DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B" [09/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Clear DTCs. Refer to DTC CHECK / CLEAR [09/2015 - ] ).
4. Make sure that the DTC detection conditions are met.

   HINT: 

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

   1. Turn the engine switch on (IG) and wait 7 seconds or more.
   2. Drive the vehicle at 1 km/h (1 mph) or more for 1 second or more.
5. Check for DTCs. Refer to DTC CHECK / CLEAR [09/2015 - ] ).

   Result

   Result	Proceed to
   DTC U0100, U0101, U0123, U0129 and U0142 are not output	A
   DTC U0100, U0101, U0123, U0129 or U0142 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] )

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - 08/2020] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - ] )