Caution / Notice / Hint
NOTE:
- Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.
Refer to REGISTRATION [10/2022 - 11/2023] , or refer to REGISTRATION [11/2023 - ]
- When the ECM is replaced on a vehicle with a non-specified battery, it is necessary to perform battery type switching.
Refer to REGISTRATION [10/2022 - 11/2023] , or refer to REGISTRATION [11/2023 - ]
- Before replacing the ECM, refer to Service Bulletin (for Immobiliser System).
- Perform Registration (VIN registration or frame number registration) after replacing the ECM.
Refer to REGISTRATION [10/2022 - ]
- After replacing the engine stop and start ECU assembly, perform learning of the external backup boost converter (eco run vehicle converter assembly).
Refer to REGISTRATION [10/2022 - 11/2023] , or refer to REGISTRATION [11/2023 - ]
- Inspect the fuses for circuits related to this system before performing the following procedure.
- When the engine stop and start ECU or oil pump with solenoid assembly is replaced, check the oil pump with solenoid assembly.
Refer to REGISTRATION [10/2022 - 11/2023] , or refer to REGISTRATION [11/2023 - ]
- After replacing the engine stop and start ECU or airbag ECU assembly, clear and calibrate the deceleration sensor zero point in the engine stop and start ECU.
Refer to REGISTRATION [10/2022 - 11/2023] , or refer to REGISTRATION [11/2023 - ]
- Make sure to perform Reset Memory (A/T initialization), when replacing the automatic transaxle assembly, ECM or engine assembly.
Refer to INITIALIZATION [10/2022 - ]
HINT:
- Using the GTS, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.
Refer to FREEZE FRAME DATA [10/2022 - 11/2023] , or refer to FREEZE FRAME DATA [11/2023 - ]
- DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.