• Fried Coil Drivers: Transistors melt inside, causing permanent, severe engine misfires (P2302–P2305). You must replace the ignition coil and ECU together.
• Voltage Regulator Failure: The internal alternator controller dies, stopping the battery from charging (P0622). Replacing the alternator won't fix it.
• Cracked Solder Joints: Internal processor joints snap from engine heat, causing a complete "No Crank / No Start" and a U0100 no-communication code.
• Harness Chafing: Sharp metal engine brackets rub through the external wiring loom, shorting out circuits and frying the computer's motherboard.

• Dodge: 2011 Dodge Dakota (3.7L), 2011 Dodge Durango (3.7L), and 2011 Dodge Nitro (3.7L).
• Jeep: 2011 Jeep Liberty (3.7L) (alongside your 2011 Wrangler 3.8L)

The NGC4A ECU uses the Freescale (Motorola) MPC5554 microcontroller unit (MCU)