939010161 - Y045 P0503 VEHICLE SPEED INCONSISTENCY
The diagnostic equipment signals: Error P0503 (vehicle speed inconsistency). | This error is detected if the junction unit does not receive the vehicle speed signal or the fuel consumption is too high compared with the power produced. |
| 1 | Error deletion | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
| Press the START/STOP button to turn off the engine and then press is again.In the system: Diesel EDC16C39 electronic injection system, delete the errors. | Move on to Step 2 | |||
| 2 | road tests | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Drive the vehicle in different driving conditions (engine speed and engine load) for a long stretch.Listen out for any unusual noises and other system irregularities.Read the fault codes and record them together with the status after the road test and check that the following error is no longer present: P0503 - Vehicle speed inconsistency | End of diagnosis | 1. The engine is not running smoothly | 1. Proceed as instructed in the See table D003 ENGINE NOT RUNNING SMOOTHLY / (IRREGULAR OPERATION) | |
| 2. The engine is losing power | 2. Proceed as instructed in the See table D004 ENGINE NOT RUNNING SMOOTHLY | |||
| 3. The engine does not produce maximum performance | 3. Proceed as instructed in the See table D005 ENGINE DOES NOT PRODUCE BEST PERFORMANCE | |||
| 4. The engine response is poor | 4. Proceed as instructed in the See table D016 POOR ENGINE RESPONSE | |||
| 5. There is engine knock | 5. Proceed as instructed in the See table S003 ENGINE KNOCKING | |||
| 6. Error P0503 is present | 6. Proceed as instructed in the See Test 3340AB SPEED SIGNAL CHECK |