The International DT466 was a workhorse for fleets throughout the late ’90s and early 2000s. Known for reliability and ease of maintenance, it powered everything from delivery trucks to school buses. If you’re working on one of these engines, having access to the correct fault codes is the first step toward a fast and accurate repair.
International DT466 (1996–2003) Engine Overview
- Displacement: 7.6L
- Configuration: Inline 6-Cylinder
- Horsepower Range: 175–250 HP
- Torque: Up to 660 lb-ft
- Emissions System: Pre-EGR or Early EGR systems depending on model year
- Applications: Medium-duty trucks, buses, and vocational equipment
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Fault Codes for International DT466 (1996–2003)
| Fault | PID | SPN | FMI | SID | Title |
| 111 | No Errors Detected – Instrument Panel Flashing Code Only | ||||
| 112 | 168 | 3 | Electrical System B+ Voltage Out of Range – High | ||
| 113 | 168 | 4 | Electrical System B+ Voltage Out of Range – Low | ||
| 114 | 110 | 4 | Engine Coolant Temperature Signal Out of Range – Low | ||
| 115 | 110 | 3 | Engine Coolant Temperature Signal Out of Range – High | ||
| 121 | 102 | 3 | Intake Manifold Absolute Pressure Signal Out of Range – High | ||
| 122 | 102 | 4 | Intake Manifold Absolute Pressure Signal Out of Range – Low | ||
| 123 | 102 | 2 | Intake Manifold Absolute Pressure in Range DTC | ||
| 124 | 164 | 4 | Injection Control Pressure Signal Out of Range – Low | ||
| 125 | 164 | 3 | Injection Control Pressure Signal Out of Range – High | ||
| 131 | 91 | 4 | Accelerator Pedal Position Signal Out of Range – Low | ||
| 132 | 91 | 3 | Accelerator Pedal Position Signal Out of Range – High | ||
| 133 | 91 | 2 | Accelerator Pedal Position Signal In Range DTC “M” | ||
| 134 | 91 | 7 | Accelerator Pedal Position and Idle Validation Switch Disagree | ||
| 135 | 11 | 230 | Idle Validation Switch Circuit DTC | ||
| 141 | 84 | 4 | Vehicle Speed Signal Out of Range – Low | ||
| 142 | 84 | 3 | Vehicle Speed Signal Out of Range – High | ||
| 143 | 2 | 21 | Incorrect Number of CMP Signal Transitions Per Cam Revolutions | ||
| 144 | 8 | 21 | CMP Signal Noise Detected | ||
| 145 | 8 | 21 | CMP Signal Inactive While ICP Has Increased | ||
| 151 | 108 | 3 | BAP Signal Out of Range – High | ||
| 152 | 108 | 4 | BAP Signal Out of Range – Low | ||
| 154 | 171 | 4 | Intake Air Temperature Signal Out of Range – Low | ||
| 155 | 171 | 3 | Intake Air Temperature Signal Out of Range – High | ||
| 211 | 100 | 4 | Engine Oil Pressure Signal Out of Range – Low | ||
| 212 | 100 | 3 | Engine Oil Pressure Signal Out of Range – High | ||
| 213 | 4 | 29 | Remote Throttle Signal Out of Range – Low | ||
| 214 | 3 | 29 | Remote Throttle Signal Out of Range – High | ||
| 215 | 84 | 8 | Vehicle Speed Signal Frequency Out of Range – High | ||
| 216 | 73 | 4 | Electronic Pressure Signal Out of Range – Low | ||
| 225 | 73 | 4 | Engine Oil Pressure Sensor Signal in Range DTC | ||
| 226 | 73 | 3 | Electronic Sensor Signal Out of Range – High | ||
| 231 | 2 | 250 | ATA Data Communication Link Error | ||
| 236 | 111 | 2 | ECL Switch Circuit DTC | ||
| 241 | 11 | 42 | Injection Control Pressure Regualtor OCC Self Test Failed | ||
| 246 | 11 | 56 | Engine Fan – OCC Self Test Failed | ||
| 256 | Radiator Shutter Enable OCC Self Test Failed | ||||
| 265 | 62 | 11 | Vehicle Retarder Relay OCC DTC | ||
| 311 | 175 | 4 | Engine Oil Temperature Signal Out of Range – Low | ||
| 312 | 175 | 3 | Engine Oil Temperature Signal Out of Range – High | ||
| 313 | 100 | 1 | Engine Oil Pressure Below Warning Level | ||
| 314 | 100 | 7 | Engine Oil Pressure Below Critical Level | ||
| 315 | 190 | Engine Speed Above Warning Level | |||
| 316 | 110 | 1 | Engine Coolant Temperature Unable to Reach Commanded Set Point | ||
| 321 | 110 | Engine Coolant Temperature Above Warning Level | |||
| 322 | 110 | 7 | Engine Coolant Temperature Above Critical Level | ||
| 323 | 111 | 1 | Engine Coolant Level Below Warning / Critical Level | ||
| 324 | 71 | 14 | Idle Shutdown Timer Enabled Engine Shutdown | ||
| 325 | 110 | 14 | Power Reduced – Matched to Cooling System Performance | ||
| 331 | 164 | Injection Control Pressure Above System Working Range | |||
| 332 | 164 | 13 | Injection Control Pressure Above Spec. With Engine Off | ||
| 333 | 164 | 10 | Injection Control Pressure Above / Below Desired Level | ||
| 334 | 164 | 7 | ICP Unable to Achieve Set Point in Time (Poor Performance) | ||
| 335 | 164 | 1 | ICP Unable To Build Pressure During Cranking | ||
| 336 | 73 | 10 | Electronic Pressure Unable to Achieve Commanded Set Point | ||
| 421 | 5 | 1 | Cylinder 1 – High Side to Low Side Open | ||
| 422 | 5 | 2 | Cylinder 2 – High Side to Low Side Open | ||
| 423 | 5 | 3 | Cylinder 3 – High Side to Low Side Open | ||
| 424 | 5 | 4 | Cylinder 4 – High Side to Low Side Open | ||
| 425 | 5 | 5 | Cylinder 5 – High Side to Low Side Open | ||
| 426 | 5 | 6 | Cylinder 6 – High Side to Low Side Open | ||
| 431 | 4 | 1 | Cylinder 1 – High Side Shorted to Low Side | ||
| 432 | 4 | 2 | Cylinder 2 – High Side Shorted to Low Side | ||
| 433 | 4 | 3 | Cylinder 3 – High Side Shorted to Low Side | ||
| 434 | 4 | 4 | Cylinder 4 – High Side Shorted to Low Side | ||
| 435 | 4 | 5 | Cylinder 5 – High Side Shorted to Low Side | ||
| 436 | 4 | 6 | Cylinder 6 – High Side Shorted to Low Side | ||
| 451 | 6 | 1 | Cylinder 1 – High Side Shorted to Ground or VBAT | ||
| 452 | 6 | 2 | Cylinder 2 – High Side Shorted to Ground or VBAT | ||
| 453 | 6 | 3 | Cylinder 3 – High Side Shorted to Ground or VBAT | ||
| 454 | 6 | 4 | Cylinder 4 – High Side Shorted to Ground or VBAT | ||
| 455 | 6 | 5 | Cylinder 5 – High Side Shorted to Ground or VBAT | ||
| 456 | 6 | 6 | Cylinder 6 – High Side Shorted to Ground or VBAT | ||
| 461 | 7 | 1 | Cylinder 1 – Cylinder Contribution Test Failed | ||
| 462 | 7 | 2 | Cylinder 2 – Cylinder Contribution Test Failed | ||
| 463 | 7 | 3 | Cylinder 3 – Cylinder Contribution Test Failed | ||
| 464 | 7 | 4 | Cylinder 4 – Cylinder Contribution Test Failed | ||
| 465 | 7 | 5 | Cylinder 5 – Cylinder Contribution Test Failed | ||
| 466 | 7 | 6 | Cylinder 6 – Cylinder Contribution Test Failed | ||
| 513 | 5 | 151 | Low Side to Bank 1 Open | ||
| 514 | 5 | 152 | Low Side to Bank 2 Open | ||
| 515 | 6 | 151 | Bank 1 Low Side Short to Ground or B+ | ||
| 521 | 6 | 152 | Bank 2 Low Side Short to Ground or B+ | ||
| 525 | 6 | 254 | Injector Driver Circuit | ||
| 612 | 7 | 21 | Incorrect ECM Installed For CMP Timing Wheel | ||
| 614 | 13 | 252 | EFRC / ECM Configuration Mismatch | ||
| 621 | 1 | 253 | Engine Using Mfg. Default Rating Program Engine | ||
| 622 | 253 | Engine Using Field Default Rating | |||
| 623 | 13 | 253 | Invalid Enigne Family Rating Code | ||
| 624 | 17 | 240 | Field Default Active | ||
| 626 | 8 | 254 | Unexpected Reset DTC | ||
| 631 | 2 | 240 | ROM (Read Only Memory) Self Test DTC | ||
| 632 | 12 | 254 | RAM Memory / CPU Self Test DTC | ||
| 655 | 13 | 240 | Programmable Parameter List Level Incompatible | ||
| 661 | 11 | 240 | RAM Programmable Parameter List Corrupt | ||
| 664 | 14 | 253 | Calibration Level Incompatible | ||
| 665 | 14 | 252 | Programmable Parameter Memory Content Corrupt |
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