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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (Parking Assistance Systems) >> Diagnostic Information and Procedures >> DTC B0958, B0959, B0960, or B0961 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

The parking assist sensors are 3-wire ultrasonic sensors that are used to determine the distance between the vehicle and an object. The rear parking assist control module supplies 8 V to the parking assist sensors via the 8 V reference circuit and provides ground via the low reference circuit. The rear parking assist control module triggers the sensors in a sequential loop. After each sensor transmits, the rear parking assist control module uses the sensor echo received through the signal circuit to calculate the distance and position of an object.

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