How to replace the Engine Control Module (ECM) on 2004 Toyota Camry?

The replacement of the Engine Control Module (ECM) begins with terminating power at the battery negative terminal. Begin by disassembling the front door scuff plate on the right-hand side (RH) and the cowl side trim sub-assy on the RH. Additionally, remove instrument panel under cover sub-assy No.1 and instrument panel sub-assy lower from the vehicle. The next stage involves removing the ECM by disconnecting five ECM connectors and removing the 2 wire harness clamps as well as the 2 ECM nuts. The procedure begins with ECM bracket removal through screw removal of its 2 screws followed by a similar process to eliminate ECM bracket No.2. The installation of ECM bracket No.2 requires two screws while the ECM bracket gets fastened using the same two screws. Attach the 2 wire harness clamps, join all 5 ECM connectors, then tighten the 2 mounting nuts of the ECM with 5.5 N.m (56 kgf.cm, 49 in.lbf) torque. Reinstallation of instrument panel sub-assy lower and instrument panel under cover sub-assy No.1 completes the procedure followed by installation of cowl side trim sub-assy RH and front door scuff plate RH before reconnecting the battery negative terminal.

OEM 2004 Toyota Camry Engine Control Module

Engine Control Computer

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7 Engine Control Modules found

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2004 Toyota Camry ECM
Part Number: 89661-06A03
$1371.78 MSRP: $2010.36
You Save: $638.58 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.2 x 10.3 x 4.1 inches
- Condition: New
- SKU: 89661-06A03
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following 2004 Toyota Camry Submodels:
- Base, LE, SE, XLE | 4 Cyl 2.4 L GAS
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2004 Toyota Camry ECM
Part Number: 89661-33A11
$1016.49 MSRP: $1489.68
You Save: $473.19 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-33A10
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 13.4 x 10.2 x 4.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89661-33A11
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
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Fits the following 2004 Toyota Camry Submodels:
- LE, SE, XLE | 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
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2004 Toyota Camry ECM
Part Number: 89666-33421
$998.83 MSRP: $1463.80
You Save: $464.97 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: (J)
- Replaces: 89666-33420
- Part Name Code: 89661
- Item Weight: 2.20 Pounds
- Item Dimensions: 10.7 x 7.9 x 3.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89666-33421
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
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Fits the following 2004 Toyota Camry Submodels:
- LE, XLE | 6 Cyl 3.0 L GAS
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2004 Toyota Camry ECM
Part Number: 89666-06215
$919.27 MSRP: $1347.20
You Save: $427.93 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89666-06210, 89666-06214, 89666-06212, 89666-06211, 89666-06212-84
- Item Weight: 2.10 Pounds
- Condition: New
- SKU: 89666-06215
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following 2004 Toyota Camry Submodels:
- LE, XLE | 6 Cyl 3.0 L GAS
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2004 Toyota Camry ECM
Part Number: 89661-06A41
$869.85 MSRP: $1274.78
You Save: $404.93 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Manufacturer Note: PART NUMBER LABEL=89661-06A41
- Replaces: 89661-06A40
- 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: 89661-06A41
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
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Fits the following 2004 Toyota Camry Submodels:
- SE | 6 Cyl 3.3 L GAS
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2004 Toyota Camry ECM
Part Number: 89661-0X133
$576.46 MSRP: $844.80
You Save: $268.34 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-0X130, 89661-0X131
- Item Weight: 1.40 Pounds
- Item Dimensions: 10.1 x 7.7 x 3.4 inches
- Condition: New
- SKU: 89661-0X133
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
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Fits the following 2004 Toyota Camry Submodels:
- SE | 6 Cyl 3.3 L GAS
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2004 Toyota Camry ECM
Part Number: 89661-33781
$581.11 MSRP: $851.62
You Save: $270.51 (32%)
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Product Specifications
- Other Name: Computer, Engine Control; Engine Control Module
- Replaces: 89661-33780
- Item Weight: 2.20 Pounds
- Item Dimensions: 10.6 x 7.7 x 3.5 inches
- Condition: New
- SKU: 89661-33781
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2004 Toyota Camry Submodels:
- Base, LE, SE, XLE | 4 Cyl 2.4 L GAS

2004 Toyota Camry Engine Control Module

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2004 Toyota Camry Parts Questions & Experts Answers

Q: How to replace the Engine Control Module (ECM) on 2004 Toyota Camry?
A: The replacement of the Engine Control Module (ECM) begins with terminating power at the battery negative terminal. Begin by disassembling the front door scuff plate on the right-hand side (RH) and the cowl side trim sub-assy on the RH. Additionally, remove instrument panel under cover sub-assy No.1 and instrument panel sub-assy lower from the vehicle. The next stage involves removing the ECM by disconnecting five ECM connectors and removing the 2 wire harness clamps as well as the 2 ECM nuts. The procedure begins with ECM bracket removal through screw removal of its 2 screws followed by a similar process to eliminate ECM bracket No.2. The installation of ECM bracket No.2 requires two screws while the ECM bracket gets fastened using the same two screws. Attach the 2 wire harness clamps, join all 5 ECM connectors, then tighten the 2 mounting nuts of the ECM with 5.5 N.m (56 kgf.cm, 49 in.lbf) torque. Reinstallation of instrument panel sub-assy lower and instrument panel under cover sub-assy No.1 completes the procedure followed by installation of cowl side trim sub-assy RH and front door scuff plate RH before reconnecting the battery negative terminal.