What are the guidelines and requirements for reprogramming the Engine Control Module on 2005 Toyota Celica?

Starting in 2001, Toyota/Scion and Lexus vehicles feature flash reprogrammable Powertrain Control Modules (PCM). Reprogramming should follow Technical Service Bulletins. Use validated tools like the Toyota/Lexus scantool or J2534 interfaces. The process requires specific software and equipment, and must be uninterrupted to avoid damaging the vehicle controller.

OEM 2005 Toyota Celica Engine Control Module

Engine Control Computer

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8 Engine Control Modules found

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2005 Toyota Celica ECM
Part Number: 89661-2G391-84
$380.50 MSRP: $560.31
You Save: $179.81 (33%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-2G390, 89661-2G391
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.1 x 9.8 x 4.1 inches
- Condition: New
- SKU: 89661-2G391-84
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
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Fits the following 2005 Toyota Celica Submodels:
- GT, GTS | 4 Cyl 1.8 L GAS
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2005 Toyota Celica ECM
Part Number: 89661-2G382-84
$458.74 MSRP: $679.86
You Save: $221.12 (33%)
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Product Specifications
- Other Name: Celica Reman Ecu; Engine Control Module
- Replaces: 89661-2G382
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.0 x 9.9 x 4.0 inches
- Condition: New
- SKU: 89661-2G382-84
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2005 Toyota Celica Submodels:
- GT, GTS | 4 Cyl 1.8 L GAS
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2005 Toyota Celica ECM
Part Number: 89661-20A30
$775.76 MSRP: $1136.89
You Save: $361.13 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 12.6 x 10.1 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89661-20A30
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2005 Toyota Celica Submodels:
- GT, GTS | 4 Cyl 1.8 L GAS
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2005 Toyota Celica ECM
Part Number: 89661-20A80
$804.36 MSRP: $1178.81
You Save: $374.45 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 12.6 x 9.9 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89661-20A80
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2005 Toyota Celica Submodels:
- GTS | 4 Cyl 1.8 L GAS
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2005 Toyota Celica ECM
Part Number: 89661-20A20
$711.54 MSRP: $1042.78
You Save: $331.24 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 12.6 x 10.0 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89661-20A20
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2005 Toyota Celica Submodels:
- GT, GTS | 4 Cyl 1.8 L GAS
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2005 Toyota Celica ECM
Part Number: 89661-20A70
$707.14 MSRP: $1036.32
You Save: $329.18 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.1 x 10.0 x 4.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89661-20A70
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2005 Toyota Celica Submodels:
- GTS | 4 Cyl 1.8 L GAS
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2005 Toyota Celica ECM
Part Number: 89661-20A11
$579.64 MSRP: $849.47
You Save: $269.83 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-20A10
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.0 x 10.3 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89661-20A11
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2005 Toyota Celica Submodels:
- GT | 4 Cyl 1.8 L GAS
View related parts
2005 Toyota Celica ECM
Part Number: 89661-20A01
$548.03 MSRP: $803.15
You Save: $255.12 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-20A00, 89661-2G381, 89661-2G380
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.1 x 10.1 x 4.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89661-20A01
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2005 Toyota Celica Submodels:
- GT | 4 Cyl 1.8 L GAS

2005 Toyota Celica Engine Control Module

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2005 Toyota Celica Engine Control Module Parts Q&A

Q: What are the guidelines and requirements for reprogramming the Engine Control Module on 2005 Toyota Celica?
A: Starting in 2001, Toyota/Scion and Lexus vehicles feature flash reprogrammable Powertrain Control Modules (PCM). Reprogramming should follow Technical Service Bulletins. Use validated tools like the Toyota/Lexus scantool or J2534 interfaces. The process requires specific software and equipment, and must be uninterrupted to avoid damaging the vehicle controller.

Related 2005 Toyota Celica Parts

Alternate Year Models

2004 Toyota Celica Engine Control Module