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 [08/2013 - ]: Procedure
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC OUTPUT (ALL)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Check for DTCs of all systems by following the prompts on the Techstream screen.
- Check for DTCs.
Result
Result Proceed to Power management control ECU outputs P2532-772 A Power management control ECU does not output P2532-772 B - Turn the power switch off.
B → See step 2
A → See step 3
- GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]
- GO TO DTC CHART (P2532-772). Refer to DTC P2532-772: Ignition Switch Run Position Circuit High [08/2013 - ]