The Engine Control Module (ECM) detects the following conditions: •The signal voltage from the engine coolant temperature sensor is less than 0.2 VDC for more than eight seconds.•The ECM has been powered for at least two seconds. Probable Causes: 1) ECM Connection/Harness2) If code 232-3 or 232-4 (5 Volt Supply voltage codes) are active, troubleshoot those instead3) Temperature sensor failure4) Temperature sensor harness5) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 27 PID: 110 SPN: FMI: 3 Coolant Temperature voltage high CAT 3406E (Prefix 5DS or 1LW) Fault Code: 26 PID: 108 SPN: FMI: 4 Barometric Pressure voltage...

The ECM detects the following conditions: •The duty cycle for the accelerator pedal position sensor is less than 5 percent or the duty cycle is greater than 95 percent for more than two seconds.•The ECM has been powered for at least three seconds. Probable Causes: 1) ECM Connection/Harness2) Accelerator Position Sensor3) Accelerator Position Sensor Harness4) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 27 PID: 110 SPN: FMI: 4 Coolant Temperature voltage low CAT 3406E (Prefix 5DS or 1LW) Fault Code: 27 PID: 110 SPN: FMI: 3 Coolant Temperature voltage high CAT 3406E (Prefix 5DS or 1LW) Fault...

The Engine Control Module (ECM) detects the following conditions: •The duty cycle of the signal for the PTO throttle is less than 5 percent or more than 95 percent for more than two seconds.•The PTO Configuration is programmed to “Remote Throttle”.•The ECM has been powered for at least three seconds. Probable Causes: 1) ECM Connection/Harness2) Accelerator Position Sensor3) Accelerator Position Sensor Harness4) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 29 PID: 30 SPN: FMI: 8 PTO Throttle signal invalid CAT 3406E (Prefix 5DS or 1LW) Fault Code: 28 PID: 91 SPN: FMI: 13 Throttle Position out of...

The ECM detects the following conditions: •The duty cycle for the accelerator pedal position sensor is less than 5 percent or the duty cycle is greater than 95 percent for more than two seconds.•The ECM has been powered for at least three seconds. Probable Causes: 1) ECM Connection/Harness2) Accelerator Position Sensor3) Accelerator Position Sensor Harness4) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 28 PID: 91 SPN: FMI: 13 Throttle Position out of calibration CAT 3406E (Prefix 5DS or 1LW) Fault Code: 27 PID: 110 SPN: FMI: 4 Coolant Temperature voltage low CAT 3406E (Prefix 5DS or 1LW)...

The ECM detects the following conditions: •The vehicle speed signal indicates that the vehicle speed is 0 MPH.•Desired engine speed is greater than the programmed “VSL Protection”.•The “VSL Protection” parameter is programmed to a value that is less than 2120 rpm. Probable Causes: 1) Fuel system restriction (Uncommon, but possible)2) If speedometer is not accurate, then ECM is not programmed correctly3) Vehicle speed sensor4) Vehicle speed sensor wiring5) ECM Connection/Harness6) Speedometer failure7) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 29 PID: 30 SPN: FMI: 13 PTO Throttle out of calibration CAT 3406E (Prefix 5DS or 1LW) Fault...