How to replace the Engine Control Module on GMC Sierra 3500?

A replacement of the powertrain control module (PCM) requires the Ignition Switch to be turned off in order to protect the internal components. Check the pcm connector gaskets for proper installation because they are essential to blocking contaminants. Clean all debris from the pcm connector areas. The new pcm needs programming as a key step before installation. A compatible scan tool should be used to obtain and save the engine oil life percentage before programming because an unprogrammed value defaults to 100% which requires an oil change at 5000 km (3,000 mi) from the last service. As a first step disconnect the negative Battery Cable and also remove the engine harness clip from the pcm cover when the vehicle features the allison transmission regular production option (M74). After releasing the pcm cover mounting tabs you can take out the cover itself. The pcm electrical connector bolts need to be loosened while the ignition is off to prevent connector damage when connecting or disconnecting the pcm to its connector. You should disconnect pcm electrical connectors before you release the spring latch and mounting tabs to remove the pcm. When installing the new pcm users should secure its mounting tabs while tightening the spring latch at the same time followed by electrical connector connection before securing the bolts with a torque of 8 n.m (71 lb in). The installation requires reconnecting the negative Battery Cable and applying pcm programming when a new unit was installed.

OEM GMC Sierra 3500 Engine Control Module

Engine Control Computer

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8 Engine Control Modules found

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GMC Sierra 3500 ECM Part Number: 15292913
$1098.11 MSRP: $1808.92
You Save: $710.81 (40%)
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Product Specifications
- Other Name: Module Assembly, Engine Control (Lly Service No-Start); Engine Control Module; Module, Emission Control System
- Replaces: 12244189
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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GMC Sierra 3500 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 GMC Sierra 3500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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GMC Sierra 3500 PCM Part Number: 19299227
$240.92 MSRP: $441.84
You Save: $200.92 (46%)
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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 GMC Sierra 3500 | Base, SLE, SLT, WT | 8 Cyl 8.1 L GAS
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GMC Sierra 3500 PCM Part Number: 12200411
$239.24 MSRP: $434.84
You Save: $195.60 (45%)
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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:
- 2001-2002 GMC Sierra 3500 | Base, SL, SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Sierra 3500 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:
- 2005-2006 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
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GMC Sierra 3500 ECM Part Number: 19260753
Product Specifications
- Other Name: Module Assembly, Engine Control; Engine Control Module; Module, Emission Control System
- Replaces: 12606126
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 GMC Sierra 3500 | SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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GMC Sierra 3500 ECM Part Number: 97780075
Product Specifications
- Other Name: Module Assembly, Engine Control (Remanufacture); Engine Control Module; Module, Emission Control System
- Replaces: 09388505, 12210729, 97780077, 9388505
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2004 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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GMC Sierra 3500 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 GMC Sierra 3500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS

GMC Sierra 3500 Engine Control Module

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GMC Sierra 3500 Engine Control Module Parts Questions & Experts Answers

ECM
15292913
Q: How to replace the Engine Control Module on GMC Sierra 3500?
A:
A replacement of the powertrain control module (PCM) requires the Ignition Switch to be turned off in order to protect the internal components. Check the pcm connector gaskets for proper installation because they are essential to blocking contaminants. Clean all debris from the pcm connector areas. The new pcm needs programming as a key step before installation. A compatible scan tool should be used to obtain and save the engine oil life percentage before programming because an unprogrammed value defaults to 100% which requires an oil change at 5000 km (3,000 mi) from the last service. As a first step disconnect the negative Battery Cable and also remove the engine harness clip from the pcm cover when the vehicle features the allison transmission regular production option (M74). After releasing the pcm cover mounting tabs you can take out the cover itself. The pcm electrical connector bolts need to be loosened while the ignition is off to prevent connector damage when connecting or disconnecting the pcm to its connector. You should disconnect pcm electrical connectors before you release the spring latch and mounting tabs to remove the pcm. When installing the new pcm users should secure its mounting tabs while tightening the spring latch at the same time followed by electrical connector connection before securing the bolts with a torque of 8 n.m (71 lb in). The installation requires reconnecting the negative Battery Cable and applying pcm programming when a new unit was installed.