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August 25, 2020


Every week, we review new fixes submitted by our Direct-Hit users and pick our favorite “Fix of The Week.” These are confirmed, experience-based fixes directly from technicians and shops. You can find this and more than 3.5 million other confirmed fixes in Direct-Hit with a 14-day free trial. This week, our favorite fix is for a 2016 Chevrolet Silverado that will not start, has no crank and the cluster goes black.

The Vehicle:

2016 Chevrolet Silverado

The Problem:

The vehicle will not start, has no crank function, and the cluster goes black while in the crank position. The DTC’s are as follows: P00C7, P0106, P0192, P0193, P0341, P0641, P2227, P2228, and P2230.

The Diagnosis:

By using the scan tool, I looked at the 5-volt reference 1 reading. This is the 5-volt circuit that is common to all of the sensor faults listed. If it’s reading low or 0 volts, unplug the sensors one at a time called out by faults. I started with the fuel-tank, fuel-line, and fuel-rail pressure sensors, the multi-function intake air sensor, and the a/c pressure sensor. Then I watched the voltage on the scan tool as the sensors were unplugged. Once the voltage goes up to 5-volts, the faulty sensor is successfully identified.

The Solution:

Use the scan tool to find the faulty a/c pressure sensor.


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