How to service the Engine Control Module (ECM) on 2004 Chevrolet Silverado 1500?

Replacement or programming of the electrically erasable programmable read-only memory (EEPROM) stands as the service method for the powertrain control module (PCM). Check the part compatibility before disassembling the system. Switching off the ignition prevents pcm internal damage when working with power connections or disconnections. Start the pcm service by disconnecting the negative Battery Cable after which you should release the mounting tabs from the pcm cover and then remove the cover. The two pcm electrical connector bolts should be loosened while disconnecting the electrical connectors followed by releasing the spring latch and mounting tabs to take out the pcm. You should engage the mounting tabs of the new pcm then lock the spring latch followed by connecting electrical connectors before torquing the bolts to 8 n.m (71 lb in). Fitting the pcm cover requires proper engagement of the mounting tabs. A new pcm needs programming through the service programming system followed by performing the crankshaft position (CKP) system variation learn procedure. If necessary, reset the engine oil life monitor.

OEM 2004 Chevrolet Silverado 1500 Engine Control Module

Engine Control Computer

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2004 Chevrolet Silverado 1500 PCM
Part Number: 19299227
$246.22 MSRP: $441.84
You Save: $195.62 (45%)
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Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 89017739, 12586243
- Item Weight: 4.40 Pounds
- Item Dimensions: 9.2 x 4.2 x 12.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19299227
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2004 Chevrolet Silverado 1500 Submodels:
- Base, LS, LT, WT | 6 Cyl 4.3 L GAS
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2004 Chevrolet Silverado 1500 PCM
Part Number: 12583560
$271.45 MSRP: $498.32
You Save: $226.87 (46%)
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 89017737
- Item Weight: 4.10 Pounds
- Item Dimensions: 8.2 x 4.0 x 10.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12583560
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Silverado 1500 Submodels:
- Base, Hybrid, LS, LT, SS, WT, Z71 Off-Road | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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2004 Chevrolet Silverado 1500 PCM
Part Number: 12581565
Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module; ECM
- Replaces: 89017733
- Item Weight: 4.40 Pounds
- Item Dimensions: 9.2 x 4.2 x 12.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12581565
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Silverado 1500 Submodels:
- Base, LS, LT, SS, WT, Z71 Off-Road | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS

2004 Chevrolet Silverado 1500 Engine Control Module

With a comprehensive array of OEM 2004 Chevrolet Silverado 1500 Engine Control Module, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2004 Chevrolet Silverado 1500 Engine Control Module are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2004 Chevrolet Silverado 1500 Parts Questions & Experts Answers

Q: How to service the Engine Control Module (ECM) on 2004 Chevrolet Silverado 1500?
A: Replacement or programming of the electrically erasable programmable read-only memory (EEPROM) stands as the service method for the powertrain control module (PCM). Check the part compatibility before disassembling the system. Switching off the ignition prevents pcm internal damage when working with power connections or disconnections. Start the pcm service by disconnecting the negative Battery Cable after which you should release the mounting tabs from the pcm cover and then remove the cover. The two pcm electrical connector bolts should be loosened while disconnecting the electrical connectors followed by releasing the spring latch and mounting tabs to take out the pcm. You should engage the mounting tabs of the new pcm then lock the spring latch followed by connecting electrical connectors before torquing the bolts to 8 n.m (71 lb in). Fitting the pcm cover requires proper engagement of the mounting tabs. A new pcm needs programming through the service programming system followed by performing the crankshaft position (CKP) system variation learn procedure. If necessary, reset the engine oil life monitor.