DTC P2649: VTEC Solenoid Valve Circuit High Voltage Turn the ignition switch ON (II). Clear the DTC with the HDS. Start the engine. Hold the engine speed at 3,000 rpm (min −1 ) without load (in Park or neutral) until the radiator fan comes on, then let it idle. Check for DTCs in the DTCs MENU with the HDS. Is DTC P2649 indicated?
YES | - | Go to Step 5 .
NO | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the VTEC solenoid valve and the ECM/PCM.■
Turn the ignition switch OFF. Disconnect the VTEC solenoid valve 2P connector. Measure resistance between VTEC solenoid valve 2P connector terminals No. 1 and No. 2. Is there 14−30 Ω?
YES | - | Go to Step 8 .
NO | - | Go to Step 13 .