DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0104-87: Lost Communication with Cruise Control Module Missing Message; DTC U0122-87: Lost Communication with Vehicle Dynamics Control Module Missing Message [11/2017 - ]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - ]

2. Perform the following to make sure that the DTC detection conditions are met.

   HINT: 

   If the following conditions are not met, the system cannot detect the malfunction.

   1. Turn the ignition switch to ON.
   2. Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
   3. Drive the vehicle at 36 km/h (22 mph) or more for 5 seconds or more.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - ]

   Result

   Result	Proceed to
   DTC U0100-87, U0104-87 and U0122-87 are not output	A
   DTC U0100-87, U0104-87 or U0122-87 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - ] 

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - ]