Compatibility and specifications

This Engine Computers module suits 2004–2006 Cadillac SRX with the 4.6L Northstar V8 engine. Flashmasters lists service number 12576523 and sells one unit per order. Buyers should verify detailed compatibility beyond model years before installing the module. Confirm fitment details to avoid mismatches and wasted installation time.

Key specifications

• Brand: Flashmasters
• Service number: 12576523
• Fitment: 2004-2006 Cadillac SRX 4.6L
• Type: Engine Control Module (ECM/PCM/ECU)
• Programmed to VIN: true (seller states VIN programming)
• Price: 309.95 USD
• Instructions included: yes

Programming outcome

Flashmasters 12576523 provides VIN programming to match vehicle immobilizer. Product listings conflict about who performs the programming, so confirm seller procedures before purchase. Buyer must supply VIN and may require anti-theft relearn (module synchronization with immobilizer). A qualified shop with a compatible scan tool completes relearn steps quickly.

Installation and programming requirements

Installation requires VIN provision and a scan tool capable of relearn and clearing codes. The unit includes instructions, but no detailed installation procedure or warranty terms. Shops can perform anti-theft and crankshaft variation relearns to avoid code P0315. Expect to pay labor or use a dealer for proper ECM programming and relearn.

Relearn and tools

OBD-II scan tools enable correct ECU relearn and clear P0315 errors. Tools from Snap-on, Autel, and Bosch often include relearn procedures for GM ECMs. If you lack a scanner, a repair shop or dealer can complete relearn quickly.

Example scan tools that support GM relearns

• Snap-on MODIS or SOLUS
• Autel MaxiSys MS908
• Bosch KTS 590

Troubleshooting, reliability and purchase considerations

Buyers should expect possible code P0315 if they skip relearn after swapping ECM. That code indicates crankshaft variation mismatch and prevents proper engine timing detection. You should verify return policies and warranty, because product listings lack these details. Consider seller availability, same-day ping, and buy third-party protection if available.

Expected codes and protection

P0315 code indicates crankshaft variation mismatch. Third-party protection plan references Asurion; review coverage details in seller documents. Missing warranty, return policy, and core charge details increase buyer risk. Contact seller to confirm programming method before purchase.