Repair Procedures: Removal: Notes
NOTE:
When replacing the ECM, the vehicle equipped with the smart key must be performed the procedure as below.
[In the case of installing used ECM]
- Perform "Neutral mode" procedure with GDS.
(Refer to Body Electrical System - "SMART KEY SYSTEM - SONATA HEV article")
- Turn the ignition ON and OFF position after completing "ECM neutral mode".
Then the ECM key register process is completed automatically.
[In the case of installing new ECM]
Turn the ignition ON and OFF position after completing "ECM neutral mode".
Then the ECM key register process is completed automatically.
NOTE:
This ECM is a PCM type that includes a Transaxle Control Module (TCM). Therefore TCM must be performed TCM learning procedure after replacing or reinstalling a TCM. (Refer to "AUTOMATIC TRANSAXLE CONTROL SYSTEM - SONATA HEV
article")
- Shut off the High Voltage circuit.
(Refer to "HIGH VOLTAGE SHUTOFF PROCEDURE ")
- Turn ignition switch OFF and disconnect the negative (-) battery cable.
- Disconnect the ECM Connector (A).
- Remove the air cleaner assembly.
(Refer to "ENGINE INTAKE & EXHAUST SYSTEM - SONATA HEV " article")
- Release the reservoir (A) after removing the bolts (B).
- Disconnect the power cable (A) from the HPCU.
- Pull the lever (B) in the direction of the arrow with the hook (C) pressed.
- Press the lever (D), and then pull the power cable connector.
- Remove the nut of the battery plus cable (A) in the engine room relay box.
- Disconnect the fixing clips (B) of the battery plus cable protector from the bracket.
- Pull the battery plus cable (A) toward the engine room to make space for the bracket bolt removal.
- Remove the ECM bracket assembly (A) after removing the installation bolt (B) and nut (C).