Table 2, Multec (X 12 SZ / X 16 SZ) F2: TROUBLE CODE
Trouble
| Code | Information Sensor | ||
|---|---|---|---|
| Cause of Fault | Remedy in F0: | ||
| DATA LIST | Trouble Code Storage when... | ||
| 21 | THROTTLE POSIT. SENSOR VOLTAGE HIGH | 04 | · Intake manifold absolute pressure less than 700 hPa. Engine running in partial load range, operating temperature |
· Engine speed lower than 4000 rpm
· Following trouble codes not stored: 33, 34
· Throttle valve potentiometer voltage greater than 4 V
· The above conditions must be fulfilled for at least 2 s
If trouble code 21 was recognized, the control unit calculates with a replacement characteristic curve dependent on the engine speed and intake manifold pressure.