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P0016

Crankshaft/camshaft position correlation (Bank 1 Sensor A)

The ECU has detected that the crankshaft and Bank 1 intake camshaft signals are not correctly synchronised.

What this code means

The ECU has detected that the crankshaft and Bank 1 intake camshaft signals are not correctly synchronised.

Possible causes

  • Stretched or jumped timing chain/belt
  • Crankshaft or camshaft sensor fault
  • Reluctor/tone wheel problem
  • VVT system fault
  • Low or contaminated oil on engines using oil-controlled timing

Common symptoms

  • Check engine light
  • Hard starting
  • Rough running
  • Loss of power
  • Possible rattling from timing components

Checks to make

  1. Check for related crank/cam sensor codes
  2. Inspect oil level and condition
  3. Compare cam/crank correlation with scan data
  4. Have mechanical timing checked if correlation remains incorrect

Safety

  • Do not replace parts from the code alone. Confirm the fault with live data, wiring checks and manufacturer procedures. Keep clear of hot or moving engine components.

Model notes

The code definition is generic; exact diagnostic thresholds, component locations and repair procedures vary by vehicle.