| STEP | CHECK TO BE PERFORMED | REMEDIAL ACTION IF THE CHECK IS NOT OK |
|---|
| 1 | Check solenoid signal- With the Examiner in voltmeter mode set to fsd of 12 V and 2 sec time baseConnect between pin 29 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 | Solenoid wiring checkCheck the continuity/insulation of the wiring between the solenoid and the robotized gearbox control unit See E7051 ROBOTIZED GEARBOX Move on to Step 3 | Restore wiring continuity/insulation |
| 3 | Check solenoid earthCheck the solenoid is correctly earthed | Restore the correct earth connection |
| 4 | Solenoid checkCheck that the solenoid resistance value is 2.5 Ohm ± 6% at 20°C | Replace gear selection solenoid Op. 2127C54 GEAR SELECTION 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. |
