Group 43 MID 130 Transmission Control Unit, Fault Codes 18 Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 2 • Data erratic, intermittent, or incorrect • The sensor indicates wrong direction The following conditions must be fulfilled for a time of 2,0 s in order to activate:
• The input shaft speed calculated from the countershaft speed sensor (SECS) is above 300 rpm and the clutch is engaged or • The input shaft speed calculated from the countershaft speed sensor (SECS) is above 600 rpm and the clutch position is more engaged than the slip point and the engine speed is received from the engine ECM and above 600 rpm • A forward gear is engaged in the transmission and the mainshaft speed sensor (SESM) indicates reverse movement or • A reverse gear is engaged and the mainshaft speed sensor (SESM) indicates forward movement • There is no other active fault on the sensor for the main shaft speed (SEMS) • Yellow lamp is sent • Slow gear changes • N/A