How To Fix P0697 Code - Sensor Reference Voltage C Circuit Open Repair
In this video, I walk you through the steps to diagnose the P0697 diagnostic trouble code which relates to a Sensor Reference Voltage C Circuit Open. This electrical issue usually impacts your automatic transmission, transfer case, or differentials, leading to shifting failures or an inability to engage four-wheel drive. I explain why the PCM sets this code when it fails to see the required five-volt reference signal. We cover how to fix P0697 code by inspecting specific fuses that might blow under load and checking wiring harnesses for physical damage. You will see how to use a digital multimeter to test for voltage and ground at the sensor connector to determine if the problem is a broken wire, a bad sensor, or a PCM programming error. Following these testing procedures helps you avoid replacing expensive parts unnecessarily.
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