Description 1. The CAN Test Box is a CAN bus circuit tester compatible with 12- and 24-volt systems; 2. Tests the DLC (OBD port) for any faults before connecting other diagnostic equipment to the DLC, such as short circuits and polarity reversal; 3. Real-time display of communication signals (e.g., communication protocol signals) on the assigned pins, which can quickly locate faults and replace the voltage measurement function of a digital multimeter; 4. Quick connection of 16 pins during vehicle diagnostics; 5. Monitors the input voltage to the OBD during module burning, high and low voltage alarms; It can be connected to other diagnostic tools, such as multimeters, oscilloscopes, diagnostic scanners, etc. Allows you to easily check the car's problem; Quickly confirm which pin has a problem. The CAN Test Box is a CAN bus circuit tester compatible with 12- and 24-volt systems; Tests the DLC (OBD port) for any faults before connecting other diagnostic equipment to the DLC, such as short circuits and polarity reversal; Real-time display of communication signals (e.g., communication protocol signals) on the assigned pins, which can quickly locate faults and replace the voltage measurement function of a digital multimeter; Quick connection of 16 pins during vehicle maintenance diagnostics; Monitoring of input voltage to the OBD during module burning, high and low voltage alarms. Specifications: Input voltage: 9.0–32.0 VDC Maximum load: 2.0 A Resolution: 0.1 V Overload protection: Yes, PTC fuse (self-healing) Polarity protection: Yes, LED on pin 45 lights red Protocol standard: PWM (J1850), VPW (J1850), ISO 9141-2, DIS/ISO 14230-4, CAN (J-2284) Operating temperature: 0 ℃–50 ℃, humidity less than 70% Banana socket: 16P x 2.0 mm OBD cable length: 70 cm (27.5 inches) Color: As shown Material: ABS Package contents: 1 x Diagnostic scanner