P0016: Crankshaft Position – Camshaft Position Correlation (Bank 1 Sensor A)
The ECM continuously compares the pulse signals from the Crankshaft Position Sensor (CKP) to the Camshaft Position Sensor (CMP). Each pulse must align within a calibrated angular window (typically ±4 degrees of crankshaft rotation). If the relationship exceeds mechanical tolerances, P0016 is set.
Driveability & Safety Advisory
DANGER: Do NOT drive. Code P0016 frequently indicates a stretched timing chain, worn timing chain guides, or jumped timing teeth. Continued operation risks catastrophic engine failure from pistons colliding with valves.
Official Manufacturer TSB Advisories
Factory Condition: Timing chain stretch and plastic timing guide breakage due to low oil operation.
Factory Condition: Pre-2013 revision timing chain tensioner teeth slip backwards on cold start, causing jumped timing.
Physical Component Location & Service Access
Crankshaft sensor is at engine bottom near flywheel; camshaft sensor is at top of cylinder head valve cover.
Electrical Specifications & Live PID Benchmarks
Scan Tool Live Data Targets
Digital Multimeter (DMM) Specs
Documented Model-Specific Case Studies
Root Cause: Timing chain stretched over 0.25 inch from fuel dilution in oil.
Verified Fix: Replace primary timing chain, guides, tensioner, and both intake VCT phasers.
Technician Inspection & Testing Workflow
Listen for timing chain rattle: If a harsh mechanical clattering noise is audible on cold start, assume timing chain slack immediately.
Check with dual-channel oscilloscope: Probe CKP on Channel A and CMP on Channel B. Compare waveform alignment to known-good factory reference trace.
Remove valve cover or timing inspection plug: Visually inspect timing chain tensioner extension length. If tensioner is fully extended (> 7 clicks), the chain is stretched and must be replaced.
Recommended Diagnostic Tools & Verified Parts
BlueDriver Bluetooth Pro OBDII Scan Tool
Wireless sensor telemetry & enhanced diagnostics (Engine, ABS, Airbag). Delivers verified vehicle repair reports.
Autel AutoLink AL519 / AL319 OBD2 Scanner
Color screen standalone scanner. One-click I/M emissions readiness status, freeze-frame data, live DTC reset.
AstroAI Digital Multimeter 6000 Counts TRMS
Auto-ranging multimeter for measuring sensor pin resistance (ohms), live DC bias voltage, and circuit continuity per OEM specs.
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Cost Breakdown
Tools & Parts Matrix
Diagnostic Questions & Answers
Can I just replace the sensor to fix P0016?
In 90% of cases, NO. P0016 is a mechanical synchronization failure, not an electrical sensor failure. Replacing the sensor rarely extinguishes P0016.