System: Powertrain (P-Code) Coverage: SAE Standard (Generic) Fault Family: crank_cam_correlation

Code P0016: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A

Diagnostic & Technical Explanation

Code P0016 (Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A) sets when the ECM compares crankshaft and camshaft position signals and finds their relative timing outside the expected window, or cannot establish a stable engine position sync. This is most often caused by timing chain/belt stretch or a jumped tooth, a failing crankshaft or camshaft position sensor, worn tensioner/guides, or reluctor-wheel damage.

Probability-Ranked Repair Procedures (3 Ranked Fixes)

Rank #1

Inspect and replace crankshaft/camshaft position sensor

Moderate DIY

Parts Estimate: $25.0–$90.0 USD Labor Estimate: 0.8 Shop Hours

1. Identify which sensor the correlation fault points to on the scan tool freeze frame
2. Unplug and remove the affected position sensor
3. Inspect the reluctor wheel/tone ring for chips or debris
4. Install the new sensor with correct air-gap shim and clear codes

Required Replacement Parts: 🔧 Crankshaft position sensor · 🔧 Camshaft position sensor

Rank #2

Inspect timing chain/belt for stretch or jumped timing

Professional Required

Parts Estimate: $150.0–$900.0 USD Labor Estimate: 3.5 Shop Hours

1. Remove the timing cover and verify cam-to-crank alignment against factory timing marks
2. Measure chain stretch or check belt tooth wear
3. Replace the timing chain/belt, tensioner, and guides as a set
4. Reset timing to factory marks and verify correlation with a scan tool

Required Replacement Parts: 🔧 Timing chain/belt kit (chain or belt, tensioner, guides)

Rank #3

Repair crank/cam sensor wiring and connectors

Professional Required

Parts Estimate: $10.0–$60.0 USD Labor Estimate: 1.2 Shop Hours

1. Back-probe the sensor signal and ground at each connector while cranking
2. Voltage-drop test the harness runs back to the ECM
3. Repair chafed conductors near the timing cover with heat-shrink splices
4. Confirm clean square-wave signals on a scope

Required Replacement Parts: 🔧 Automotive wiring repair kit (solder + heat-shrink)

Code P0016: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A

Probability-Ranked Repair Procedures (3 Ranked Fixes)

Inspect and replace crankshaft/camshaft position sensor

Inspect timing chain/belt for stretch or jumped timing

Repair crank/cam sensor wiring and connectors

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