DTC U0100-530: Lost Communication with ECM / PCM "A"; DTC U0129-527: Lost Communication with Brake System Control Module; DTC U0129-528: Lost Communication with Brake System Control Module; DTC U0140-146: Communication Error from Body ECU to HV ECU; DTC U0151-763: Communication Error from Airbag ECU to HV ECU; DTC U0164-827: Communication Error from A/C ECU to HV ECU; DTC U1107-436: Lost Communication with Power Management Module [11/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON (IG).
3. Enter the following menus: System Select / Health Check.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   Hybrid vehicle control ECU outputs P2532-772	A
   Hybrid vehicle control ECU does not output P2532-772 (w/ Toyota Safety Sense C)	B
   Hybrid vehicle control ECU does not output P2532-772 (w/o Toyota Safety Sense C)	C

5. Turn the ignition switch off.

Result: 

A 

REFER TO DTC CHART (P2532-772) 

Refer to DTC P2532-772: Ignition Switch Run Position Circuit High [11/2015 - ] )

Result: 

B 

REFER TO CAN COMMUNICATION SYSTEM (w/ Toyota Safety Sense C) 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2015 - ] )

Result: 

C 

REFER TO CAN COMMUNICATION SYSTEM (w/o Toyota Safety Sense C) 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2015 - ] )