| STEP | CHECK TO BE PERFORMED | REMEDIAL ACTION IF THE CHECK IS NOT OK |
|---|
| 1 | Checking the clutch control solenoid signal- With the Examiner in voltmeter mode set to fsd of 20 V and 2 sec time base- Connect between pin 43 of the gearbox control unit and earth- Turn the key to the MAR position- Press the brake pedal- Press the Examiner "Start" button- Select a gearCheck that the signal corresponds to the graph enclosed. | Move on to Step 2 |
| 2 | Checking the clutch control solenoid wiringCheck the continuity/insulation of the wiring between the solenoid and the robotized gearbox control unit See E7051 ROBOTIZED GEARBOX | Restore wiring continuity/insulation |
| 3 | Checking the clutch control solenoid earthCheck the solenoid is correctly earthed See E7051 ROBOTIZED GEARBOX | Restore the correct earth connection |
| 4 | Checking the clutch control solenoidCheck that the solenoid resistance value is 2.5 Ohm ± 6% at 20°CMove on to Step 5 | Replace the clutch control solenoid Op. 2127C56 CLUTCH CONTROL SOLENOID - R.R. If the above checks are Ok, replace the robotized gearbox control unit Op. 2127E10 HYDRAULIC SPEED SELECTION SYSTEM CONTROL UNIT - R.R. |
| 5 | Check even gears engagement solenoid valve signalConnect the Examiner in voltmeter mode set to fsd of 20 and 2 sec time base between pin 44 of gearbox control unit and earth- Turn the key to the MAR position- Press the brake pedal- Press the Examiner "Start" button- Select an even gear- Check that the signal corresponds to the graph enclosed. | Move on to Step 6 |
| 6 | Check even gears engagement solenoid valve wiringCheck the continuity/insulation of the wiring between the solenoid and the robotized gearbox control unit See E7051 ROBOTIZED GEARBOX Move on to Step 7 | Restore wiring continuity/insulation. |
| 7 | Check even gears engagement solenoid valve earthCheck the solenoid is correctly earthedMove on to Step 8 | Restore the correct earth connection. |
| 8 | Check even gears engagement solenoid valveCheck that the solenoid resistance value is 2.5 Ohm ± 6% at 20°CMove on to Step 9 | Replace even gears engagement solenoid Op. 2127C52 ODD AND EVEN GEAR ENGAGEMENT SOLENOIDS - R.R. If the above checks are Ok, replace the robotized gearbox control unit Op. 2127E10 HYDRAULIC SPEED SELECTION SYSTEM CONTROL UNIT - R.R. |
| 9 | Check odd gears engagement solenoid valve signalConnect an Examiner in voltmeter mode between pin 32 of the gearbox control unit and earth- Turn the key to the MAR position- Press the brake pedal- Press the Examiner "Start" button- Select an odd gearCheck that the signal corresponds to the graph enclosed | Move on to Step 10 |
| 10 | Check odd gears engagement solenoid valve wiringCheck the continuity/insulation of the wiring between the solenoid and the robotized gearbox control unit See E7051 ROBOTIZED GEARBOX Move on to Step 11 | Restore wiring continuity/insulation |
| 11 | Check odd gears engagement solenoid valve earthCheck the solenoid is correctly earthedMove on to Step 12 | Restore earth connection |
| 12 | Check odd gears engagement solenoid valveCheck that the solenoid resistance value is 2.5 Ohm ± 6% at 20°C | Replace odd gears engagement solenoid Op. 2127C52 ODD AND EVEN GEAR ENGAGEMENT SOLENOIDS - R.R. If the above checks are Ok, replace the robotized gearbox control unit Op. 2127E10 HYDRAULIC SPEED SELECTION SYSTEM CONTROL UNIT - R.R. |
