Ford Fiesta MK7 DXXG ECU 1.0 i 0998 cc Petrol SFJA 2013 - 2017 5 MTM 5 Door Hatchback DXXGAKDDB (B299)

Ford Fiesta MK7 DXXG ZETEC EURO 5 63 REG 98.6bph Engine Control Unit Ecu E1BA-12B684-AA:RME1BA-12A650-AA:F1B1-12A650-AMB:DZL7C:0261S12486:0 261 S12 486:1349 0438:1039S80732:65813490438160112 1.0 i 0998 cc SFJA 5 Speed Manual DXXGAKDDB (B299) 2013,2014,2015,2016,2017 Petrol Mark7 ZETEC MK7 FL EURO 5 63 REG 98.6bph

Additional Info

1. ECU Overview

ECU Part Numbers:

• E1BA-12B684-AA / RME1BA-12A650-AA / F1B1-12A650-AMB
• Bosch Number: 0261S12486 (0 261 S12 486)
• Software Version: 1039S80732
• Engine: 1.0L EcoBoost SFJA (998cc, 98.6 bhp)
• Transmission: 5-Speed Manual
• Vehicle Model: Ford Fiesta MK7 (2013–2017)
• Fuel Type: Petrol
• Emission Standard: Euro 5

ECU Functions:

The Engine Control Unit (ECU) manages critical engine and vehicle operations:

1. Direct Fuel Injection & Turbocharger Control

   • Adjusts fuel injection timing and pressure for efficiency.
   • Controls the wastegate and boost pressure.

2. Variable Valve Timing (VVT) Management

   • Controls the Twin-independent Variable Cam Timing (Ti-VCT) system.

3. Throttle & Idle Control

   • Electronically regulates throttle opening for smooth acceleration.

4. Cooling System Regulation

   • Adjusts thermostat and coolant flow for optimal temperature.

5. Emission System Management

   • Monitors Oxygen (O2) sensors, Catalytic Converter (CAT), and EGR system.

6. Engine Start/Stop System

   • Manages idle stop/start functionality to improve fuel economy.

7. Turbo Wastegate & Intercooler Control

   • Ensures optimal boost levels without over-boost.

8. OBD-II Diagnostics & Fault Storage

   • Monitors sensor data and stores Diagnostic Trouble Codes (DTCs).

9. Communication with Other Modules (CAN Bus)

   • Interfaces with ABS, transmission, immobilizer, and powertrain control module.

2. ECU Installation Process

Pre-Installation Precautions

• Disconnect the Battery before handling the ECU to avoid damage.
• Ensure ECU Compatibility by checking part numbers.
• Use Anti-Static Protection (ESD wrist strap) to prevent static discharge.

Installation Steps

1. Locate the ECU:

   • Usually found behind the glove box or under the engine bay fuse box.

2. Remove the Old ECU:

   • Unclip the ECU wiring harness connectors carefully.
   • Remove mounting screws and brackets.

3. Install the New ECU:

   • Fit the ECU in its original position.
   • Securely reconnect the wiring harness connectors.

4. Reconnect the Battery and perform ECU programming & immobilizer sync.

5. Perform a System Check:

   • Use Ford IDS/FDRS software or OBD-II scanner to verify operation.

3. Safety Precautions

• Avoid Water & Heat Exposure – ECU damage can occur from moisture or excessive heat.
• Check Wiring Connections – Loose connections may cause engine misfire or no start.
• Use Genuine Software for Programming – Ford IDS or Forscan is recommended.
• Perform Throttle & Idle Relearn Procedures for optimal performance.

4. Common Fault Codes (DTCs) & Troubleshooting

The ECU logs DTCs when an issue is detected. Here are some common Ford Fiesta MK7 Zetec ECU fault codes:

5. Clearing Fault Codes

Using an OBD-II Scanner (Ford IDS, Forscan, or Generic)

1. Connect the OBD-II scanner to the diagnostic port (under the steering column).
2. Turn the ignition ON (engine off).
3. Read stored fault codes using the OBD-II scanner.
4. Select \"Clear Codes\" to erase any stored errors.
5. Restart the engine and check if warning lights reappear.

Manual ECU Reset (Battery Disconnect Method)

1. Disconnect the battery (-) terminal for at least 30 minutes.
2. Press and hold the brake pedal for 20-30 seconds (to discharge residual power).
3. Reconnect the battery and turn the ignition ON (without starting).
4. Start the engine and let it idle for 5–10 minutes.
5. Check for any warning lights.

6. Fitment in the Car & Communication with Other Modules

ECU Location:

• Typically located inside the engine bay, near the firewall.

Communication with Other Modules:

The ECU communicates via the CAN Bus system with:

1. Instrument Cluster (ICM) – Displays check engine lights and warnings.
2. ABS & Traction Control System (TCM) – Regulates engine power under wheel slip.
3. Immobilizer (PATS) – Ensures only programmed keys can start the car.
4. Turbo & Fuel Injection System – Adjusts fuel-air mixture for best efficiency.
5. Body Control Module (BCM) – Controls lights, wipers, and other electronics.

7. Summary