Restore Peak Performance to Your Isuzu Truck
Is your 2008 Isuzu I-370 suffering from frustrating and unpredictable engine problems? A faulty Engine Control Module (ECM) is often the culprit behind issues that can leave you stranded. As the central computer of your vehicle, the ECM manages everything from fuel injection and ignition timing to transmission shifts and emissions control. When it fails, the symptoms can range from a simple check engine light to a complete no-start condition. This replacement ECM is the reliable, straightforward solution to get your truck running smoothly again.
This isn’t just a part in a box; it’s a complete service. We take the guesswork and high dealership costs out of the equation. Before we ship your module, our experienced technicians will program it with the latest GM-certified software updates, specifically matched to your truck’s unique Vehicle Identification Number (VIN). This ensures seamless communication between the new ECM and all other vehicle systems, restoring the original factory performance and efficiency your Isuzu was designed to have.
Case Study: A Tricky Diagnosis
A customer brought in a 2008 GMC Canyon (a sister truck to the I-370) with a persistent P0601 ‘Internal Control Module Memory Check Sum Error’ code. The truck would randomly stall at traffic lights and had a harsh, erratic idle. They had already replaced the spark plugs and an O2 sensor with no luck. After confirming power and ground to the ECM were solid, we knew the internal processor was failing. Swapping in one of our VIN-programmed modules solved the problem instantly. The customer was back on the road in under an hour, avoiding a costly and time-consuming trip to the dealership.
Is Your Truck Showing These Symptoms?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that the brain of your engine needs attention. In my 20+ years of diagnostics, these are the most common signs I’ve seen.
- âś” Check Engine Light is illuminated with communication codes (like U0100) or internal processor codes (P0601, P0606).
- âś” Engine cranks but refuses to start.
- âś” Noticeable decrease in fuel economy.
- âś” Rough or inconsistent idling and stalling.
- âś” Hesitation or stumbling during acceleration.
- âś” Transmission shifting issues or getting stuck in gear.
- âś” Seemingly unrelated warning lights appearing on the dash.
A Straightforward Guide to Installation
Replacing the 2008 Isuzu I-370 ECM is a manageable job for a DIYer with basic tools. The module is located on the right-hand (passenger side) firewall in the engine bay.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes for the system to fully discharge.
- Locate the ECM: Open the hood and find the ECM mounted to the firewall on the passenger side.
- Disconnect Wiring: Carefully release the locking tabs on the electrical connectors and pull them straight out from the module. Never force them. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the mounting hardware that secures the old ECM to the firewall. Set the old unit aside.
- Install the New Module: Mount your new, pre-programmed ECM in the same location and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harnesses back into the new ECM until they click into place. Reconnect the negative battery terminal.
- Final Steps: Your vehicle may require a security relearn procedure, which can typically be done by turning the key to the ‘ON’ position for 10-15 minutes. Start the engine and let it idle to confirm the repair is successful.
Verified Vehicle Compatibility
This ECM, part number 12590032, is a direct replacement for a wide range of General Motors vehicles. It is interchangeable with service numbers 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. While this listing is for a 2008 Isuzu I-370 ECM, please verify your specific part number or consult the extensive fitment list below to ensure compatibility with your car, truck, or SUV.
COLORADO 08 Electronic Control Module; (RH firewall)
ENVOY 07-08 Electronic Control Module; 5.3L (LH engine)
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 19210737
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
XLR 09 Electronic Control Module; (RH front engine compartment), ID 12607096
AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/hybrid
DTS 06 Electronic Control Module
DEVILLE 05 Electronic Control Module; (LH engine compartment), ID 12590032
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12605843
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
LACROSSE 08-09 Electronic Control Module; (lower air cleaner housing), 5.3L
STS 06 Electronic Control Module; (LH frame rail), 4.4L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12636660
UPLANDER 09 Electronic Control Module; (LH engine compartment), (3.9L)
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 19210737
SAAB 9-7X 07 Electronic Control Module; (LH engine), 8 cylinder
TRAILBLAZER 07 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 19210737
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 12607096
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
RAINIER 07 Electronic Control Module; (LH engine), 5.3L
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 12607096
CTS 06 Electronic Control Module; (RH engine compartment), V-Series, ID 12603530
STS 08 Electronic Control Module; (LH frame rail), 4.6L
G6 06 Electronic Control Module; (LH front engine compartment), ID 12603530
G6 08 Electronic Control Module; (LH front engine compartment), 3.6L
ION 06 Electronic Control Module; 2.4L (opt LE5)
MALIBU 06 Electronic Control Module; 3.9L
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/hybrid
RELAY 06 Electronic Control Module; (LH engine compartment), 3.9L
VUE 08-09 Electronic Control Module; 2.4L, VIN Z (8th digit, opt LAT)
OUTLOOK 08 Electronic Control Module; (behind fan shroud)
SOLSTICE 06 Electronic Control Module; (LH front frame rail)
VUE 08 Electronic Control Module; 3.6L
VUE 09 Electronic Control Module; 3.6L, VIN 7 (8th digit, opt LY7)
ACADIA 07-08 Electronic Control Module; (behind fan shroud), ID 12607096 (ECM)
AURA 08-09 Electronic Control Module; (RH firewall), 3.6L
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 19210737
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12603530
GRAND PRIX 08 Electronic Control Module; (lower air cleaner box), 5.3L
HHR 06 Electronic Control Module; (LH rear engine compartment), 2.4L
STS 08 Electronic Control Module; (LH frame rail), 4.4L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12590032
ISUZU I-290 08 Electronic Control Module; (RH firewall)
LUCERNE 06 Electronic Control Module; (lower part of air cleaner box), 4.6L
MALIBU 09-10 Electronic Control Module; 2.4L, w/hybrid
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 19210737
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
MONTANA 06 Electronic Control Module; (LH engine compartment), (SV6), 3.9L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 19210737
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12636660
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12602044
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12607096
TRAILBLAZER 09 Electronic Control Module; (LH engine), 4.2L
CANYON 08 Electronic Control Module; (RH firewall)
COBALT 06 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B, 8th digit, 4-146)
ISUZU I-370 08 Electronic Control Module; (RH firewall)
MALIBU 09 Electronic Control Module; 3.6L
SRX 08 Electronic Control Module; (LH engine compartment), (4.6L)
SAAB 9-7X 08 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
IMPALA 08-09 Electronic Control Module; (lower part of air cleaner box), 5.3L
XLR 06 Electronic Control Module; (RH front engine compartment), 4.4L
XLR 08 Electronic Control Module; (RH front engine compartment)
ENVOY 09 Electronic Control Module; (LH engine), 4.2L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12618163
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 19210737
MONTANA 08-09 Electronic Control Module; (LH engine compartment)
PURSUIT 06 Electronic Control Module; (LH front engine compartment), 2.4L
VUE 10 Electronic Control Module; 3.6L
ACADIA 08 Electronic Control Module; (behind fan shroud), ID 19210737 (PCM)
DTS 08 Electronic Control Module
TERRAZA 06 Electronic Control Module; (LH engine compartment), 3.9L
TRAILBLAZER 07 Electronic Control Module; (LH engine), 6.0L
SAAB 9-7X 08 Electronic Control Module; (LH engine), 6.0L
HUMMER H3 08 Electronic Control Module; (RH firewall)
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 3.6L
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 12607096
UPLANDER 06 Electronic Control Module; (LH engine compartment), 3.9L
Why do you need my VIN?
Why do you need my VIN?
We require your Vehicle Identification Number (VIN) to program the Engine Control Module with the exact software and calibrations for your specific vehicle. This ensures it works correctly with your engine, transmission, and options package, preventing compatibility issues and error codes.
Is this a plug-and-play part?
Why do you need my VIN?
We require your Vehicle Identification Number (VIN) to program the Engine Control Module with the exact software and calibrations for your specific vehicle. This ensures it works correctly with your engine, transmission, and options package, preventing compatibility issues and error codes.
Will this fix my check engine light?
Why do you need my VIN?
We require your Vehicle Identification Number (VIN) to program the Engine Control Module with the exact software and calibrations for your specific vehicle. This ensures it works correctly with your engine, transmission, and options package, preventing compatibility issues and error codes.
How do I find my original part number?
Why do you need my VIN?
We require your Vehicle Identification Number (VIN) to program the Engine Control Module with the exact software and calibrations for your specific vehicle. This ensures it works correctly with your engine, transmission, and options package, preventing compatibility issues and error codes.