Mercedes Sprinter / Dodge ECU Repair – No 5V Sensor Reference

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Price Exclusive of GST

Our minimum assessment fee is $150 + GST (Excluding Headlights). This just covers the time to check the unit over. If you proceed with the repair, we’ll apply this to the total cost. Our full terms of trade can be found here. Has repair work been attempted by your customer? Link here !

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Australian customers, we can pick up from your Workshop. Click Here to arrange a pickup

International Customers:
When sending a unit from overseas, please declare it as “Repair and Return” with a low customs value (around $100 USD) to avoid unnecessary import fees. - All Repair Prices are quoted in NZD

Mercedes Sprinter / Dodge ECU Repair – No 5V Sensor Reference

ECU Part No: A 646 150 63 72 | 2006–2018 Models

This is a repair service for the engine control unit (ECU) used in 2006–2018 Mercedes-Benz Sprinter and Dodge-branded variants, specifically for units with no 5-volt reference signal to key sensors such as the crankshaft position sensor or accelerator pedal position sensor.

Common Symptoms Repaired:

  • Crank sensor or accelerator pedal not reading

  • Engine cranks but does not start

  • Diagnostic trouble codes for sensor voltage out of range or missing signal

  • No 5V reference detected on ECU pinout

  • Check Engine Light illuminated with multiple sensor-related faults

What We Do:

  • Diagnose and repair the 5V reference circuit within the ECU

  • Replace failed voltage regulators, transistors, or track-level components

  • Test and verify all sensor reference lines on a bench rig

  • Confirm correct 5V output to crank and accelerator sensors

Applies To:

  • Mercedes-Benz Sprinter (2006–2018)

  • Dodge Sprinter (equivalent U.S. market models)

  • ECU Part Number: A 646 150 63 72 646 150 63 72

  • Other Bosch ECU numbers may also apply (please enquire)

Turnaround Time: 2–4 business days
Warranty: 12 months on repaired 5V output circuit

💡 Avoid the high cost and downtime of a replacement ECU — we restore your original unit with tested, reliable repairs.