NOTES
50
3 25 Intake Manifold Air Temp Signal Out of Range High Check Sensor and Wiring
4 26 Intake Manifold Air Temp Signal Out of Range Low Check Sensor and Wiring
16 55 Intake Manifold Air Temp Signal Moderately High Check Air Cleaner, Aftercooler or
Room Temp
107 0 — Air Filter Pressure Differential Extremely High Check for Plugged Air Filter
110 0 63 Engine Coolant Temp Extremely High Check Cooling System, Reduce
Power
3 18 Engine Coolant Temp Signal Out of Range High Check Sensor and Wiring
4 19 Engine Coolant Temp Signal Out of Range Low Check Sensor and Wiring
15 61 Engine Coolant Temp Signal Slightly High Check Cooling System, Reduce
Power
16 62 Engine Coolant Temp Signal Moderately High Check Cooling System, Reduce
Power
111 1 64 Engine Coolant Level Low Check Operator’s Manual “Adding
Coolant”
158 17 54 ECU Power Down Error (internal ECU problem) Contact Servicing Dealer
160 2 — Axle Speed Unreliable Contact Servicing Dealer
174 0 — Fuel Temp Signal Extremely High Add Fuel or Switch Fuel Tanks
3 37 Fuel Temp Signal Out of Range High Check Sensor and Wiring
4 38 Fuel Temp Signal Out of Range Low Check Sensor and Wiring
16 71 Fuel Temp Signal Moderately High Add Fuel or Switch Fuel Tanks
189 0 — Engine Speed Derate Condition Exists Check Fault Codes/Contact Servicing
Dealer
190 0 42 Engine Speed Extremely High Reduce Engine Speed
16 42 Engine Speed Moderately High Reduce Engine Speed
611 3 98 Injector Shorted to Power Check Wiring
4 99 Injector Shorted to Ground Check Wiring
620 3 98 Sensor Supply 2 Voltage High Check Wiring
4 22 Sensor Supply 2 Voltage Low Check Wiring
627 1 97 All Injector Currents Are Low Check Battery Voltage and Wiring
629 13 — ECU Programming Error Contact Service Dealer
636 2 44 Engine Position Sensor Signal Unreliable Check Sensor and Wiring
8 43 Engine Position Sensor Signal Missing Check Sensor and Wiring
10 44 Engine Position Sensor Signal Rate of Change—
Abnormal
Check Sensor and Wiring
637 2 39 Engine Timing Sensor Signal Unreliable Check Sensor and Wiring