Code Definition

P1354 — Variable Valve Timing Malfunction

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Toyota

About P1354

P1354 is a manufacturer-specific powertrain diagnostic trouble code recorded for Toyota vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1354 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

This Toyota DTC sets when the Engine Control Module (ECM) detects a correlation fault between the crankshaft position sensor (CKP) and camshaft position sensor (CMP) signals that indicates a malfunction in the Variable Valve Timing (VVT) system. The ECM expects a specific phase relationship between the crank and cam signals and actively varies it through the oil control valve and VVT actuator. This code logs when the measured timing falls outside the specified range or fails to respond to VVT control commands, pointing to a hydraulic, mechanical, or electrical problem in the system. The driver...

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