In Stock SKU: HE-20062

Mack DTC Fault Code Eraser for Heavy-Duty Trucks

A plug-in hardware device that permanently masks recurring DTC fault codes in Mack heavy-duty engine management systems, clearing warning lights and restoring full power without software modification.

250 $
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2-Year Warranty
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Mack trucks are built for heavy haul and construction transport — workhorses that operators depend on to run hard with minimal downtime. As these vehicles accumulate miles, permanent DTC fault codes can become lodged in the engine management memory: cleared by a scan tool one day, back on the dash by the next key cycle. These repeating entries keep warning lights lit, can trigger engine power restriction, and generate unplanned workshop visits that disrupt fleet planning and eat into margins. The Mack DTC Fault Code Eraser is a plug-in hardware device that electronically masks these persistent records at the ECU level, restoring clean instrument readings and uninterrupted vehicle availability.

How Does It Work?

The eraser connects to the Mack engine control unit via the factory OEM connector — no wire cutting, no soldering, no permanent harness modification. Once active, it continuously supplies the ECU with the sensor and circuit signals that fall within the expected healthy operating range. The control unit processes the data, detects no fault condition, and ceases to regenerate the related permanent DTC entries. Dashboard warning lamps remain off and the engine operates without power restriction.

Permanent DTC records that repeatedly return after scan-tool deletion are durably masked
Fault and engine warning lights on the instrument panel are extinguished
Engine power restriction and limp mode triggered by fault codes are prevented
Fleet vehicle downtime and lost revenue from recurring faults are reduced
Repeat diagnostic and workshop visits are significantly cut
Drivers are freed from false-alarm fatigue and can respond to genuine alerts

Frequently Asked Questions

Which Mack models is this eraser compatible with?

It covers popular Mack heavy-duty series including the Anthem, Granite, and Pinnacle. Confirm your vehicle's VIN and ECU details before ordering so compatibility can be verified.

Is installation difficult and how long does it take?

The eraser fits on a plug-and-play basis into the OEM connector — no wire cutting or soldering required. Installation is completed in a few minutes without specialist tools.

Is the installation reversible?

Yes. The eraser is a physical module; removing it returns the truck to its original stock condition with no lasting software modification to the ECU.

Is there a legal disclaimer?

This product is designed for race and closed-circuit use. Compliance with applicable emissions legislation on public roads is the sole responsibility of the user.