Motronic M 1.5.4 F2:TROUBLE CODE TABLE
| Trouble Code | Information Sensor Cause of Fault | Data List No. | Trouble Code Storage when |
|---|---|---|---|
| 71 | INTAKE AIR TEMP. VOLTAGE HIGH | 05 | · 180 s elapsed time since engine start |
· Throttle valve is closed for longer than 10 s (idle speed)
· Intake air temperature less than 35.4 °C (31.7 °F) (Short circuit to voltage)
Replacement value:
· The control unit takes 21 °C (69.8 °F) as replacement value.
Effect:
| · The learn functions (oxygen sensor control, idle air control and knock control) are blocked and the last valid values are used for calculation. |