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

You must disconnect the negative battery terminal cable in the first step toward removing the 2AZ-FE engine control system ECM. After cable separation you must wait at least 90 seconds to prevent Air Bag and seat belt pretensioner activation. The glove compartment door should be removed as the subsequent step. Disconnection of the wire harness clamp precedes the process of disconnecting each of the 4 ECM connectors to remove the ECM successfully. The ECM removal process ends with the removal of the bolt along with screw and the ECM.

How to install the Engine Control Module (ECM) on Scion tC?

The 2AZ-FE engine control system requires installation of the Engine Control Module (ECM) through bolted attachment using a screw which should be tightened to 5.5 Nm (56 kgf-cm, 49 in-lbf). When installing the ECM adapter hook up its 4 connectors then secure the clamp for the wire harness. You should then install the glove compartment door. Apply the cable to the negative battery terminal after finishing all installation steps. The initialization process must be performed when specific systems need it after cable removal from the negative (-) battery terminal.

OEM Scion tC Engine Control Module

Engine Control Computer

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

13 Engine Control Modules found

View related parts
Scion tC ECM
Part Number: 89661-21642
$551.37 MSRP: $808.04
You Save: $256.67 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21641, 89661-21640
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2013-2016 Scion tC | Base | 4 Cyl 2.5 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21511
$462.61 MSRP: $677.97
You Save: $215.36 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21510, 89661-21470, 89661-21490
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2010 Scion tC | Base, Spec | 4 Cyl 2.4 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21630
$469.20 MSRP: $687.61
You Save: $218.41 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2013 Scion tC | Base | 4 Cyl 2.5 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21620
$419.56 MSRP: $614.87
You Save: $195.31 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2013 Scion tC | Base | 4 Cyl 2.5 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21600
$487.81 MSRP: $714.89
You Save: $227.08 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2012 Scion tC | Base | 4 Cyl 2.5 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21540
$485.20 MSRP: $711.06
You Save: $225.86 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2012 Scion tC | Base | 4 Cyl 2.5 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21530
$586.33 MSRP: $859.28
You Save: $272.95 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011 Scion tC | Base | 4 Cyl 2.5 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21460
$614.70 MSRP: $900.85
You Save: $286.15 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006 Scion tC | Base | 4 Cyl 2.4 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21450
$651.43 MSRP: $954.69
You Save: $303.26 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006 Scion tC | Base | 4 Cyl 2.4 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21421
$646.71 MSRP: $947.76
You Save: $301.05 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21420
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2006 Scion tC | Base | 4 Cyl 2.4 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21391
$614.70 MSRP: $900.85
You Save: $286.15 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21390
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2006 Scion tC | Base | 4 Cyl 2.4 L GAS
View related parts
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
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2010 Scion tC | Base, Spec | 4 Cyl 2.4 L GAS
View related parts
Scion tC ECM
Part Number: 89661-21652
$517.09 MSRP: $757.81
You Save: $240.72 (32%)
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module (ECM); Engine Control Module
- Replaces: 89661-21650, 89661-21651
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2013-2016 Scion tC | Base | 4 Cyl 2.5 L GAS

Scion tC Engine Control Module

Choose genuine Engine Control Module that pass strict quality control tests. You can trust the top quality and lasting durability. Shopping for OEM Engine Control Module for your Scion tC? Our website is your one-stop destination. We stock an extensive selection of genuine Scion tC parts. The price is affordable so you can save more. It only takes minutes to browse and find the exact fit. Easily add to cart and check out fast. Our hassle-free return policy will keep you stress-free. We process orders quickly for swift delivery. Your parts will arrive faster, so you can get back on the road sooner.

The Engine Control Module or widely known as the Scion tC ECM is one of the critical factors that display the reliability and efficiency of the Scion tC models. Controlling almost all essential operations of the car, Engine Control Module can be considered as an electronic brain of Scion tC, as it substantially performs such functions as administering the air-fuel mixture, ignition period, and idle rate. Such ECM can be used with different tC models, due to predominant adaptation to changed technology from early integrated circuitry to microprocessing. The Engine Control Module also improves not only power but also measures that are necessary for a car to be safe, including the Variable Valve Timing, as well as the stability control system embedded into it. Since it can be programmed for performance tuning, it can be customized; thus, the Scion tC is an enthusiasts' car. The available models on the ECM are perfectly designed to be installed directly, which enhances the software's reputation in the automobile industry. However, one has to remember that Scion tC has somehow became a cultural icon - it is associated with youth and remains a popular car due to the reasonable price and the ability to modify it. The Engine Control Module features a combination of design elements and stability that makes the part exceptional and it marks the company's diligence and innovation as a brand that creates automobiles.

Scion tC Engine Control Module Parts and Q&A

ECM
89661-21511
Q: How to remove the Engine Control Module (ECM) on Scion tC?
A:
You must disconnect the negative battery terminal cable in the first step toward removing the 2AZ-FE engine control system ECM. After cable separation you must wait at least 90 seconds to prevent Air Bag and seat belt pretensioner activation. The glove compartment door should be removed as the subsequent step. Disconnection of the wire harness clamp precedes the process of disconnecting each of the 4 ECM connectors to remove the ECM successfully. The ECM removal process ends with the removal of the bolt along with screw and the ECM.
ECM
89661-21521
Q: How to install the Engine Control Module (ECM) on Scion tC?
A:
The 2AZ-FE engine control system requires installation of the Engine Control Module (ECM) through bolted attachment using a screw which should be tightened to 5.5 Nm (56 kgf-cm, 49 in-lbf). When installing the ECM adapter hook up its 4 connectors then secure the clamp for the wire harness. You should then install the glove compartment door. Apply the cable to the negative battery terminal after finishing all installation steps. The initialization process must be performed when specific systems need it after cable removal from the negative (-) battery terminal.

Related Scion tC Parts

Browse Scion tC Engine Control Module by Years

2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005