Chevrolet P16A0: Sensor Communication Circuit Low Voltage

Is your scanner showing Chevrolet P16A0?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Chevrolet P16A0: Sensor Communication Circuit Low Voltage

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$100-$250
Can I Still Drive?
:
Yes (Short-term only)

What Does The Chevrolet P16A0 Code Mean?

This DTC means that the ECM detects the position sensor signal voltage is less than 1.45 V for greater than 5s.

Conditions for setting the DTC:

  • The engine is operating for greater than 10s.
  • The engine speed is greater than 600 RPM.
  • DTCs P16A0, P16A1, and P16A2 run continuously once the above conditions are met.

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Electric Throttle Body- S20064 ROADFAR
>>> ACDelco Professional 213-4668 Throttle Position Sensor
>>> GM Genuine Parts 12633238 Engine Control Module

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

  • GM, 2014, Service Bullettin – Malfunction Indicator Lamp (MIL) On, Various DTCs Set, IPC Inoperative, Display and/or BCM Fuse Blown.
  • GM, 2020, Service Bullettin – PIT5677C SES MIL / No Start / No Crank / Runs Rough / Reduced
    Engine Power / VSS / DTCs (Inspect Engine Harness).
  • GM, 2020, Service Bullettin – PIT5742 SES MIL / No Start / No Crank / Runs Rough / Reduced
    Engine Power / Loss Communication / DTCs (V8 and V6 Inspect Engine Harness).
  • GM, 2020, Service Bullettin – PIT5713A SES MIL / IPC Gauges Sweep / IPC Warning Message /
    Reduced Engine Power / Loss Communication / Various DTCs (V6 Inspect Engine Harness).
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