The TopDiag P200Pro Smart Hook Master Edition is a high-performance, multifunctional automotive circuit tester designed for 9V–48V electrical systems. It is an upgraded version of the standard P200, extending its support to higher-voltage vehicles like trucks and construction machinery while adding advanced features like leakage detection and enhanced fuel injector maintenance.
Key Features and Capabilities
Fuel Injector Analysis & Cleaning: Supports both online and offline testing. It can simulate injector signals (analog output), capture real-time signals, and perform cleaning modes to diagnose engine idling instability or high fuel consumption.
Leakage Current Test: A standout feature that detects real-time current magnitude, plots current waveforms, and can record data for up to one hour for later review.
Enhanced Multimeter & Oscilloscope: Measures DC voltage and diodes. The single-channel oscilloscope displays electrical waveforms for PWM, crank, and fan speed signals.
Component Activation: Capable of activating high-power components like motors and bulbs with instantaneous currents up to
Relay Testing: Includes a dedicated relay test box to quickly check 4-terminal and 5-terminal relays.
Power Supply: Offers an adjustable safe voltage output for testing sensitive ECU/PCM driver circuits and sensors.
Technical Specifications
Feature Specification
Operating Voltage 9V – 48V DC
Measured Voltage Rangeto
Max Instantaneous Current
(Component Activation)
Continuous LoadUp to
Display 2.4-inch (320*240 DPI) TFT Color Display
Compatibility Cars, Trucks, Motorcycles, Boats, Excavators
Fuel Injector Cleaning Instructions
To use the cleaning function, follow these steps provided in the TopDiag User Manual:
Preparation: Turn off the engine and connect the tester clips to the vehicle battery (Red to +, Black to -).
Connection: Unplug the fuel injector connector. Connect the probe’s auxiliary ground lead to the negative side and the probe tip to the positive side of the injector.
Operation: Enter the “Injector Test” menu and select a cleaning mode (Modes 1–4). Press OK to trigger pulses and observe the spraying status.
These product listings and user manuals provide detailed specifications and usage instructions for the TopDiag P200 Pro automotive circuit tester:
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