How to remove and replace the Engine Control Module (ECM) on Scion tC?

To replace the Engine Control Module (ECM) for the 2AZ-FE engine, disconnect the negative battery terminal and wait 90 seconds. Remove the glove compartment door, then disconnect the wire harness clamp and 4 ECM connectors. Finally, remove the bolt, screw, and the ECM.

How to remove and replace the Engine Control Module (ECM) on Scion xB?

In order to direct-fit the Engine Control Module (ECM) to the 2AZ-FE engine, one should first take off the air cleaner assembly by disconnecting the mass air flow meter, loosening the hose clamp, and removing the air cleaner parts. Thereafter, dismantle the ECM by extracting the lock knobs, connectors and securing bolts.

OEM Scion Engine Control Module

Engine Control Computer

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57 Engine Control Modules found

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Scion ECM
Part Number: 89661-12T90
$677.81 MSRP: $993.33
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xB | 2013-2015 | Base | 4 Cyl 2.4 L GAS
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Scion ECM
Part Number: 89661-52Y50
$428.70 MSRP: $628.26
You Save: $199.56 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xD | 2013-2014 | Base | 4 Cyl 1.8 L GAS
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Scion ECM
Part Number: 89666-52310
$465.68 MSRP: $682.45
You Save: $216.77 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xA | 2004 | Base | 4 Cyl 1.5 L GAS
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Scion ECM
Part Number: 89661-21460
$614.70 MSRP: $900.85
You Save: $286.15 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- tC | 2006 | Base | 4 Cyl 2.4 L GAS
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Scion ECM
Part Number: 89661-52A60
$466.71 MSRP: $683.97
You Save: $217.26 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xA | 2005 | Base | 4 Cyl 1.5 L GAS
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Scion ECM
Part Number: 89661-21642
$551.37 MSRP: $808.04
You Save: $256.67 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21641, 89661-21640
Fits the following Scion Models:
- tC | 2013-2016 | Base | 4 Cyl 2.5 L GAS
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Scion ECM
Part Number: 89661-74471
$618.22 MSRP: $906.01
You Save: $287.79 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Computer, Engine Control
Fits the following Scion Models:
- iQ | 2015 | Base | 4 Cyl 1.3 L GAS
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Scion ECM
Part Number: 89661-74450
$546.04 MSRP: $800.23
You Save: $254.19 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-74100
Fits the following Scion Models:
- iQ | 2012 | Base | 4 Cyl 1.3 L GAS
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Scion ECM
Part Number: 89661-0W172
$596.54 MSRP: $874.25
You Save: $277.71 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-0W170
Fits the following Scion Models:
- iM | 2016 | Base | 4 Cyl 1.8 L GAS
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Scion ECM
Part Number: 89661-52E42
$492.12 MSRP: $721.21
You Save: $229.09 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-52E41, 89661-52E40
Fits the following Scion Models:
- xB | 2005-2006 | Base | 4 Cyl 1.5 L GAS
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Scion ECM
Part Number: 89661-12F10
$532.87 MSRP: $780.93
You Save: $248.06 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xB | 2008 | Base | 4 Cyl 2.4 L GAS
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Scion ECM
Part Number: 89661-12T80
$497.35 MSRP: $728.86
You Save: $231.51 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xB | 2013-2015 | Base | 4 Cyl 2.4 L GAS
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Scion ECM
Part Number: 89661-52T90
$519.75 MSRP: $761.69
You Save: $241.94 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xD | 2011-2012 | Base | 4 Cyl 1.8 L GAS
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Scion ECM
Part Number: 89661-12N11
$550.24 MSRP: $806.37
You Save: $256.13 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-12N10
Fits the following Scion Models:
- xB | 2011-2012 | Base | 4 Cyl 2.4 L GAS
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Scion ECM
Part Number: 89661-52M20
$531.24 MSRP: $778.53
You Save: $247.29 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xD | 2010 | Base | 4 Cyl 1.8 L GAS
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Scion ECM
Part Number: 89661-52U00
$464.32 MSRP: $680.46
You Save: $216.14 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xD | 2011-2012 | Base | 4 Cyl 1.8 L GAS
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Scion ECM
Part Number: 89661-52D01
$413.02 MSRP: $605.28
You Save: $192.26 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-52D00
Fits the following Scion Models:
- xA | 2006 | Base | 4 Cyl 1.5 L GAS
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Scion ECM
Part Number: 89661-52M10
$585.15 MSRP: $857.54
You Save: $272.39 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xD | 2010-2011 | Base | 4 Cyl 1.8 L GAS
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Scion ECM
Part Number: 89661-52Y60
$465.45 MSRP: $682.13
You Save: $216.68 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
Fits the following Scion Models:
- xD | 2013-2014 | Base | 4 Cyl 1.8 L GAS
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Scion ECM
Part Number: 89661-52D12
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-52D10, 89661-52D11
Fits the following Scion Models:
- xA | 2006 | Base | 4 Cyl 1.5 L GAS

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1-20 of 57 Results

Scion Engine Control Module Parts and Q&A

ECM
89661-21511
Q: How to remove and replace the Engine Control Module (ECM) on Scion tC?
A: To replace the Engine Control Module (ECM) for the 2AZ-FE engine, disconnect the negative battery terminal and wait 90 seconds. Remove the glove compartment door, then disconnect the wire harness clamp and 4 ECM connectors. Finally, remove the bolt, screw, and the ECM.
ECM
89661-12J60
Q: How to remove and replace the Engine Control Module (ECM) on Scion xB?
A: In order to direct-fit the Engine Control Module (ECM) to the 2AZ-FE engine, one should first take off the air cleaner assembly by disconnecting the mass air flow meter, loosening the hose clamp, and removing the air cleaner parts. Thereafter, dismantle the ECM by extracting the lock knobs, connectors and securing bolts.

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