OEM 2010 Toyota Yaris Engine Control Module

2010 Toyota Yaris Parts Questions & Experts Answers

• Q: How to remove the Engine Control Module (ECM) on 2010 Toyota Yaris?

  A: The first task to remove the Engine Control Module (ECM) for the 1NZ-FE engine control system requires disconnecting the negative battery terminal cable. The Hatchback requires removal of front wiper arm head caps after which both front wiper arms and blades must be taken off. The front wiper arm head cap removal process must be completed for the Sedan while both wiper arm and blade assemblies need the same treatment as well. Move to the next step where you must remove the hood to cowl top seal from the Hatchback and proceed to remove the cowl side ventilator sub-assemblies LH and RH for the Sedan. During the procedure both body models require different steps where the Hatchback needs cowl ventilator louver sub-assembly removal but the Sedan LHD requires only cowl ventilator louver sub-assembly removal. Proceed to remove the windshield wiper motor alongside its link from both Hatchback and Sedan models. Maintenance personnel should remove Cowl to Register duct Sub-assembly Number 2 on Hatchback vehicles or detach the 3 claws from Sedan front air shutter seal. Each cowl top panel needs its outer part removed for both body styles yet the procedure requires wire harness deconnection and removal of bolts. Completed ECM extraction requires removing the harness clamp with 2 lock knobs followed by connector disconnection of 2 ECM ports and the unfastening of bolt and 2 nuts. Begin by uninstalling both the bracket screws before proceeding with the removal of ECM bracket No. 2 using its two screws.