Description
KINGBOLEN • OBD2 Automotive Diagnostic Tool ELM327
This KINGBOLEN ELM327 OBD2 diagnostic interface is a simple engine monitoring and trouble-code reading tool for vehicles equipped with a 12-volt 16-pin OBD2 port. The instrument uses the ELM327 V1.5 firmware and the PIC18F25K80 chip to communicate via Bluetooth 3.0 with Android devices and Windows PCs. Ideal for car owners and DIYers, the tool reads generic and manufacturer‐specific diagnostic trouble codes (DTCs), clears the check engine light, and displays real-time engine data such as RPM, coolant temperature, fuel pressure, and fuel trim. It supports all common OBD2 protocols, making it compatible with most petrol and diesel cars from the late 1990s onward.
Note: the tool does not support system diagnostics beyond the engine (e.g., ABS, SRS) or radio modules, and it works only with vehicles compliant with the OBD2 standard.
Key benefits
- Reads and clears diagnostic trouble codes, including manufacturer-specific ones
- Displays real-time data: speed, throttle, engine load, intake pressure, and more
- No subscription required; lifetime free firmware updates keep compatibility current
- Bluetooth 3.0 connectivity for Android smartphones and Windows PCs
- Small, plug-in design powered directly via vehicle’s 12 V OBD2 port
Supported protocols
- SAE J1850 PWM
- SAE J1850 VPW
- ISO 9141-2
- ISO 14230-4 (KWP-slow and fast init)
- ISO 15765-4 CAN (11-bit and 29-bit, 250-kb/s and 500-kb/s)
- SAE J1939
- Custom user CAN protocols (like USER1, USER2 masks and filters)
Supported functions
Depending on vehicle compatibility, the following functions are supported:
- Reads generic and manufacturer-specific diagnostic trouble codes (DTCs)
- Clears fault codes and turns off the malfunction indicator lamp (MIL)
- Displays sensor values: engine coolant temperature, mass air flow, intake air temperature, etc.
- Shows calculated parameters: fuel trim, engine load, fuel pressure, etc.
Included items
- 1 × KINGBOLEN ELM327 Bluetooth V1.5 diagnostic interface
- 1 × user manual











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