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Home >> Lexus >> 2002 >> LS 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 155 (Air Bag Restraint Systems) >> Removal & Installation >> Engine Control Module (ECM) >> Removal & Installation
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Removal & Installation

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Disconnect negative battery cable. Remove clips and engine room side cover. See Fig 1. Remove bolts and ECM cover.
  2. Remove nuts, disconnect electrical connectors and remove ECM. Peel off sponge part of ECM gasket. Cover ECM connector with a shop rag, and using gasket remover or equivalent, apply gasket remover on remaining tape of gasket. Using caution not to damage ECM seal's surface, use knife and remove tape.
  3. To install, reverse removal procedure. Clean ECM seal gasket surface with non-residue solvent and install NEW gasket. Tighten nuts and bolts to specification. See TORQUE SPECIFICATIONS . Connect negative battery cable. Initialize power seat Electronic Control Unit (ECU). See SYSTEM INITIALIZATION  under COMPUTER RELEARN. Adjust radar cruise control system.
Fig 1: Identifying Engine Control Module (ECM)
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