YELLOW LED - Indicates there is a possible problem. GREEN LED - Indicates that all engine systems are running normally (all Monitors on the vehicle are active and performing their diagnostic testing, and no DTCs are present).Ħ. Jewelry is highly conductive, and can cause a severe burn if it makes contact between a power source and ground.ĥ. Loose clothing can become caught in the fan, pulleys, belts, etc. To prevent an explosion, keep all sparks, heated items and open flames away from the battery.ĭon't wear loose clothing or jewelry when working on an engine. The vehicle's battery produces highly flammable hydrogen gas. To prevent damage to the on-board computer when taking vehicle electrical measurements, always use a digital multimeter with at least 10 megOhms of impedance. Turn the ignition OFF before connecting the Code Reader to or disconnecting the Code Reader from the vehicle’s Data Link Connector (DLC). Block the drive wheels with suitable blocks.Ĭonnecting or disconnecting test equipment when the ignition is ON can damage test equipment and the vehicle's electronic components. Put the transmission in park (for automatic transmission) or neutral (for manual transmission). To prevent severe burns, avoid contact with hot engine parts.īefore starting an engine for testing or trouble-shooting, make sure the parking brake is engaged. Keep a safe distance from these parts as well as other potentially moving objects.Įngine parts become very hot when the engine is running. To avoid serious injury, always be aware of moving parts. When an engine is running, many parts (such as the coolant fan, pulleys, fan belt etc.) turn at high speed.
To protect your eyes from propelled objects as well as hot or caustic liquids, always wear approved safety eye protection. To prevent serious injury or death from carbon monoxide poisoning, operate the vehicle ONLY in a well-ventilated area. When an engine is running, it produces carbon monoxide, a toxic and poisonous gas. 8464 - 2-5/8 Electric Oil Pressure Gauge.
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