How to replace the Engine Control Module on 2005 Chevrolet Avalanche 1500?

In order to change the powertrain control module (PCM), it is important to have the ignition switch turned off. Take away debris on PCM connector and check gaskets. Enter engine oil life using a scan tool. Disassemble the negative battery cable, PCM cover and electrical connectors. Install the new PCM, screw it down and reconnect the battery.

OEM 2005 Chevrolet Avalanche 1500 Engine Control Module

Engine Control Computer

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2005 Chevrolet Avalanche 1500 PCM Part Number: 12583560
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 2005 Chevrolet Avalanche 1500 Submodels:
- Base, LS, LT, Z66, Z71 | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS

2005 Chevrolet Avalanche 1500 Engine Control Module

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2005 Chevrolet Avalanche 1500 Engine Control Module Parts and Q&A

Q: How to replace the Engine Control Module on 2005 Chevrolet Avalanche 1500?
A: In order to change the powertrain control module (PCM), it is important to have the ignition switch turned off. Take away debris on PCM connector and check gaskets. Enter engine oil life using a scan tool. Disassemble the negative battery cable, PCM cover and electrical connectors. Install the new PCM, screw it down and reconnect the battery.