The Engine Control Module (ECM) detects the following conditions: •The signal voltage from the boost pressure sensor is greater than 4.95 VDC for more than two seconds.•The ECM has been powered for at least two seconds.•The engine is not running or the rack position is less than 50 percent with the engine retarder off. Probable Causes: 1) ECM Connection/Harness2) Crankcase breather plugged3) Pressure sensor4) Pressure sensor harness5) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 25 PID: 102 SPN: FMI: 0 Excessive Boost Pressure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 24 PID: 100 SPN: FMI: 4...

The Engine Control Module (ECM) detects the following conditions: •The signal voltage from the boost pressure sensor is greater than 4.95 VDC for more than two seconds.•The ECM has been powered for at least two seconds.•The engine is not running or the rack position is less than 50 percent with the engine retarder off. Probable Causes: 1) ECM Connection/Harness2) Crankcase breather plugged3) Pressure sensor4) Pressure sensor harness5) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 25 PID: 102 SPN: FMI: 3 Boost Pressure voltage high CAT 3406E (Prefix 5DS or 1LW) Fault Code: 25 PID: 102 SPN: FMI:...

The Engine Control Module (ECM) detects the following conditions: •The signal voltage from the atmospheric pressure sensor is greater than 4.9 VDC for more than 30 seconds.•The ECM has been powered for at least two seconds. Probable Causes: 1) ECM Connection/Harness2) Crankcase breather plugged3) Pressure sensor4) Pressure sensor harness5) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 25 PID: 102 SPN: FMI: 4 Boost Pressure voltage low CAT 3406E (Prefix 5DS or 1LW) Fault Code: 25 PID: 102 SPN: FMI: 3 Boost Pressure voltage high CAT 3406E (Prefix 5DS or 1LW) Fault Code: 25 PID: 102 SPN: FMI:...

The Engine Control Module (ECM) detects the following conditions: •The signal voltage from the atmospheric pressure sensor is less than 0.2 VDC for more than 30 seconds.•The ECM has been powered for at least two seconds.•The engine is not running or the engine has been running for more than ten seconds. Probable Causes: 1) ECM Connection/Harness2) Crankcase breather plugged3) Pressure sensor4) Pressure sensor harness5) ECM Failure CAT 3406E (Prefix 5DS or 1LW) Fault Code: 26 PID: 108 SPN: FMI: 3 Barometric Pressure voltage high CAT 3406E (Prefix 5DS or 1LW) Fault Code: 25 PID: 102 SPN: FMI: 4 Boost Pressure...

The Engine Control Module (ECM) detects the following conditions: •The signal voltage from the engine coolant temperature sensor is greater than 4.95 VDC for more than eight seconds.•The ECM has been powered for at least two seconds.•The engine has been running for more than seven minutes. 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: 26 PID: 108 SPN: FMI: 4 Barometric Pressure voltage low CAT 3406E (Prefix 5DS or 1LW) Fault Code:...