Camshaft Position Sensor
2018-2024 Toyota Camry · 3.5L V6
Sensor Type
hall-effect
Waveform Type
dc-square
Location
Bank 1 (front/radiator side): Left cylinder head front, behind timing chain cover. Bank 2 (rear/firewall side): Right cylinder head front, behind timing chain cover. Both sensors monitor intake camshafts.
Pins
3-pin connector
Idle Frequency
14 Hz
Timebase
50ms/div
Voltage Scale
2V/div
Trigger
2.5V, rising edge
Wiring
Red/Yellow (12V supply), Black/Orange (ground), Green/White for Bank 1 or Blue/White for Bank 2 (signal output)
Expected Voltage Range
At Idle
0.2V to 4.8V
At Higher RPM
0.1V to 4.9V
Expected Pattern
3 pulses per camshaft revolution with varying pulse widths for position identification, pattern repeats every 720 crankshaft degrees, asymmetric tooth pattern for sequential fuel injection timing
Known-Good Waveform
Digital square wave switching between 0.3V and 4.7V with three distinct pulses of different widths per revolution, occurring at half the frequency of the crankshaft sensor. The pulse pattern should be consistent and synchronized with VVT-i operation. During VVT-i adjustment, the phase relationship between cam and crank sensors will shift smoothly.
Common Failure Patterns
Missing pulses in the pattern, inconsistent pulse widths, or timing drift between sensor and actual camshaft position
Cause: VVT-i system malfunction causing actual camshaft position to differ from commanded position, sensor reading incorrectly due to excessive play in timing chain
Diagnostic Tips
The 2GR-FKS has dual VVT-i on intake camshafts. When diagnosing cam sensor issues, always compare Bank 1 and Bank 2 waveforms simultaneously to identify timing chain stretch or VVT actuator problems. Normal VVT range is approximately 40-50 degrees of adjustment at idle.
Related Diagnostic Trouble Codes
P0340P0341P0342P0343P0344
Always confirm waveform data with your vehicle's OEM service manual before diagnosing.
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