Is Your Dodge Caliber, Jeep Compass, or Patriot Acting Up?
If you’re dealing with a persistent check engine light, erratic engine behavior, a no-start condition, or bizarre communication errors, the problem often points directly to the vehicle’s brain: the Engine Control Module (ECM). Over my 20+ years turning wrenches and diagnosing these exact platforms, I’ve seen countless owners waste money replacing perfectly good sensors when the ECM itself was the root cause. This module is the central command for your engine, and when it fails, it can create a cascade of confusing symptoms.
Common Symptoms of a Failing ECM:
- โ Unexplained Check Engine Light (CEL) that won’t clear.
- โ Vehicle refuses to start or cranks but won’t turn over.
- โ Poor fuel economy and rough idling.
- โ Stalling, hesitation, or misfires during acceleration.
- โ Communication error codes with your scan tool (U-codes).
- โ Automatic transmission shifting problems.
A Real-World Diagnostic Story
“A customer’s 2008 Caliber came into the shop last month with the check engine light on and a whole list of codes for the throttle position sensor, MAP sensor, and EGR valve. The owner had already replaced the throttle body with no luck. Instead of just throwing more parts at it, we checked the 5-volt reference signal at one of the sensors and found it was dead. This is a classic sign of internal failure in the ECM’s power supply circuit. We installed one of our pre-programmed modules, and all the codes vanished instantly. The car ran perfectly. This simple check saved the customer hundreds in unnecessary parts and labor.”
Plug-and-Play Installation: No Dealer Visit Required
The biggest headache with replacing an ECM is the expensive and time-consuming programming required at a dealership. We eliminate that completely. This 2007-2010 Caliber Engine Computer arrives at your door fully programmed to your vehicle’s specific VIN and mileage. It’s a true plug-and-play solution, designed to get you back on the road with minimal downtime and basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the ECM: On the Caliber, Compass, and Patriot, the ECM is typically located in the engine bay, often near the battery or firewall.
- Disconnect Connectors: Carefully unplug the electrical harnesses from the old module. Inspect the connectors for any corrosion or bent pins and clean them if necessary.
- Remove the Old Module: Unbolt the faulty ECM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed ECM and securely reconnect the electrical harnesses.
- Reconnect Battery: Reattach the negative battery terminal. The vehicle is now ready to start.
Guaranteed Compatibility and Fitment
This engine computer is a direct-fit replacement for a wide range of vehicles, ensuring a perfect match for your repair. It is compatible with the following models and part numbers:
Vehicle Fitment:
- 2007-2008 Dodge Caliber (All Engines)
- 2009 Dodge Caliber (1.8L, 2.0L Gasoline, 2.4L Engine Opt ED3)
- 2010 Dodge Caliber (2.0L, 2.4L)
- 2007-2010 Jeep Compass
- 2007-2010 Jeep Patriot
Compatible Part Numbers:
This unit replaces an extensive list of original part numbers, including: 05150471AA, 05150523AA, 68043260AA, 68043260AB, 04692101AD, 04692101AE, 04692101AF, 68043260AC, 68043260AD, 68043261AC, 68043261AA, 68043261AB, 68070011AA, 68071022AA, 05033359AJ, 05187817AF, 68000107AF, 68026147AA, 68026147AC, 68028201AA, 68028201AC, 68028205AB, 68044228AA, and more. Ordering this module ensures you get the correct, updated hardware and software for your vehicle.