How to Remove and Install the Engine Control Unit Opel Corsa D

Important: When returning a replaced control unit to Opel, do not clear the fault memory.

Note. The security code must be reset using TECH 2 when replacing or interchanging the engine control module (before removal)

Remove

1. 1. Open bonnet
2. 2. Read out control unit data with TECH 2 • Connect TECH 2 with diagnostic plug • Establish communication with TECH2 • End communication with Tech 2 • Disconnect TECH 2 from diagnostic plug • Remove ignition key
3. 3. Disconnect battery • Detach earth connection from earth terminal

Note. The battery must not be disconnected until all consumers (e.g. fan) have ceased operation. However, a minimum waiting time of 30 sec. must be observed

4. 4. Disconnect wiring harness connector (3) • Detach in direction of arrow
5. 5. Disconnect wiring harness plug (4) • Open latch (5)
6. 6. Detach earth cable (1) from engine control unit • Unscrew bolt
7. 7. Detach engine control unit from intake manifold • Unscrew 4x bolts (2)

Install

8. 8. Attach engine control unit to intake manifold • Tighten 4x bolts
9. 9. Attach earth cable to engine control unit • Tighten bolt
10. 10. Connect 2x wiring harness plug, engine control unit
11. 11. Connect earth cable to battery
12. 12. Upload control unit data with TECH 2 • Insert ignition key • Connect TECH 2 with diagnostic plug • Establish communication with TECH2 • Disconnect TECH 2 from diagnostic plug

Note. When replacing the engine control unit, observe the service plan

13. 13. Program volatile memories
14. 14. Close bonnet