Motronic M 2.8.1 F2: TROUBLE CODE TABLE
| Trouble Code | Information Sensor |
|---|---|
| Cause of Fault | Remedy in |
F0: DATA LIST
| No. | Trouble Code Storage when... |
98
| O2 SENSOR 2 CIRCUIT VOLTAGE LOW |
|---|
| 46, 48, 52, 54, 56 |
| · Oxygen sensor voltage lower than 90 mV |
(Short circuit to ground)
· Condition must be fulfilled for at least 2.5 s
Condition for approval of fault storage:
The fault is stored and the replacement value called up if the following conditions are fulfilled consecutively:
1.) Coolant temperature higher than 70 °C / 158 °F
2.) Condition 1.) fulfilled for 3 min
3.) Load signal greater than 1.7 ms
4.) After conditions 1.) to 3.) are fulfilled, waiting period of 5.1 s elapsed
5.) Trouble codes 73 and 74 not recognized
Replacement values:
· 450 mV (oxygen sensor control switched off)