How do I fix voltage supply to the control unit too low? I have SRS light on

Hello, First, compare the actual reading to the displayed reading. If the circuit is supplying too low of voltage, look in the schematic and identify the source to check there. Eventually you will find a drop in power. If the voltage is correct, clean the connector and try again with the scanner. If the scanner always shows too low of a voltage, yet the voltage is correct, bad control module.