired. Wires are grounded at intake manifold.
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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.