DTC P1615: Communication Error from Distance Control ECU to HV ECU [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 FOR DTCs (RADAR CRUISE)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.
- Check for DTCs.
Result
Result Proceed to DTC is not output A DTC is output B - Turn the power switch off.
B → See step 6
A: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (DTC P1615)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2013 - ] .
- Turn the power switch off.
- Turn the power switch on (IG).
- Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
- Check for DTCs.
Result
Result Proceed to DTC is not output A DTC P1615 is output B - Turn the power switch off.
B → See step 3
A → See step 5
- REPLACE DRIVING SUPPORT ECU ASSEMBLY
Refer to REMOVAL [08/2013 - ]
NEXT: Go to next step
- CHECK FOR DTCs (DTC P1615)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2013 - ] .
- Turn the power switch off.
- Turn the power switch on (IG).
- Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
- Check for DTCs.
Result
Result Proceed to DTC is not output A DTC P1615 is output B - Turn the power switch off.
B → See step 7
A → END
- USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]
- GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]
- REPLACE POWER MANAGEMENT CONTROL ECU. Refer to REMOVAL [08/2013 - ]