Verify that the feature settings for the vehicle speed sensor anti-tampering (Fault Code 242), application type and automatic transmission are set correctly. If any of these are set incorrectly for your specific vehicle and application, Fault Code 242 could occur erroneously.
Driving techniques such as driving for extended periods of time in lower gears can log Fault Code 242. Fault Code 242 can be logged if the driver attempts to defeat the road speed governor by repeatedly cycling the keyswitch.
Once the speed signal has been restored the fault code will go inactive once the keyswitch is on for 30 seconds and the ECM senses zero vehicle and engine speed.
Possible repair:
1)Repair or replace the OEM harness.
Cummins ISM CM875 (2003-06) Fault Code: 241 PID: P084 SPN: 84 FMI: 2/2 Wheel-Based Vehicle Speed – Data Erratic, Intermittent, or Incorrect. The ECM lost the vehicle speed signal or is reading an erratic value.
Cummins ISM CM875 (2003-06) Fault Code: 234 PID: P190 SPN: 190 FMI: 0/0 Engine Crankshaft Speed/Position – Data Valid But Above Normal Operating Range – Most Severe Level. Engine speed signal indicates engine speed above engine protection limit.
Cummins ISM CM875 (2003-06) Fault Code: 227 PID: S232 SPN: 620 FMI: 3/3 Sensor Supply 2 Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 2 circuit.
Cummins ISM CM875 (2003-06) Fault Code: 224 PID: S085 SPN: 1265 FMI: 3/3 Centinel? oil control valve circuit – shorted high. Open circuit or high signal voltage detected at Centinel? oil control valve circuit.
Cummins ISM CM875 (2003-06) Fault Code: 223 PID: S085 SPN: 1265 FMI: 4/4 Centinel? oil control valve circuit – shorted low. Low signal voltage detected at Centinel? oil control valve circuit.
Cummins ISM CM875 (2003-06) Fault Code: 222 PID: P108 SPN: 108 FMI: 4/4 Barometric Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at barometric pressure circuit.