What is the purpose of the Electronic Control Module (ECM) in the Honda Prelude?

First of all, this is the vehicle's engine control computer also known as the Electronic Control Module (ECM). It controls the engine system in manual vehicles. On the other hand, when it combines with Transmission Control Module (TCM), it forms a Powertrain Control Module (PCM) that controls both the engine and shift functions of automatic vehicles. The PCM processes sensor data from sensors, and controls fuel supply, ignition timing, and emission system. When ECM fails, the system defaults to a pre-programmed mode which triggers the Malfunction Indicator Lamp. It is necessary to handle control units with care and ensure their proper grounding. To remove the ECM, disconnect the battery first, then locate it afterward, remove the cover and bolts, disconnect the wiring and finally lift it off by hand or use an electric hoist if necessary.

Genuine Honda Prelude Engine Control Module

Engine Control Computer

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80 Engine Control Modules found

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Honda Prelude Control Module, Engine
Part Number: 37820-P14-A10
$862.74 MSRP: $1244.94
You Save: $382.20 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P14-A11
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door SI | KA 5MT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P14-A12
$853.42 MSRP: $1231.48
You Save: $378.06 (31%)
ADD TO CART
Product Specifications
- Other Name: ECM
- Replaces: 37820-P14-A12RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1994-1995 Honda Prelude | 2 Door SI | KA 5MT, KL 5MT
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Honda Prelude Control Module, Engine
Part Number: 37820-PK2-695
$916.28 MSRP: $1322.20
You Save: $405.92 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-PK2-L10
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1989 Honda Prelude | 2 Door 2.0SI | KL 4AT
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Honda Prelude Control Module, Engine
Part Number: 37820-PK3-A00
$699.20 MSRP: $1008.95
You Save: $309.75 (31%)
ADD TO CART
Product Specifications
- Replaces: 37820-PK3-A00RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1990-1991 Honda Prelude | 2 Door 2.05SI | KA 5MT
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Honda Prelude Control Module, Engine
Part Number: 37820-P14-L61
$853.42 MSRP: $1231.48
You Save: $378.06 (31%)
ADD TO CART
Product Specifications
- Other Name: ECM
- Replaces: 37820-P14-L60, 37820-P14-L61RM, 37820-P14-L60RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992-1993 Honda Prelude | 2 Door SI | KL 4AT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-PK3-A10
$853.42 MSRP: $1231.48
You Save: $378.06 (31%)
ADD TO CART
Product Specifications
- Replaces: 37820-PK3-A10RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1990-1991 Honda Prelude | 2 Door 2.05SI | KA 4AT
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Honda Prelude Control Module, Engine
Part Number: 37820-P13-A10
$862.74 MSRP: $1244.94
You Save: $382.20 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P13-A11
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1993 Honda Prelude | 2 Door Sivtec | KA 5MT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P14-L50
$862.74 MSRP: $1244.94
You Save: $382.20 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P14-L51
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door SI | KL 4AT
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Honda Prelude Control Module, Engine
Part Number: 37700-PK1-661
$396.49 MSRP: $572.13
You Save: $175.64 (31%)
ADD TO CART
Product Specifications
- Replaces: 37700-PK1-661RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1990 Honda Prelude | 2 Door 2.0S | KA 5MT
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Honda Prelude Control Module, Engine
Part Number: 37820-P5M-A52
$754.98 MSRP: $1089.43
You Save: $334.45 (31%)
ADD TO CART
Product Specifications
- Other Name: ECM
- Replaces: 37820-P5M-A51, 37820-P5M-A52RM, 37820-P5M-A51RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1997 Honda Prelude | 2 Door Base | KA 4AT
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Honda Prelude Control Module, Engine
Part Number: 37820-P5M-L52
$754.98 MSRP: $1089.43
You Save: $334.45 (31%)
ADD TO CART
Product Specifications
- Other Name: ECM
- Replaces: 37820-P5M-L51RM, 37820-P5M-L52RM, 37820-P5M-L51
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1997 Honda Prelude | 2 Door Base | KL 4AT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P5P-A02
$754.98 MSRP: $1089.43
You Save: $334.45 (31%)
ADD TO CART
Product Specifications
- Other Name: ECM
- Replaces: 37820-P5P-A02RM, 37820-P5P-A01RM, 37820-P5P-A01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1997 Honda Prelude | 2 Door TYPESH | KA 5MT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P12-A00
$793.00 MSRP: $1144.30
You Save: $351.30 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P12-A01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door S | KA 5MT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P12-A50
$793.00 MSRP: $1144.30
You Save: $351.30 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P12-A51
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door S | KA 4AT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P14-A63
$837.11 MSRP: $1207.95
You Save: $370.84 (31%)
ADD TO CART
Product Specifications
- Other Name: ECM
- Replaces: 37820-P14-A63RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1996 Honda Prelude | 2 Door SI | KA 4AT, KL 4AT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P14-A51
$853.42 MSRP: $1231.48
You Save: $378.06 (31%)
ADD TO CART
Product Specifications
- Replaces: 37820-P14-A51RM, 37820-P14-A50, 37820-P14-A50RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992-1993 Honda Prelude | 2 Door SI | KA 4AT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P12-L50
$862.74 MSRP: $1244.94
You Save: $382.20 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P12-L51
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door S | KL 4AT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P13-L10
$862.74 MSRP: $1244.94
You Save: $382.20 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P13-L12
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1993 Honda Prelude | 2 Door Sivtec | KL 5MT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P13-L11
$862.74 MSRP: $1244.94
You Save: $382.20 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P13-L12
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1994 Honda Prelude | 2 Door Sivtec | KL 5MT
View related parts
Honda Prelude Control Module, Engine
Part Number: 37820-P14-A00
$862.74 MSRP: $1244.94
You Save: $382.20 (31%)
ADD TO CART
Product Specifications
- Replaced by: 37820-P14-A01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door SI | KA 5MT

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Honda Prelude Engine Control Module Parts Questions & Experts Answers

Control Module, Engine
37820-P14-A63
Q: What is the purpose of the Electronic Control Module (ECM) in the Honda Prelude?
A: First of all, this is the vehicle's engine control computer also known as the Electronic Control Module (ECM). It controls the engine system in manual vehicles. On the other hand, when it combines with Transmission Control Module (TCM), it forms a Powertrain Control Module (PCM) that controls both the engine and shift functions of automatic vehicles. The PCM processes sensor data from sensors, and controls fuel supply, ignition timing, and emission system. When ECM fails, the system defaults to a pre-programmed mode which triggers the Malfunction Indicator Lamp. It is necessary to handle control units with care and ensure their proper grounding. To remove the ECM, disconnect the battery first, then locate it afterward, remove the cover and bolts, disconnect the wiring and finally lift it off by hand or use an electric hoist if necessary.