How to install the Engine Control Module on 2010 Scion tC?

The 2AZ-FE engine control system requires the ECM to be installed using a bolt and screw which should be tightened to 5.5 Nm (56 kgf-cm, 49 in-lbf). The first step is to fasten all 4 ECM connectors before installing the wire harness clamp. Proceed to install the glove compartment door right after the installation is complete. Safely attach the cable to the negative terminal of the battery before performing initialization because specific systems need this procedure during negative battery cable disconnect and reconnection.

OEM 2010 Scion tC Engine Control Module

Engine Control Computer

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2010 Scion tC ECM
Part Number: 89661-21511
$462.61 MSRP: $677.97
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21510, 89661-21470, 89661-21490
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.1 x 10.1 x 4.1 inches
- Condition: New
- SKU: 89661-21511
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2010 Scion tC Submodels:
- Base, Spec | 4 Cyl 2.4 L GAS
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2010 Scion tC ECM
Part Number: 89661-21521
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21500, 89661-21520, 89661-21480
- Item Weight: 2.20 Pounds
- Item Dimensions: 12.8 x 10.3 x 4.0 inches
- Condition: New
- SKU: 89661-21521
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2010 Scion tC Submodels:
- Base, Spec | 4 Cyl 2.4 L GAS

2010 Scion tC Engine Control Module

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2010 Scion tC Engine Control Module Parts Q&A

Q: How to install the Engine Control Module on 2010 Scion tC?
A: The 2AZ-FE engine control system requires the ECM to be installed using a bolt and screw which should be tightened to 5.5 Nm (56 kgf-cm, 49 in-lbf). The first step is to fasten all 4 ECM connectors before installing the wire harness clamp. Proceed to install the glove compartment door right after the installation is complete. Safely attach the cable to the negative terminal of the battery before performing initialization because specific systems need this procedure during negative battery cable disconnect and reconnection.