What does the service of the engine control module (ECM) typically involve on Chevrolet Express 1500?

Service operations on the powertrain control module (PCM) usually include pcm substitution or eeprom electrical erasable programmable read-only memory programming. Inspection of the pcm happens first to confirm the right part will be used for replacement. Before installation of the new service pcm confirm the diagnosis of the faulty unit then proceed with the replacement. You should switch off the ignition before working with pcm connectors because this prevents internal damage when disconnecting or reconnecting power. The pcm connector should have all debris removed thoroughly and connector gaskets need to be checked for proper installation because these gaskets protect against contaminant entry. Programming of the new pcm forms a necessary step in the replacement process. Your first step should be to use a diagnostic tool for retrieving oil life percentage data since non-programming the replacement module will set engine oil to its maximum value which requires a change at 5,000 km (3,000 mi) from the prior service. Disconnection of both the negative Battery Cable and pcm harness connectors must happen while maintaining no contact with connector pins and soldered components to stop electrostatic discharge (ESD) damage. Before removing the pcm from its mounting tray users should press the spring latch then lift it upwards. After that users should take it out of the engine compartment. Return the pcm to its mounting tray by fastening the spring mechanism before connecting all connectors and tightening the fasteners to 8 n.m (71 lb in). The last step includes reconnecting the negative Battery Cable followed by programming the pcm if it is brand new.

OEM Chevrolet Express 1500 Engine Control Module

Engine Control Computer

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11 Engine Control Modules found

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Chevrolet Express 1500 Knock Sensor Part Number: 12612397
$316.33 MSRP: $642.48
You Save: $326.15 (51%)
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Product Specifications
- Other Name: Module Assembly, Engine Control (W/2ND Mpu); Engine Control Module; ECM; Module, Emission Control System
- Replaces: 12597125
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2009 Chevrolet Express 1500 | Base | 6 Cyl 4.3 L GAS
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Chevrolet Express 1500 ECM Part Number: 12635043
$213.69 MSRP: $434.02
You Save: $220.33 (51%)
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Product Specifications
- Other Name: Module, Emission Control System; Engine Control Module
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2014 Chevrolet Express 1500 | Base | 6 Cyl 4.3 L GAS
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Chevrolet Express 1500 PCM Part Number: 12633238
$245.01 MSRP: $496.56
You Save: $251.55 (51%)
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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:
- 2010-2014 Chevrolet Express 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX
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Chevrolet Express 1500 ECM Part Number: 12625455
$232.61 MSRP: $424.70
You Save: $192.09 (46%)
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Product Specifications
- Other Name: Module, Engine Control (W/2ND Mpu); Engine Control Module; Module, Emission Control System
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009 Chevrolet Express 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 PCM Part Number: 12612384
$261.01 MSRP: $488.26
You Save: $227.25 (47%)
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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:
- 2008-2009 Chevrolet Express 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 ECM Part Number: 12602801
$534.19 MSRP: $962.30
You Save: $428.11 (45%)
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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:
- 2005-2007 Chevrolet Express 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 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 Express 1500 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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Chevrolet Express 1500 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 Express 1500 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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Chevrolet Express 1500 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 Express 1500 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 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 Chevrolet Express 1500 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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Chevrolet Express 1500 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:
- 1999-2002 Chevrolet Express 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS

Chevrolet Express 1500 Engine Control Module

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Chevrolet Express 1500 Engine Control Module Parts and Q&A

ECM
12602801
Q: What does the service of the engine control module (ECM) typically involve on Chevrolet Express 1500?
A:
Service operations on the powertrain control module (PCM) usually include pcm substitution or eeprom electrical erasable programmable read-only memory programming. Inspection of the pcm happens first to confirm the right part will be used for replacement. Before installation of the new service pcm confirm the diagnosis of the faulty unit then proceed with the replacement. You should switch off the ignition before working with pcm connectors because this prevents internal damage when disconnecting or reconnecting power. The pcm connector should have all debris removed thoroughly and connector gaskets need to be checked for proper installation because these gaskets protect against contaminant entry. Programming of the new pcm forms a necessary step in the replacement process. Your first step should be to use a diagnostic tool for retrieving oil life percentage data since non-programming the replacement module will set engine oil to its maximum value which requires a change at 5,000 km (3,000 mi) from the prior service. Disconnection of both the negative Battery Cable and pcm harness connectors must happen while maintaining no contact with connector pins and soldered components to stop electrostatic discharge (ESD) damage. Before removing the pcm from its mounting tray users should press the spring latch then lift it upwards. After that users should take it out of the engine compartment. Return the pcm to its mounting tray by fastening the spring mechanism before connecting all connectors and tightening the fasteners to 8 n.m (71 lb in). The last step includes reconnecting the negative Battery Cable followed by programming the pcm if it is brand new.