P0016 – Meaning, Causes, Symptoms, & Fixes

Code P0016 Definition

Crankshaft Position – Camshaft Position Correlation (Bank 1, Sensor A)

What Does P0016 Mean?

The crankshaft sensor controls spark timing by alerting the ECM of the position of the crankshaft. The camshaft position tells the engine when to begin the injector sequence by relaying the camshaft’s current position to the ECM. The P0016 code is the result of the ECM detecting that either the crankshaft sensor or camshaft sensor are operating outside of their optimal specified range.

What Are the Symptoms of Code P0016?

  • Check engine light
  • Decrease engine performance
  • Engine runs rough
  • Engine may not start
  • Lower fuel economy

What Causes Code P0016?

  • Frayed cam sensor wiring
  • Frayed crank sensor wiring
  • Faulty timing belt/chain
  • Defective tone ring
  • Faulty cam sensor
  • Faulty crank sensor
  • Faulty ECM

How Serious Is Code P0016? – Moderate

This trouble code will result in the engine hesitating and increased start-up issues. If this code is present, it is recommended to have the vehicle serviced to protect from further internal engine problems that could negatively affect the drivability of the vehicle.

Code P0016 Common Diagnosis Mistakes

Prematurely replacing the cam sensor without visually inspecting the wiring around the camshaft for disconnection.

P0016 Diagnosis and Repair:

Tools Needed to Diagnose:

Difficulty of Diagnosis and Repair

  1. Check to see if there are any other codes along with P0016 and clear your Check Engine Light with FIXD.
  2. Conduct a visual inspection of wiring around the crankshaft and camshaft for fraying or disconnection.
  3. Check the freeze frame data along with cam and crank patterns to pinpoint the issue.
  4. If a problem is detected, verify the tone rings and cam/crank sensors have been installed correctly, if not consider replacing the respective sensor.
  5. If no problem is detected, inspect the wiring of the timing belt for disconnection.
  6. Repair or replace timing belt if applicable.

Was this post helpful?

Comments 7

Peter Sywensky

December 13, 2018

Need to try and locate where sensor wiring is

Edward Gordon Bryan

January 16, 2019

On the 2007 E350 Mercedes the camshaft position sensor bank 1 sensor A where is it located


June 14, 2019

Not to sure but I have a Clk350 is a very similar engine is located on the front of the engine on the right hand side as you seated on the car as 2 sensors exactly the same


January 25, 2019

2008 Ford Expedition xl, camshaft position sensor bank 1, where is located? Code p0016


February 17, 2019

you will have a waveforms p0016 correlation good and bad

Leslie Otts

May 26, 2019

Can this be expensive to fix ?

Everett Roland Boatwright

November 22, 2019

How Expensive is This to Fix

en English