How to remove and replace the Engine Control Module (ECM) on Toyota Prius?

First users should disconnect the cable from the negative battery terminal to deactivate Air Bag and seat belt pretensioners before proceeding with ECM removal or replacement. The next step should be removal of the instrument panel sub-assembly then extraction of the No. 3 heater to register duct. Disconnect the 4 ECM connectors and the 4 hybrid vehicle control ECU connectors and then remove the 2 nuts and bolt securing the ECM with bracket followed by the 2 nuts and the 3 No.1 and 6 screw ECM brackets before installing the 4 screws and 2 No.2 and 2 No.3 ECM brackets. Begin installation by placing the No. 3 ECM bracket with 2 screws while installing the 2 No. 2 ECM brackets with 4 screws followed by the 3 No. 1 ECM brackets with 6 screws. Use the 2 nuts to install the ECM after setting the torque to 3.0 N.m (31 kgf.cm, 27 in.lbf) and then apply the 2 nuts and bolt to secure the ECM with bracket with the same torque value. Reinstall the No. 3 heater to register duct and the instrument panel sub-assembly after connecting all 4 hybrid vehicle control ECU connectors and 4 ECM connectors. You need to complete initialization by reapplying the cable to the negative battery terminal point because the systems demand this step following battery cable detachment.

How to install the Engine Control Module on Toyota Prius?

The installation starts with mounting 2 screws into the No. 3 ECM bracket followed by attaching 4 screws to 2 No. 2 ECM brackets and completing the process with 6 screws securing 3 No. 1 ECM brackets. After installing 2 nuts properly torque them to 3.0 Nm (31 kgf-cm, 27 in-lbf) then fasten the ECM using 2 nuts along with a bolt which requires the same torque value. Secure both 4 hybrid vehicle control ECU connectors and 4 ECM connectors. Follow by installing the No. 3 heater to register duct while further installing the instrument panel sub-assembly with correct installation of the instrument panel safety pad. After connecting the cable to the negative battery terminal it is necessary to initiate new system operation if the product guidelines mention negative terminal cable reconnection needs initialization steps.

OEM Toyota Prius Engine Control Module

Engine Control Computer

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18 Engine Control Modules found

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Toyota Prius ECM
Part Number: 89661-47D21
$624.35 MSRP: $915.00
You Save: $290.65 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: DENSO
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2022 Toyota Prius | L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47C30
$566.24 MSRP: $829.83
You Save: $263.59 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: DENSO
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020 Toyota Prius | L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47162
$614.14 MSRP: $900.03
You Save: $285.89 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-47161, 89661-47160, 89661-47140
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006-2007 Toyota Prius | Base, Touring | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47104
$645.80 MSRP: $946.44
You Save: $300.64 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-47070, 89661-47103, 89661-47071, 89661-47100, 89661-47101, 89661-47102, 89661-47072
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2006 Toyota Prius | Base | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89660-47514
$738.19 MSRP: $1081.83
You Save: $343.64 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer Assembly, Engine; Engine Control Module
- Replaces: 89660-47511, 89660-47512, 89660-47513, 89660-47510
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2012-2014 Toyota Prius | Five, Four, Three, Two | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89660-47435
$733.88 MSRP: $1075.51
You Save: $341.63 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer Assembly, Engine; Engine Control Module
- Replaces: 89660-47432, 89660-47434, 89660-47431, 89660-47430, 89660-47433
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011 Toyota Prius | Base | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89660-47306
$734.79 MSRP: $1076.84
You Save: $342.05 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer Assembly, Engine; Engine Control Module
- Replaces: 89660-47300, 89660-47302, 89660-47305, 89660-47304, 89660-47301, 89660-47303
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010 Toyota Prius | Base | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47E40
$617.54 MSRP: $905.01
You Save: $287.47 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Computer, Engine Control
- Manufacturer Note: DENSO,*614
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2023 Toyota Prius | LE, Limited, XLE | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47C80
$584.17 MSRP: $856.11
You Save: $271.94 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: DENSO
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2022 Toyota Prius | 2020 Edition, L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47C40
$567.03 MSRP: $830.99
You Save: $263.96 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: DENSO
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2020-2021 Toyota Prius | 2020 Edition, L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47A10
$561.70 MSRP: $823.18
You Save: $261.48 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: DENSO
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019 Toyota Prius | L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47A00
$596.64 MSRP: $874.38
You Save: $277.74 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: DENSO
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019 Toyota Prius | L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47653
$588.94 MSRP: $863.09
You Save: $274.15 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-47652, 89661-47651, 89661-47650
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2018 Toyota Prius | Four, Four Touring, One, Three, Three Touring, Two, Two Eco | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47643
$669.87 MSRP: $981.69
You Save: $311.82 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: DENSO
- Replaces: 89661-47642, 89661-47640, 89661-47641
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2018 Toyota Prius | Four, Four Touring, One, Three, Three Touring, Two, Two Eco | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47250
$594.96 MSRP: $871.92
You Save: $276.96 (32%)
Ships in 1-3 Business Days
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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:
- 2008-2009 Toyota Prius | Base, Touring | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89661-47054
$1124.21 MSRP: $1647.54
You Save: $523.33 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-47052, 89661-47053, 89661-47031, 89661-47051, 89661-47030, 89661-47050
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Prius | Base | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89660-47751
$626.17 MSRP: $917.66
You Save: $291.49 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Computer Assembly, Engine; Engine Control Module; Computer, Engine Control
- Replaces: 89660-47750
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2014-2015 Toyota Prius | Five, Four, One, Persona Series, Three, Two | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius ECM
Part Number: 89660-47550
$452.56 MSRP: $663.23
You Save: $210.67 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer Assembly, Engine; Engine Control Module; Computer, Engine Control
- Manufacturer Note: MEXICO SPEC
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2012 Toyota Prius | Five, Four, Three, Two | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)

Toyota Prius Engine Control Module

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Toyota Prius Engine Control Module Parts and Q&A

ECM
89661-47162
Q: How to remove and replace the Engine Control Module (ECM) on Toyota Prius?
A:
First users should disconnect the cable from the negative battery terminal to deactivate Air Bag and seat belt pretensioners before proceeding with ECM removal or replacement. The next step should be removal of the instrument panel sub-assembly then extraction of the No. 3 heater to register duct. Disconnect the 4 ECM connectors and the 4 hybrid vehicle control ECU connectors and then remove the 2 nuts and bolt securing the ECM with bracket followed by the 2 nuts and the 3 No.1 and 6 screw ECM brackets before installing the 4 screws and 2 No.2 and 2 No.3 ECM brackets. Begin installation by placing the No. 3 ECM bracket with 2 screws while installing the 2 No. 2 ECM brackets with 4 screws followed by the 3 No. 1 ECM brackets with 6 screws. Use the 2 nuts to install the ECM after setting the torque to 3.0 N.m (31 kgf.cm, 27 in.lbf) and then apply the 2 nuts and bolt to secure the ECM with bracket with the same torque value. Reinstall the No. 3 heater to register duct and the instrument panel sub-assembly after connecting all 4 hybrid vehicle control ECU connectors and 4 ECM connectors. You need to complete initialization by reapplying the cable to the negative battery terminal point because the systems demand this step following battery cable detachment.
ECM
89661-47250
Q: How to install the Engine Control Module on Toyota Prius?
A:
The installation starts with mounting 2 screws into the No. 3 ECM bracket followed by attaching 4 screws to 2 No. 2 ECM brackets and completing the process with 6 screws securing 3 No. 1 ECM brackets. After installing 2 nuts properly torque them to 3.0 Nm (31 kgf-cm, 27 in-lbf) then fasten the ECM using 2 nuts along with a bolt which requires the same torque value. Secure both 4 hybrid vehicle control ECU connectors and 4 ECM connectors. Follow by installing the No. 3 heater to register duct while further installing the instrument panel sub-assembly with correct installation of the instrument panel safety pad. After connecting the cable to the negative battery terminal it is necessary to initiate new system operation if the product guidelines mention negative terminal cable reconnection needs initialization steps.

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