2750998 - C05 AUTOMATIC-MANUAL SHIFT
The vehicle switches to manual by itself when driving in automatic| Results of the tests | ||||
| 0 | CONTROL UNIT ERRORS CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
Check that there are no control unit errors. In particular:
| Continue to Step 4 | Presence of one or more of the errors included in the list | Continue to Step 1 | |
| 1 | CHECKS ON FAULTS DETECTED | All OK | Problems met | Operation |
| Check the faults according to the See Test 2127I What to do for error in Selespeed control unit | Continue to Step 3 | Faulty connections | Repair/replace the wiringContinue to Step 3 | |
| The active diagnosis of the solenoid valve is not successful and no faults are detected at the wiring (clutch and/or engagement solenoid valve) | Continue to Step 2 | |||
| 2 | AFTER THE SOLENOID VALVE ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
| If this step has been reached for the active diagnosis of the clutch solenoid valve, replace it Op. 2127C56 and check the operation by carrying out a C.M.If this step has been reached for the active diagnosis of the engagement solenoid valve, replace it Op. 2127C52 and check the operation | Continue to Step 4 | . | ||
| 3 | REPLACING SENSORS/SOLENOIDS | All OK | Problems met | Operation |
| If there is a gear engagement sensor error and no faults are detected at the connections/wiring, replace it Op. 2127E42 and check that the position reading is correct by carrying out a series of C.M.If there is an electromagnetic brake error and no faults are detected at the connections/wiring, replace Op. 2127C54 and check the brake is operating correctly. | Continue to Step 4 | . | ||
| 4 | AFTER THE CHECKS ON THE FAULTS DETECTED | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | The fault persists | Continue to Step 5 | |
| 5 | GEAR LEVER CHECK | All OK | Problems met | Operation |
| Check that the gear lever is working properly following See Test 2127L GEAR LEVER CHECK | Continue to Step 6 | The lever states displayed are not correct | Check the wiring and the switches/gear lever Repair/replace the part that is not working | |
| There is no change of state and/or the 'AUTO' button is not displayed | Check the switch and the wiring. Repair/replace the part that is not working | |||
| 6 | AFTER THE CHECK ON THE CORRECT OPERATION OF THE GEAR LEVER | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | The fault persists | Contact Technical Service for further information on the problem | |