1. Measure the voltage between engine mount control solenoid valve 2P connector terminals No. 1 and No. 2.

Is there battery voltage?

YES | - | Go to Step 8 .
NO | - | Repair an open in the wire between ECM/PCM (B15) and the engine mount control solenoid valve 2P connector. If the wire is OK, update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, and recheck. If the engine mount control system works properly, and the ECM/PCM was updated, the troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM. ■

1. Raise the engine speed above 1,000 rpm (min −1 ).