Whenever ECU is replaced, ensure that the CAN bus lines are normal.
DTC SET CONDITIONS
The PHEV-ECU sets a relevant DTC when it receives fault information or Airbag deployed information from the ECM via CAN.
PROBABLE CAUSES
The MPI system fails.
Airbag deployed
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
Check whether DTC (including tentative code) is set in MPI system (Refer to GROUP 13A - Troubleshooting, Diagnosis Chart ).
Is the DTC set?
Carry out troubleshooting for the DTC.
Go to Step 2.
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
Check if DTC B1499 is set in the SRS-ECU (Refer to GROUP 52B - Troubleshooting, Diagnostic Trouble Code Chart ).
Is the DTC set?
Carry out troubleshooting for the DTC B1499 (Refer to GROUP 52B - Diagnostic Trouble Code Procedures, DTC B1499: Air bag deployment determined by SRS-ECU ).
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).