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DTC Troubleshooting: U0401 (134-2)

DTC U0401:
 F-CAN Malfunction (TCM Received Invalid Data from ECM)
  1. Turn the ignition switch to ON (II).
  1. Clear the DTCs with the HDS.
  1. Start the engine.
  1. Change the engine speed from idle to 4,000 rpm (min −1 ) twice.
  1. Check for DTCs with the HDS.
Is DTC U0401 indicated?
YES -
Check for Fuel and Emissions systems DTCs with the HDS.■
NO -
Intermittent failure, the system is OK at this time.■