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International Navistar Fault Codes list DTC
International Navistar Fault Codes list DTC
International Navistar Fault Codes list.
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INTERNATIONAL Navistar Fault Codes list DTC

DTC  Circuit Condition Description

 

 111 ECM No errors detected - flash code only

 

 112 ECM PWR Electrical system voltage B+ out-of-range high

 

 113 ECM PWR Electrical system voltage B+ out-of-range low

 

 114 ECT Engine Coolant Temperature signal out-of-range low

 

 115 ECT Engine Coolant Temperature signal out-of-range high

 

 121 MAP Intake Manifold Absolute Pressure signal out-of-range high  

 

122 MAP Intake Manifold Absolute Pressure signal out-of-range low

 

 123 MAP Intake Manifold Absolute Pressure signal in-range fault 

 

 124 ICP Injection Control Pressure signal out-of-range low 

 

 125 ICP Injection Control Pressure signal out-of-range high 

 

126 BCP Engine Brake Control Pressure signal out-of-range low

 

 127 BCP Engine Brake Control Pressure signal out-of-range high 

 

 131 APS/IVS APS signal out-of-range low 

 

 132 APS/IVS APS signal out-of-range high 

 

 133 APS/IVS APS signal in-range DTC 

 

 134 APS/IVS APS signal and IVS disagree 

 

 135 APS/IVS Idle Validation Switch circuit fault

International WorkStar

136 EFP Engine Fuel Pressure signal out-of-range low 

 

 137 EFP Engine Fuel Pressure signal out-of-range high

 

 141 VVS Vehicle Speed Sensor signal out-of-range low

 

 142 VVS Vehicle Speed Sensor signal out-of-range high

 

 143 CMP Incorrect CMP signal signature 

 

 145 CMP CMP signal inactive

 

146 CKP CKP signal inactive

 

 147 CKP Incorrect CKP signal signature 

 

 151 BAP Barometric Absolute Pressure signal out-of-range high 

 

 152 BAP Barometric Absolute Pressure signal out-of-range low 

 

 153 WIF Barometric Absolute Pressure signal out-of-range low 

 

 154 IAT Inlet Air temperature signal out-of-range low

 

 155 IAT Inlet Air temperature signal out-of-range high

 

 161 MAT Manifold Air Temperature Signal out-of-range low 

 

 162 MAT Manifold Air Temperature Signal out-of-range high 

 

 163 EGR Exhaust Gas Recirculation Valve Position Signal out-of-range low 

 

211 EOP Engine Oil Pressure signal out-of-range low 

 

 212 EOP Engine Oil Pressure signal out-of-range high

 

215 VSS Vehicle Speed Sensor signal frequency out-of-range high 

 

 225 EOP EOP sensor signal in-range fault 

 

 231 ATA ATA data communication link error

 

 236 ELC ECL switch circuit fault

 

 241 IPR Injection Control Pressure regulator OCC self test failed 

 

 246 EFAN Engine Fan - OCC self test fault

 

 247 BSV Engine Brake enable OCC self test failed 

 

 251 IAH Inlet Air Heater OCC self test failed

 

 256 RSE Variable Geometry Turbo control OCC self test failed 

 

 267 ECI Engine Crank Inhibit OCC self test failed 

 

International Navistar Truck Fault Codes list


 311 EOT Engine Oil Temperature signal out-of-range low 

 

 312 EOT Engine Oil Temperature signal out-of-range high 

 

 313 EWPS Engine Oil Pressure below warning level 

 

314 EWPS Engine Oil Pressure below critical level

 

315 EWPS Engine speed above warning level

 

316 EWPS Engine Coolant Temperature unable to reach commanded set point

 

321 EWPS Engine Coolant Temperature above warning level

 

322 EWPS Engine Coolant Temperature above critical level

 

323 EWPS Engine Coolant Level below warning/critical level

 

324 IST Idle Shutdown Timer enabled engine shutdown

 

325 EWPS Power reduced, matched to cooling system performance

 

331 ICP SYS Injection Control Pressure above system working range

 

332 ICP Injection Control Pressure above spec. with engine not running

 

333 ICP SYS Injection Control Pressure above/below desired level 

 

334 ICP SYS ICP unable to achieve setpoint in time (poor performance) 

 

335 ICP SYS ICP unable to build pressure during cranking

 

341 EBP Exhaust Back Pressure signal out-of-range low 

 

342 EBP Exhaust Back Pressure signal out-of-range high

 

343 AMS Excessive exhaust back pressure (gauge)

 

344 EBP Exhaust back pressure above spec. when engine off

 

345 AMS Faults detected during VGT portion of the AMS Test

 

346 AMS Faults detected during EGR portion of the AMS Test

 

351 AMS Change in exhaust back pressure did not occur when expected

 

353 AMS Variable Geometry Turbo control over duty cycle

 

354 AMS Variable Geometry Turbo control under duty cycle

 

 355 AMS Variable Geometry Turbo overspeed

 

 361 AMS VGT control input (MAP/EBP) above/below desired level 

 

365 AMS EGR Valve Position above/below desired level

 

368 AMS EGR driver module/ECM2 communication fault

 

371 EFP Engine Fuel Pressure is above normal operating range

 

372 EFP Engine Fuel Pressure is below normal operating range

 

421 - 426 INJ High side to low side open (cylinder number indicated)

 

431 - 436 INJ High side shorted to low side (cylinder number indicated)

 

451 - 456 INJ High side short to ground or V BAT (cylinder number indicated)

 

International Navistar Truck DTC list

International Lonestar

523 IDM IDM V IGN voltage low

 

525 IDM IDM fault

 

533 IDM IDM relay voltage high

 

534 IDM IDM relay voltage low

 

543 ECM/IDM ECM/IDM communications fault

 

546 ECM/IDM Engine Brake Control Pressure is below expected range

 

547 ECM/IDM Engine Brake Control Pressure is above expected range

 

551 ECM/IDM IDM/CMPO signal inactive

 

552 ECM/IDM IDM incorrect CMPO signal signature

 

553 ECM/IDM IDM CKPO signal inactive

 

554 ECM/IDM IDM incorrect CKPO signal signature

 

613 ECM ECM/IDM software not compatible

 

614 ECM EFRC/ECM configuration mismatch

 

621 ECM Engine using mfg. default rating

 

622 ECM Engine using field default rating

 

623 ECM Invalid Engine Family Rating Code (EFRC)

 

624 ECM Field default active

 

626 ECM/PWR Unexpected reset fault 

 

631 ECM Read Only Memory (ROM) self test fault

 

632 ECM Random Access Memory (RAM) - CPU self test fault

 

655 ECM Programmable parameter list level incompatible

 

661 ECM RAM programmable parameter list corrupt

 

664 ECM Calibration level incompatible

 

665 ECM Programmable parameter memory content corrupt