Harbor Freight Tools


ZR4 OBD2 Code Reader

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Zurich Product Support

OBD2 - Professional Diagnostics for the Master Technician

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Product Overview

The ZURICH® ZR4 OBD2 Code Reader is ideal for service writers and weekend mechanics. It’s compact, convenient and quickly reads and clears basic trouble codes and lights on virtually all foreign or domestic car, light truck, minivan, SUV manufactured since 1996. The ZR4 features an option to display in either English or Spanish, and it displays 20 data points at once on a 2.8 in. color screen. Technicians can view freeze frame data, and a patented vehicle health monitor LED makes it simple to check for emissions readiness. The hot key feature allows access to the menu with one-touch functionality.

  • Works with virtually all cars, light trucks, minivans, SUVs or hybrids manufactured since 1996 (OBD2) – foreign and domestic
  • All-in-one color display shows 20 data points at a time, including Diagnostic Trouble Codes (DTC) and their definitions
  • Color-coded LEDs give at-a-glance indication of emissions test readiness and vehicle condition
  • Freeze frame shows engine condition at time the Malfunction Indicator Light (MIL) was triggered
  • Reads Engine Control Unit (ECU) information
  • Multilingual display - English, Spanish

Important Information

  • This is a clearance item. No batteries required, powered by vehicle's battery. The software update with instructions is available for download under the Software Update tab above. Coverage for new model vehicles may be limited and will be available once released by the automaker. Availability is typically 12 to 24 months after the release of the model year. Software update now available for 2017 coverage.
  • This item is subject to a 20% restocking fee


Display size (in.)
2 in.
Internet updateable (y/n)
English, Spanish
Accessories Included
OBD II connector and cable
1996 and newer vehicles with OBD port
Display type
Color LCD
Product Height
13/16 in.
Product Length
4-1/3 in.
Product Weight
0.39 lb.
Product Width
2-3/4 in.
Shipping Weight
0.50 lb.
CA Residents
Warning - Prop 65 Info
Note: Specifications are approximate and subject to change


We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.

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