What are the steps involved in servicing the Engine Control Module (ECM) on Chevrolet Blazer?

Decisions regarding powertrain control module (PCM) service include replacing the pcm itself or executing electrically erasable programmable read-only memory (EEPROM) programming. Inspection of the pcm should occur before replacement to verify that a correct part is chosen. The operation of disconnecting power and removing or installing pcm connectors must be performed only when the ignition is off to protect the pcm's internal components. Surface inspection of pcm connectors must be followed by cleaning all debris while double-checking the presence of appropriate pcm module connector gaskets which act to stop contamination. First disconnect the negative Battery Cable before relocating the pcm retention bar along with its retainer to free the pcm from its mounting bracket and then disconnect the electrical connectors. Begin the installation by checking the service number on the replacement pcm matches the defective unit in order to proceed with replacement. Complete the electrical connector attachment by securing screws to 8 n.m (71 lb in) before placing the pcm retainer into bracket slots. After pulling out the retention bar install the negative Battery Cable. Programming the pcm should be performed at the end of the installation.

OEM Chevrolet Blazer Engine Control Module

Engine Control Computer

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19 Engine Control Modules found

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Chevrolet Blazer Control Module
Part Number: 88999179
$166.70 MSRP: $464.02
You Save: $297.32 (65%)
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Product Specifications
- Other Name: Module, Engine Control; Engine Control Module; Computer; ECM; Module, Emission Control System (Components, EGR Control, Eprom)
- Replaces: 16147060
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer ECM
Part Number: 12602801
$534.19 MSRP: $962.30
You Save: $428.11 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module, Powertrain Control (P59)
- Replaced by: 89017749
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Chevrolet Blazer | Base, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer ECM
Part Number: 12700116
$186.94 MSRP: $345.89
You Save: $158.95 (46%)
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Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu) E80 Service No Start.; Engine Control Module; Module, Emission Control System
- Replaces: 12669908, 12687467
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | Base, L, LT | 4 Cyl 2.5 L GAS
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Chevrolet Blazer Control Module
Part Number: 88999146
$133.95 MSRP: $268.24
You Save: $134.29 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM; Emission Control System (Air Injector Reactor Valves, ECM Components, EGR Valves)
- Replaces: 01227747, 1227747
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1991 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer ECM
Part Number: 88961143
$144.27 MSRP: $266.48
You Save: $122.21 (46%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly, Powertrain Control (Remanufacture); Engine Control Module; Module, Emission Control System(EGR Control); Module, Emission Control System
- Replaces: 16196396
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer PCM
Part Number: 19299227
$246.22 MSRP: $441.84
You Save: $195.62 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 89017739, 12586243
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Chevrolet Blazer | LS, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer PCM
Part Number: 12200411
$244.45 MSRP: $434.84
You Save: $190.39 (44%)
Ships in 1-2 Business Days
ADD TO CART
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:
- 2001-2002 Chevrolet Blazer | LS, LT, Trailblazer, Xtreme | 6 Cyl 4.3 L GAS
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Chevrolet Blazer ECM
Part Number: 12726508
$193.23 MSRP: $346.62
You Save: $153.39 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Module, Emission Control System
- Replaces: 12697793, 12689093
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2022 Chevrolet Blazer | LT, Premier | 4 Cyl 2.0 L GAS
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Chevrolet Blazer ECM
Part Number: 12725787
$193.23 MSRP: $346.62
You Save: $153.39 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Engine Control (W/O Calibration); Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet Blazer ECM
Part Number: 12725663
$229.77 MSRP: $466.68
You Save: $236.91 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Engine Control (W/2ND Mpu); Module, Emission Control System
- Replaces: 12683348, 12679078, 12659039, 12708794, 12698026, 12687296
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | Base, LT, Premier, RS | 6 Cyl 3.6 L GAS
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Chevrolet Blazer Control Module
Part Number: 16229684
Product Specifications
- Other Name: Module, Vehicle Control; Engine Control Module; PCM; ECM
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997 Chevrolet Blazer | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Module
Part Number: 16060836
Product Specifications
- Other Name: Eprom, Emission Control System; Ignition Control Module; Eprom, Emission Control System(ECM Components); Eprom, Emission Control System(EGR Valves)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer PCM
Part Number: 16244210
Product Specifications
- Other Name: Module, Vehicle Control; Engine Control Module; ECM; Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 Chevrolet Blazer | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Module
Part Number: 16157713
Product Specifications
- Other Name: Eprom, Emission Control System; Ignition Control Module; Eprom, Emission Control System(ECM Components)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
View related parts
Chevrolet Blazer PCM
Part Number: 12581565
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 89017733
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Chevrolet Blazer | LS, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer ECM
Part Number: 88999164
$134.48 MSRP: $238.66
You Save: $104.18 (44%)
Product Specifications
- Other Name: Module Assembly, Engine Control; Engine Control Module; Module, Emission Control System (ECM & EGR Components)
- Replaces: 16146299
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
View related parts
Chevrolet Blazer Control Module
Part Number: 9366810
$266.44 MSRP: $470.38
You Save: $203.94 (44%)
Product Specifications
- Other Name: Module, Vehicle Control; 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 Chevrolet Blazer | Base, LS, LT, Trailblazer | 6 Cyl 4.3 L GAS
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Chevrolet Blazer PCM
Part Number: 16263494
$341.63 MSRP: $610.42
You Save: $268.79 (45%)
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:
- 1999-2000 Chevrolet Blazer | Base, LS, LT, Trailblazer | 6 Cyl 4.3 L GAS
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Chevrolet Blazer PCM
Part Number: 16197427
$322.76 MSRP: $575.02
You Save: $252.26 (44%)
Product Specifications
- Other Name: Module, PCM (Remanufactured); Engine Control Module; ECM; Module, Emission Control System(EGR Control); Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | Base, LT | 6 Cyl 4.3 L GAS

Chevrolet Blazer Engine Control Module

Our website offers an extensive catalog of genuine Chevrolet Blazer Engine Control Module at unbeatable prices. Every OEM Chevrolet Blazer Engine Control Module comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

Chevrolet Blazer Engine Control Module Parts Questions & Experts Answers

ECM
12602801
Q: What are the steps involved in servicing the Engine Control Module (ECM) on Chevrolet Blazer?
A: Decisions regarding powertrain control module (PCM) service include replacing the pcm itself or executing electrically erasable programmable read-only memory (EEPROM) programming. Inspection of the pcm should occur before replacement to verify that a correct part is chosen. The operation of disconnecting power and removing or installing pcm connectors must be performed only when the ignition is off to protect the pcm's internal components. Surface inspection of pcm connectors must be followed by cleaning all debris while double-checking the presence of appropriate pcm module connector gaskets which act to stop contamination. First disconnect the negative Battery Cable before relocating the pcm retention bar along with its retainer to free the pcm from its mounting bracket and then disconnect the electrical connectors. Begin the installation by checking the service number on the replacement pcm matches the defective unit in order to proceed with replacement. Complete the electrical connector attachment by securing screws to 8 n.m (71 lb in) before placing the pcm retainer into bracket slots. After pulling out the retention bar install the negative Battery Cable. Programming the pcm should be performed at the end of the installation.