DTC Troubleshooting: P2649 (21)
DTC P2649:
 Rocker Arm Oil Control Solenoid Circuit High Voltage
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Start the engine. Hold the engine speed at 3,000 rpm (min −1 ) without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P2649 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the rocker arm oil control solenoid and the ECM/PCM.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the rocker arm oil control solenoid 2P connector.
  1. Measure the resistance between rocker arm oil control solenoid 2P connector terminals No. 1 and No. 2.
Is there 14−30 Ω at room temperature?
YES -
Go to Step 8 .
NO -
Go to Step 12 .