Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the power switch ON (IG).
3. Turn the intelligent tester ON.
4. Enter the following menus: DIAGNOSIS / OBD/MOBD / CODES (All).
5. Read and record CAN communication malfunction DTCs.

   Result: 

   RESULT REFERENCE
   
   

   Display (DTC Output)	Proceed to
   U0100 (INF 211) or U0129 (INF 220)	A
   U0100 (INF 211) and CAN communication malfunction DTCs	B
   U0129 (INF 220) and CAN communication malfunction DTCs	B
   P3108 (INF 594) and CAN communication malfunction DTCs	B

   HINT:

   • When DTCs other than CAN communication malfunction DTCs are output simultaneously, first correct the CAN communication problem, and then perform troubleshooting for other DTCs.
   • DTC P3108 (INF 594) is one of the DTCs that indicates a CAN communication malfunction.

B : GO TO CAN COMMUNICATION SYSTEM 

A : GO TO NEXT STEP 

1. Check connection condition of each connector of the HV control ECU, ECM and battery ECU, as well as contact condition of each terminal shown in the table.
   ECU TYPES AND TERMINALS NO REFERENCE
   
   

   Type of ECU	Terminal No.	Symbols
   HV control ECU	H16-7	+B1
   HV control ECU	H16-6	+B2
   HV control ECU	H14-8	CANH
   HV control ECU	H14-9	CANL
   ECM	E6-31	CANH
   ECM	E6-30	CANL
   Battery ECU	B11-18	CANH
   Battery ECU	B11-19	CANL

   OK : Connectors have been connected securely and there is no poor contact on each terminal. 

NG : CONNECT SECURELY 

Fig 1: Identifying HV Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : CHECK FOR INTERMITTENT PROBLEMS