
Chevrolet Cobalt BCM clone by Karman Auto is a precise bench-programming workflow for the 2005-2010 Chevrolet Cobalt. Specifically, we read your original failed module, write the data byte-for-byte onto a donor you supply, and then verify the copy before shipping both back. Moreover, your VIN, immobilizer seed, and factory trim coding are preserved exactly. However, you are responsible for sourcing a donor that carries the identical factory part number — we do not sell or swap modules.
Chevrolet Cobalt 2005-2010 BCM Clone Service — Overview
The Chevrolet Cobalt on the GM Delta platform (built at Lordstown Assembly) is one of the most common vehicles we see for BCM cloning, largely because the ignition switch and BCM subsystem were central to the 2014 GM recall. Its BCM couples the ignition-cylinder position, Passlock III immobilizer, and EPS (electric power steering) enable logic in a way that makes a failed BCM feel like a failed steering column.
What This Service Is (And Is Not)
This is a cloning service only. Karman Auto does not sell parts or donor modules. You ship us two BCMs: your original (failed) unit and a donor unit you have sourced with the exact same part number. We read the data from your original, write it byte-for-byte onto your donor, re-read the donor to verify the copy, and ship both modules back to you. The donor becomes a functional replacement for your original.
Common Reasons Chevrolet Cobalt Owners Replace This BCM
Cobalt BCM failure patterns: EPS (electric power steering) warning that will not clear, “Service Power Steering” message, intermittent no-crank with the key in Run, airbag lamp that illuminates only when driving over bumps (known wiring issue exposed by weak BCM internal power supply), and the notorious ignition-switch-related stall which on post-recall vehicles still leaves a Passlock III fault in the BCM.
Platform & Technical Notes
Platform: GM Delta. Module supplier: Delphi E37. Chip: Freescale 68HC12 with external Lear serial EEPROM. Communication: Class 2 serial data plus local LIN to the EPS module. Security: Passlock III. Programming tool: GM SPS/TIS2Web. The Cobalt’s EPS calibration is BCM-resident, not in the steering column, so a donor BCM must be cloned or the car loses power steering assist until dealer reprogramming.
Why Chevrolet Cobalt Owners Come to Us
We clone the Cobalt configuration — Base, LS, LT, SS, SS Supercharged (LSJ), SS Turbocharged (LNF) — along with EPS calibration, Passlock III seed, VIN, odometer, and all option coding. EPS and security behave identically to the original module.
Common Chevrolet Cobalt BCM Part Numbers
The BCM on the 2005-2010 Chevrolet Cobalt is commonly seen in the following part numbers. Your exact part number must match the donor you supply — mixing part numbers will not work even within the same platform family. Check the label on your original BCM before sourcing a donor.
157842391579881220814034209307102086857122694186227087692273892722797232259527941594561620911960228310612594901922696311158559062083789422709104
This is a common-numbers reference. If your original carries a number not on this list, that is fine — the requirement is simply that your donor carries the same number as your original.
Shipping Instructions
After you complete checkout, your order receipt will include the shipping address for Karman Auto. Please follow these steps:
- Remove your failed BCM from the vehicle following the factory service information for your 2005-2010 Chevrolet Cobalt.
- Source a donor BCM with the exact same part number as your original. We cannot substitute part numbers.
- Mark the original module “OLD” clearly with tape, a sticker, or a permanent marker. This tells us which module to read the data from.
- Print your order receipt and enclose it in the shipping box — the receipt contains the return address we will use to ship both modules back to you.
- Pack both modules (original + donor) in anti-static bubble wrap inside a sturdy box. Ship to the address shown on your receipt.
Turnaround
Typical bench time is 24-48 hours from the moment both modules arrive at our shop. Rush service is available on request — contact us before you ship.
How to Order
Add this Chevrolet Cobalt BCM clone service to your cart and complete checkout. Your receipt will include our shipping address. Ship us your marked original BCM plus a matching-part-number donor with the receipt enclosed. We clone, verify, and return both modules to you.
Related Services & References
Looking for module cloning on other makes? Browse our full module cloning catalog for ECU, cluster, airbag, and immobilizer services across GM, Ford, Chrysler, Volvo, and European platforms. For background on this specific platform, see the Chevrolet Cobalt platform reference. Additionally, if you’re unsure whether your exact part number is supported, contact us first with a photo of the label — we reply the same business day.
Warranty
1:1 Data Transfer Guarantee
Karman Auto guarantees a byte-for-byte 1:1 data transfer from your original BCM onto your supplied donor. We read the original, write the donor, and re-read the donor to verify the copy before shipping. This is the only warranty we offer. We do not warranty the donor hardware, installation, wiring, or any unrelated vehicle issue. You are responsible for sourcing a functional donor with the matching part number.
Common Chevrolet Cobalt (2005-2010) BCM failure symptoms
- Cobalt SS Supercharged variant: boost gauge wiring failure
- Power steering motor warning (BCM commands EPS module on Cobalt)
- Door lock cycling random (Delta-platform BCM fault)
- DRL stuck on or off — common 2005-2007 Cobalt
- Fault codes B1325, B2960, U1000, U0073, U0140
- “Service Theft System” warning
- Cobalt XFE variant: fuel economy display readout broken
- Trunk release inoperative
- Heated seats (LT/SS) cut off
- Power outlet cycling
What causes Chevrolet Cobalt (2005-2010) BCM module failure
Chevrolet Cobalt was built at Lordstown Assembly on the GM Delta platform — the platform replaced by the Cruze in 2011. Cobalt BCMs sit in the driver-side dash. Common failure: water intrusion from windshield seal degradation on 2005-2007 first-gen Cobalts (well-documented). Cobalt SS Supercharged variant has additional underhood thermal stress. EPS module pairing through BCM means BCM failure can also trigger power-steering warnings. Other: jump-start over-voltage, accident damage.
Chevrolet Cobalt (2005-2010) BCM clone — frequently asked questions
Can you clone a 2005-2010 Chevrolet Cobalt BCM?
Yes. Karman Auto clones every Cobalt BCM across LS, LT, SS, SS Supercharged, and XFE variants for 2005-2010. Both sedan and coupe body styles. 27 years of GM Delta-platform expertise.
Does Cobalt SS Supercharged use the same BCM as base Cobalt?
Same hardware, different SS-specific software (boost gauge interaction, supercharger fan logic). Clone preserves your SS coding exactly.
Will my Cobalt’s power steering work after the BCM clone?
Yes. EPS (Electric Power Steering) talks to BCM for activation. Clone preserves the EPS pairing so steering operates normally. If EPS warning persists after BCM clone, the EPS motor itself may need separate replacement.
How long does the Chevrolet Cobalt BCM clone take?
Typical bench turnaround 24-48 hours from when we receive both modules. USPS Priority shipping back same day.
What fault codes typically indicate a failed Cobalt BCM?
B1325 (BCM internal voltage), B2960 (security access), U1000 (Class 2 bus error), U0073 (CAN bus off), U0140 (Lost Comm BCM). DIC: “Service Theft System”.
What causes Chevrolet Cobalt BCM failure?
Top cause: water intrusion from windshield seal failure on 2005-2007 Cobalts. Internal capacitor aging on first-gen Delta-platform BCMs. Cobalt SS Supercharged variants add underhood thermal stress. Other: jump-start spikes, accident damage.
Will my Cobalt keyless entry fobs work after the BCM clone?
Yes. Fob pairing data is preserved byte-for-byte in the clone. No relearn needed.
Do I need a donor with exact same Cobalt part number?
Yes. Different trims (LS/LT/SS/SS Supercharged/XFE) have different BCM part numbers due to option coding. Verify before shipping.
Will the Cobalt instrument cluster need re-pairing?
No. IPC-BCM pairing data is preserved in the clone. Cluster boots normally on first start.
Can you clone a water-damaged Cobalt BCM?
Yes. Water damage from windshield seal failure is the #1 Cobalt BCM failure cause. EEPROM recovery at chip level even on bricked modules.
Does OnStar work on Cobalt after BCM clone?
Yes (if equipped). OnStar handshakes via VIN which we preserve exactly.
Will Cobalt XFE fuel economy display work after BCM clone?
Yes. XFE-specific fuel economy display coding is in the BCM EEPROM and preserved in the clone.
Does the BCM clone affect heated seat operation on Cobalt LT/SS?
No. Heated seat relay commands are preserved in the clone. Heated seats operate normally.
Is Chevrolet Cobalt BCM cloning legal?
Yes. Module cloning for repair is fully legal in all 50 states. VIN and mileage preserved exactly. BBB A+ accredited.
Why choose Karman Auto over a GM dealer for Cobalt BCM?
Cobalt was discontinued in 2010 with the Delta platform retirement. Dealer Tech 2 reflash on a used donor BCM costs $400-$800 plus the module ($250-$400). Karman Auto clones your donor for $249, same-day shipping. 27 years of GM Delta-platform expertise.

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