Crankshaft/camshaft position correlation — Bank 1 Sensor A
The controller detected a crankshaft-to-camshaft timing relationship outside its expected window for Bank 1 intake camshaft sensing.
Conditions that can produce P0016
These are diagnostic branches, not a ranked parts list. Prevalence and testing order depend on the exact vehicle and failure scene.
- Stretched, jumped, or incorrectly installed timing chain/belt
- Variable-timing actuator or oil-control problem
- Crank or cam sensor, target wheel, wiring, power, or ground fault
- Low oil pressure or restricted oil passage
- Required relearn or calibration procedure not completed
What to inspect next
- Screen for abnormal noise, oil-pressure warning, stalling, and severe power loss
- Preserve correlation and variable-timing codes from the same event
- Compare crank/cam signals or verified angle data
- Confirm base mechanical timing and application-specific relearn requirements
Evidence that strengthens the answer
Verify the repair
Preserve the pre-repair record, document exactly what changed, then repeat the relevant operating condition safely. Confirm no current or pending fault returns, review permanent-code and readiness state where applicable, and state which tests or modules remained unavailable.
This page explains a commonly standardized code at a general level. Confirm the exact definition, module, status, test conditions, thresholds, wiring, and service process for the vehicle application using current official information.