At20 "Hg, the MAP sensor will indicate about 5 psi. This is because the MAP sensor measures "absolute" pressure, based on a perfect vacuum, rather than atmospheric pressure. A failed MAP sensor has serious implications on fuel control, vehicle tailpipe emissions and fuel economy. Symptoms of a bad or failing MAP sensor include: 1. 2 Sudden and Unexpected Slowing. The most common symptom that your cart's controller is failing is sudden and unexpected slowing while you are driving. This issue occurs when your cart suddenly starts to lose power even when you have your pedal down as far as it can go - and can be rather frustrating and upsetting. CadillacEscalade - (photo by Cadillac) The only major symptom of bad wheel speed sensor in Cadillac Escalade is the ABS warning light comes on in the instrument cluster, and the anti-lock braking system is disabled. When the ABS light / comes on in your Escalade, the anti-lock braking system is disabled. The vehicle can still be braked Thepath can be a full-battery voltage for a high-speed operation or a path through one or more resistors to reduce the motor's voltage and current for a low-speed operation. A blower motor usually works under four speeds. Low Speed. The current flows through three resistors, dropping the voltage to about four volts and four amperes. Medium Speed .

symptoms of a bad vehicle speed sensor