SECTION 2 300HH, 375, 375H, 375HH, 425 AND 425H USER MANUAL R00
49
2.13 LISTING OF ENGINE DIAGNOSTIC CODES (DTCS)
Trouble Codes
NOTE
Not all of these codes are used on all OEM
engine applications.
Third column below is for Blink Code
retrieval method only.
DTCs Listing in Ascending SPN/FMI Codes
SPN FMI
Blink
Code
Description of Fault Corrective Action
28 3 15 Throttle #3 Signal Out of Range High Check Sensor and Wiring
4 — Throttle #3 Signal Out of Range Low Check Sensor and Wiring
29 3 13 Throttle #2 Signal Out of Range Low Check Sensor and Wiring
4 — Throttle #2 Signal Out of Range Low Check Sensor and Wiring
84 31 — Vehicle Speed Signal Unreliable Contact Servicing Dealer
91 3 11 Throttle #1 Signal Out of Range High Check Switch and Wiring
4 12 Throttle #1 Signal Out of Range Low Check Switch and Wiring
9 — Throttle #1 Communication Signal Erratic Check Sensor and Wiring
94 3 27 Low Pressure Fuel Signal Out of Range High Check Sensor and Wiring
4 28 Low Pressure Fuel Signal Out of Range Low Check Sensor and Wiring
10 88 Low Pressure Fuel Rate of Change Abnormal Contact Servicing Dealer
13 — Low Pressure Fuel Out of Calibration Contact Servicing Dealer
17 85 High Pressure Fuel System—Pressure Slightly Low Contact Servicing Dealer
97 0 — Water in Fuel Continuously Detected Contact Servicing Dealer
3 — Water in Fuel Signal Out of Range High Check Sensor and Wiring
4 — Water in Fuel Signal Out of Range Low Check Sensor and Wiring
16 — Water in Fuel Detected Stop and Drain Water Separator
100 1 75 Engine Oil Pressure Signal Extremely Low Check Oil Level
3 23 Engine Oil Pressure Signal Out of Range High Check Sensor and Wiring
4 24 Engine Oil Pressure Signal Out of Range Low Check Sensor and Wiring
18 74 Engine Oil Pressure Signal Moderately Low Check Oil Level
105 0 — Intake Manifold Air Temp Signal Extremely High Check Air Cleaner, Aftercooler or
Room Temp
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