U2105 = Lost Comm with Engine Control System.
The ECU, (The Brain), isn't communicating with other control units within the vehicle. This could be anything from a loose wire to a failing ECU system. Get a Good Auto-Electrician to look at it as they will have a more accurate Diagnostic system to find the problem.
ITS AT THE BOTTOM OF THE ENGINE NEAR THE CRANKSHAFT PULLEY, IF YOU STAND IN FRONT OF THE CAR FACING THE WINDSCREEN , ITS ON YOUR LEFT , IT ACTUALLY READS OFF THE PULLEY TOOTHED WHEEL, IT FITS ONTO A BRACKET HELD BY A TORX BOLT , ITS ALSO VERY CLOSE TO THE PULLEY AND HAS A CABLE CONNECTED TO IT
SOURCE: Opel Corsa B automatic transmission Fault
have you replace the transmission fuse it on the cigar lighter circuit?
SOURCE: i want to service my
Hi.
There is one manual at this link. The manual is a compressed archive in 13 parts. Download all parts into a single folder and extract the PDF file.
SOURCE: how can you reset the
Service reset
Important note: Proceed exactly as follows; otherwise the reset system will go into the locked position and special tools are required to unlock it (Tech 2 tester).
1. Turn the ignition OFF.
2. Press and hold the reset button [1] (see the above picture).
3. After 3 seconds the "Distance till service" appears on the display, "InSP 0".
4. Press and hold the brake pedal.
5. Note: Ensure the button [1] is still pressed.
6. Turn the ignition ON.
7. The display shows: "InSP----".
8. After turning the ignition ON, wait for the service message to change and keep the reset button pressed for at least 3 seconds.
9. Release the brake pedal and reset button at the same time.
10. Wait for 10 seconds, until the display shows: "InSP XX,000 km".
11. The system is reset.
No idea offhand to be honest i would need my head under the bonnet to know what wrong .could be anything from the gauze filter in the fuel tank on the bottom of the fuel pump becoming chocked up and leaving the car allows it to drop away to a faulty pump overheating or the contacts ,maybe even a ignition module overheating ,Best advice is ask a local mechanic to have a look for you as normally these early opel corsas with the 4 cylinder engine are bullet proof they are even valve free if the timing belt snaps .
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