At Ashdan Eng. we prefer to focus strongly on accurate diagnostics instead of the replace all parts approach ( referred to as the parts canon ) . This can be more time intensive initially but will save thousands later in misguided labour and unnecessary parts spend.

This service is available separately without any commitment to repairs if requested.

JLR specific diagnostics and module coding. 

⚡ Electrical System Diagnostics 

Our workshop is fully equipped to diagnose the faults that beat ordinary tools.

  • Automotive oscilloscopes with current, ignition, and differential probes

  • True RMS multimeters and high-resolution DC clamp meters for precision readings

  • Insulation resistance testing (megger) for tracing shorts, wiring breakdown, and moisture ingress

  • Power probes / logic probes for rapid circuit interrogation

  • Back-probing tools, breakout boxes, fuse tap kits

  • Sensor simulators and resistor substitution boxes for signal testing

  • CAN and LIN bus breakout boxes for network analysis

  • Signal generators for component stimulation

  • Data loggers for tracking intermittent faults over time

  • Thermal imaging for identifying electrical resistance, hotspots, and load issues


🔋 Starting, Charging & Power Management

Diesel reliability is everything — and we test it properly:

  • Conductance and load testing for batteries

  • Carbon pile testing for heavy-load assessment

  • Alternator ripple testing to detect rectifier and stator faults

  • Starter current draw analysis for slow crank/no crank issues

🔍 Mechanical Verification Tools

For when an electrical symptom has a mechanical root cause:

  • Borescope / inspection cameras

  • Chassis ear / stethoscope for pinpointing knocks, rattles, and drivetrain vibration

  • Dial gauges for precision measurement

  • Infrared temp guns for diesel-specific issues like injector temps and EGR cooler behaviour

🧩 Component Bench Testing

For isolating issues off-vehicle:

  • Adjustable bench power supplies 

  • Relay and fuse testing equipment

  • Component test harnesses

  • Controlled load testing for actuators, solenoids, pumps

  • Factory level diagnostics & programming.

Full diagnostics & data on hand to identify the root cause of any issues you may experience. 

Supplied to you in report form for your own use if required.

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