12V Automotive Motor Testing Harness with Clips and Switch, Universal Diagnostic Tool for EPB, Window, Wiper and Blower

Feature: 1. Direct Battery Power: Connect directly to the car battery via clips to independently power body accessory motors, including EPB, window lifters, wipers, and AC blower motors. The bidirectional switch enables forward and reverse rotation, allowing quick diagnosis of motor jamming, short circuits, stalling, or damage ideal for testing during disassembly repairs. 2. 3 Way Switch: Built in 3 state (Forward Reverse Off) boat switch. When testing EPB motors, it accurately simulates brake lock and release actions to independently check EPB performance, greatly simplifying auto repair fault troubleshooting. 3. Thick High Temp Copper Wire: The harness uses thickened, high temperature rated copper core wire for stable current flow and low voltage drop. An overload protection fuse inside the circuit automatically disconnects power during motor short circuits or overloads, preventing burnout of batteries and motors. Safe and durable for frequent, long term shop use. 4. Wide Compatibility: Perfectly fits EPB, window, wiper, and AC blower motors of mainstream 12V sedans and SUVs. Ideal for garage maintenance inspections, isolated motor fault diagnosis, and function verification before motor replacement. An essential basic wiring tool for repair shops. 5. Easy Operation: Integrated ready to use harness with red black battery clips and independent motor output terminals no extra wiring needed. Simply clip to the car battery poles and connect the terminals to the test motor to start detection. The simple operation allows even novice auto repair technicians to master motor testing quickly. Specification: Item Type: Car Motor Diagnostic ToolMaterial: Plastic, Metal Color: Black and Red Switch Box Size: Approx. 5.2x7x4cm 2.05x2.76x1.57in Voltage: 12V Universal Compatibility: Only for 12V DC Brushed Motors. Package List: 1 x Diagnostic Tool Note: 1. Strictly avoid reverse polarity: The red clip must be connected to the positive terminal, and the black clip must be connected to the negative terminal. Reversing the polarity may cause the fuse or motor to burn out.2. Do not stall the motor for extended periods: When controlling the motor, immediately release the switch once the motor reaches its limit position (e.g., handbrake fully released tightened) to prevent overheating and damage due to stalling.3. Prohibited for use with AC motors or non automotive DC motors: This device only supports 12V DC brushed motors.