How to replace the Engine Control Module (ECM) on Buick LeSabre?

The powertrain control module (PCM) replacement process starts with verifying the correct pcm component selection and fault detection. The first step should involve shutting off the ignition along with disconnecting the negative Battery Cable. You must detach two screws holding the upper and lower air cleaner assembly sections before you can eliminate the upper air cleaner housing assembly. You must avoid disconnecting pcm connectors before you remove the pcm along with its harness from the pcm housing. You will then disconnect the pcm connectors. To install the pcm connectors should be reconnected then secured at 8 n.m (71 lb in). Reinsert the pcm assembly with its harness into the pcm housing before installing the upper air cleaner housing assembly by using the two screws which should be tightened to 4 n.m (35 lb in). Install the intake duct onto its position and safely connect the negative Battery Cable. The newly installed pcm needs the service programming system (SPS) to program it after a 10-mile drive period before allowing secondary air pump functionality.

What is the purpose of the Service Programming System (SPS) in programming an Engine Control Module on Buick LeSabre?

A technician can use the service programming system (SPS) through the data link connector (DLC) to reprogram a control module by accessing the serial data circuit which scan tools also use for dtc retrieval and data display. The control modules contain electrically erasable programmable read only memory (EEPROM) to store learned values such as vehicle identification number (VIN) and crankshaft variation learned position and software/calibrations identification numbers and control module security information alongside flash read only memory that serves as a larger storage capacity replacement for programming purposes. The programming methods for the vehicle include remote programming through (Tech 2), pass thru programming through (Tech 2) and off-board remote programming through (Tech 2) and off-board programming adapter (OBPA) while off-board pass thru programming can also be done through (Tech 2) and (OBPA). It is essential to program the control module only if it needs replacement or if new software or calibration packages become available after checking that vehicle system voltage stays within 12 to 16 volts and without charging system errors or battery charger connections. The battery needs to be disabled and the vehicle must have an appropriate ignition position with proper secure connections for all tools to prevent disturbances during programming. After programming, the powertrain may operate differently, requiring the control module to re-learn values such as fuel trim correction, idle air control (IAC) learned position, and automatic transmission shift adapts, while additional service procedures may be necessary if a control module is replaced, including the crankshaft variation learn procedure, engine oil life reset procedure, idle learn procedure, inspection/maintenance complete system set procedure, vehicle theft deterrent password learn procedure, and throttle position (TP) sensor learn procedure.

OEM Buick LeSabre Engine Control Module

Engine Control Computer

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19 Engine Control Modules found

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Buick LeSabre Control Module Part Number: 16183247
$227.48 MSRP: $457.98
You Save: $230.50 (51%)
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Product Specifications
- Other Name: Module, PCM (Remanufactured); Engine Control Module; PCM; ECM; Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre EEC Module Part Number: 88999139
$116.59 MSRP: $217.18
You Save: $100.59 (47%)
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM
- Replaces: 01227153, 1227153
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986 Buick LeSabre | Custom, Limited | 6 Cyl 3.0 L GAS
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Buick LeSabre EEC Module Part Number: 88999198
$176.85 MSRP: $339.66
You Save: $162.81 (48%)
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 16198264
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1991 Buick LeSabre | Base, Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre Control Module Part Number: 88999178
$132.96 MSRP: $236.38
You Save: $103.42 (44%)
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; EEC Module; Prom Calibrator; ECM; Calibrator
- Replaces: 16141470
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1993 Buick LeSabre | Base, Custom, Limited, T-Type | 6 Cyl 3.8 L GAS
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Buick LeSabre Control Module Part Number: 88999100
$109.26 MSRP: $197.56
You Save: $88.30 (45%)
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 1225450, 01225450
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1990 Buick LeSabre | Collector's Edition, Custom, Estate Wagon, Limited | 8 Cyl 5.0 L GAS
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Buick LeSabre Crankshaft Sensor Part Number: 88963800
$153.69 MSRP: $275.77
You Save: $122.08 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly, Powertrain Control (Remanufacture) Requires Reprogramming; Crankshaft Position Sensor; Control Module; EEC Module; PCM; ECM; Module, Emission Control System
- Replaces: 16211539
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre PCM Part Number: 12209624
$319.15 MSRP: $597.04
You Save: $277.89 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2004 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre PCM Part Number: 12583827
$454.50 MSRP: $918.86
You Save: $464.36 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 89017736
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre Control Module Part Number: 9380717
Product Specifications
- Other Name: Module Assembly, Powertrain Control (Remanufacture) Requires Reprogramming; Engine Control Module; PCM; ECM; Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre Control Module Part Number: 9361735
Product Specifications
- Other Name: Module Assembly, Powertrain Control (Remanufacture) Requires Reprogramming; Engine Control Module; PCM; ECM; Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2000 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre Calpak Part Number: 16047428
Product Specifications
- Other Name: Calpak-ECM; Eprom, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986 Buick LeSabre | Custom, Limited | 6 Cyl 3.0 L GAS
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Buick LeSabre Calpak Part Number: 16033314
Product Specifications
- Other Name: Eprom; Engine Control Module; ECM
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1988 Buick LeSabre | Base, Custom, Limited, T-Type | 6 Cyl 3.8 L GAS
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Buick LeSabre Control Module Part Number: 88999158
$131.47 MSRP: $233.26
You Save: $101.79 (44%)
Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 01228746, 1228746
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1990 Buick LeSabre | Collector's Edition, Custom, Estate Wagon, Limited | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
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Buick LeSabre ECM Part Number: 88999145
$111.42 MSRP: $198.44
You Save: $87.02 (44%)
Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; Module, Emission Control System
- Replaces: 01227746, 1227746
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Buick LeSabre | Collector's Edition, Custom, Limited | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS
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Buick LeSabre Control Module Part Number: 16236757
Product Specifications
- Other Name: Module Assembly, Powertrain Control (Remanufacture) Requires Reprogramming; Engine Control Module; PCM; ECM; Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre Control Module Part Number: 16217058
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; PCM; ECM
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre Prom Calibrator Part Number: 16169588
Product Specifications
- Other Name: Eprom, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1996 Buick LeSabre | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick LeSabre EEC Module Part Number: 88999137
$118.47 MSRP: $210.80
You Save: $92.33 (44%)
Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; Computer; ECM; Module, Emission Control System
- Replaces: 01227148, 1227148
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1987 Buick LeSabre | Base, Custom, Limited, T-Type | 6 Cyl 3.8 L GAS
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Buick LeSabre Control Module Part Number: 88999101
$98.78 MSRP: $176.21
You Save: $77.43 (44%)
Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 01225500, 1225500
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Buick LeSabre | Collector's Edition, Custom, Limited | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS

Buick LeSabre Engine Control Module

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Buick LeSabre Engine Control Module (ECM) is one of the primary and significant parts of the Buick vehicles which depict reliability and performance. The LeSabre Engine Control Module, which operates as the engine's computer, is responsible for regulating the engine through the monitoring of sensors in order to control and modify the levels of fuel and air being supplied to the system. This helps in achieving the prime or rather proper spark ignition and makes the Buick LeSabre one of the efficient models in the market. The LeSabre's model compatible ECM is developed to work in the vehicles manufactured between 1959 and 2005 and is created for both new and remanufactured units of the car. Apart from optimized performance, the Buick LeSabre Engine Control Module has the immense benefit of improving the safety of the vehicle through proper control of the engine's response. Other features like the flexibility of the LeSabre Engine Control Module to changing driving conditions and the aspect of fuel efficiency give this product a competitive edge over others. Since it is one of the Buick's large cars, the Buick LeSabre has continued to gain popularity along with its tradition of toughness and inventiveness for which this car model is admired; the Engine Control Module plays a crucial role in it. The latter affects the Buick LeSabre Engine Control Module and, in so doing, complements the driving experience and enshrines the make in car history as a symbol of Buick's craft and innovation.

Buick LeSabre Engine Control Module Parts and Q&A

PCM
12583827
Q: How to replace the Engine Control Module (ECM) on Buick LeSabre?
A:
The powertrain control module (PCM) replacement process starts with verifying the correct pcm component selection and fault detection. The first step should involve shutting off the ignition along with disconnecting the negative Battery Cable. You must detach two screws holding the upper and lower air cleaner assembly sections before you can eliminate the upper air cleaner housing assembly. You must avoid disconnecting pcm connectors before you remove the pcm along with its harness from the pcm housing. You will then disconnect the pcm connectors. To install the pcm connectors should be reconnected then secured at 8 n.m (71 lb in). Reinsert the pcm assembly with its harness into the pcm housing before installing the upper air cleaner housing assembly by using the two screws which should be tightened to 4 n.m (35 lb in). Install the intake duct onto its position and safely connect the negative Battery Cable. The newly installed pcm needs the service programming system (SPS) to program it after a 10-mile drive period before allowing secondary air pump functionality.
PCM
12209624
Q: What is the purpose of the Service Programming System (SPS) in programming an Engine Control Module on Buick LeSabre?
A:
A technician can use the service programming system (SPS) through the data link connector (DLC) to reprogram a control module by accessing the serial data circuit which scan tools also use for dtc retrieval and data display. The control modules contain electrically erasable programmable read only memory (EEPROM) to store learned values such as vehicle identification number (VIN) and crankshaft variation learned position and software/calibrations identification numbers and control module security information alongside flash read only memory that serves as a larger storage capacity replacement for programming purposes. The programming methods for the vehicle include remote programming through (Tech 2), pass thru programming through (Tech 2) and off-board remote programming through (Tech 2) and off-board programming adapter (OBPA) while off-board pass thru programming can also be done through (Tech 2) and (OBPA). It is essential to program the control module only if it needs replacement or if new software or calibration packages become available after checking that vehicle system voltage stays within 12 to 16 volts and without charging system errors or battery charger connections. The battery needs to be disabled and the vehicle must have an appropriate ignition position with proper secure connections for all tools to prevent disturbances during programming. After programming, the powertrain may operate differently, requiring the control module to re-learn values such as fuel trim correction, idle air control (IAC) learned position, and automatic transmission shift adapts, while additional service procedures may be necessary if a control module is replaced, including the crankshaft variation learn procedure, engine oil life reset procedure, idle learn procedure, inspection/maintenance complete system set procedure, vehicle theft deterrent password learn procedure, and throttle position (TP) sensor learn procedure.