Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2009TUNDRA 2WD V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRINSTALLATION
2009 Toyota Tundra 2WD V8-4.7L (2UZ-FE)
Installation
2009 Toyota Tundra 2WD V8-4.7L (2UZ-FE)SECTION Installation
2UZ-FE ENGINE CONTROL SYSTEM: ECM: INSTALLATION
INSTALLATION
1. INSTALL ECM GASKET
(a) Clean the ECM seal's surface with non-residue solvent.
(b) Attach a new gasket to the ECM.
2. INSTALL ECM
(a) Install the ECM with the 4 bolts.
Torque: 8.0 Nm (82 kgf-cm, 71 in-lbf)
NOTICE:
- Make sure the gasket is not folded or caught on any area on the surrounding part.
- Make sure there is no foreign matter caught between the gasket and surrounding part.
- Do not damage the gasket.
(b) Connect the 2 ECM connectors and push each lock lever down to lock the ECM connectors.
NOTICE:
- Make sure that the lock lever is raised 90° before connecting the ECM connectors. Failure to do this may cause the lock lever and terminals to break.
- Do not twist the wire harness when connecting the ECM connectors.
3. CONNECT CONNECTOR HOLDER BLOCK
(a) Install the connector holder block with the 3 bolts.
Torque: 7.3 Nm (74 kgf-cm, 65 in-lbf)
4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTE: Some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.