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Electrical diagnostics at Truck Shark Diesel Repair in Long Grove, Illinois

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Truck electrical diagnostics and repair in Long Grove, IL

Electrical faults get chased with a laptop plugged into the truck, not by throwing parts at it. We pull the codes, follow the circuit and repair the actual break.

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What the job covers

  • Full ECM and module fault code scan
  • Wiring, connector, ground and harness repair
  • Charging system: alternator, batteries, cables
  • Starting system and no-crank faults
  • Cab, marker and trailer lighting faults
  • 7-way plug and trailer wiring repair

Bring it in when you see this

  • Warning lights with no obvious cause
  • Battery going flat overnight
  • Intermittent no-crank or slow crank
  • Lights flickering or dead on one side
  • Trailer lights only working sometimes
  • Gauges reading wrong or dropping out

Why bring it to Truck Shark

We are a shop-based diesel repair facility at 7101 IL Rt 83, Long Grove, IL 60060, right on Route 83 and a few minutes from I-94. Tractor, trailer and reefer work happens in the same bays, so one visit can cover the whole rig instead of two stops at two shops.

Truck Shark technicians working in the Long Grove shop

Walk-ins are welcome. Calling ahead at (224) 327-2077 lets us reserve a bay and start sourcing parts before you arrive.

Questions

About electrical diagnostics

Do you have diagnostic equipment on site?
Yes. Diagnostics are run on the truck in our bays with a laptop on the ECM.
Can you find an intermittent fault?
That is exactly what the scan and circuit tracing are for. Tell us when it happens and what the truck is doing at the time, it narrows the search a lot.
Related work

Handled in the same visit

Diesel engine repairLong Grove, IL DPF / DEF repairLong Grove, IL Trailer repairLong Grove, IL

Down for repair? Bring it to the bay.

7101 IL Rt 83, Long Grove, IL 60060 · Mon–Fri 8AM–5PM · Sat 8AM–12PM

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