Diagnostic Trouble Codes for Engine Control Unit (ECU)

Control Unit SPN FMI Pri. Description  
ECU 91 09 3 Throttle input not valid or not received  
ECU 94 01 1 Fuel pressure too low - fuel filter restricted or air in system. Shut off the engine and rectify the fault.  
ECU 94 03 2 Fuel pressure sensor voltage is out of range high.  
ECU 94 04 2 Fuel pressure sensor voltage is out of range low.  
ECU 94 16 2 Fuel pressure too high.  
ECU 94 18 2 Fuel pressure too low.  
ECU 97 03 2 Water-in-fuel sensor voltage out of range high.  
ECU 97 04 2 Water-in-fuel sensor voltage out of range low.  
ECU 97 16 1 Water is detected in fuel. Shut off the engine and rectify the fault.  
ECU 100 01 1 Oil pressure too low. Shut off the engine and rectify the fault.  
ECU 100 03 2 Engine oil pressure signal too high.  
ECU 100 04 2 Engine oil pressure signal too low.  
ECU 100 18 2 Engine oil pressure signal moderately low.  
ECU 100 31 2 Engine oil under pressure while engine is shut off.  
ECU 102 2 2 Manifold pressure signal not valid.  
ECU 102 3 2 Manifold pressure signal too high.  
ECU 102 4 2 Manifold pressure signal too low.  
ECU 103   2 Turbocharger speed signal extremely high.  
ECU 103 2 2 Turbocharger speed signal not valid.  
ECU 103 5 2 High resistance in circuit of turbocharger speed sensor.  
ECU 103 6 2 Low resistance in circuit of turbocharger speed sensor.  
ECU 103 8 2 Turbocharger speed signal not valid.  
ECU 103 31 2 Turbocharger speed signal is missing.  
ECU 105   1 Signal from manifold air temperature sensor extremely high. Shut off the engine and rectify the fault.  
ECU 105 3 2 Signal from manifold air temperature sensor too high.  
ECU 105 4 2 Signal from manifold air temperature sensor too low.  
ECU 105 15 2 Signal from manifold air temperature sensor slightly too high.  

 

ZX08994,00000AF -19-21SEP06-1/6

Control Unit SPN FMI Pri. Description  
ECU 105 16 2 Signal from manifold air temperature sensor moderately high.  
ECU 107 00 2 Air filter restricted switch indicates a plugged air filter.  
ECU 108 2 2 Barometric air pressure signal not valid.  
ECU 110 00 1 Signal from coolant temperature sensor extremely high. Shut off the engine and rectify the fault.  
ECU 110 03 2 Coolant temperature signal too high.  
ECU 110 04 2 Coolant temperature signal too low.  
ECU 110 15 2 Coolant temperature signal slightly too high.  
ECU 110 16 2 Coolant temperature signal moderately high.  
ECU 110 17 2 Coolant temperature signal slightly too low.  
ECU 157 3 1 Rail fuel pressure signal too high. Shut off the engine and rectify the fault.  
ECU 157 4 1 Rail fuel pressure signal too low. Shut off the engine and rectify the fault.  
ECU 157 10 2 Rate at which fuel pressure changes at rail not normal.  
ECU 157 17 2 Fuel rail pressure not developed.  
ECU 158 17 2 Control unit not powered down properly.  
ECU 174 00 2 Fuel temperature signal extremely high.  
ECU 174 03 2 Fuel temperature signal too high.  
ECU 174 04 2 Fuel temperature signal too low.  
ECU 174 16 2 Fuel temperature signal moderately high.  
ECU 189 00 1 Engine control unit restricts maximum engine speed.  
ECU 412 00 1 Signal for exhaust gas recirculation temperature extremely high.  
ECU 412 03 2 Signal for exhaust gas recirculation temperature too high.  
ECU 412 04 2 Signal for exhaust gas recirculation temperature too low.  
ECU 412 16 2 Signal for exhaust gas recirculation temperature moderately high.  
ECU 611 03 1 The injector driver has detected a short to battery in the injector wiring.  
ECU 611 04 1 The injector driver has detected a short to ground in the injector wiring.  
ECU 627 01 2 The injector pull-in current is too low or the injector hold-in current is incorrect.  
ECU 629 13 1 ECU programming fault  
ECU 636 02 2 Electrical noise detected on camshaft position sensor.  

 

ZX08994,00000AF -19-21SEP06-2/6

Control Unit SPN FMI Pri. Description  
ECU 636 05 2 High resistance in engine position sensor circuit.  
ECU 636 06 2 Low resistance in engine position sensor circuit.  
ECU 636 08 2 Camshaft position sensor signal is missing.  
ECU 636 10 2 Camshaft position sensor signal has incorrect pulse pattern.  
ECU 637 02 2 Electrical noise detected on crankshaft position sensor.  
ECU 637 05 2 High resistance in engine position sensor circuit.  
ECU 637 06 2 Low resistance in engine position sensor circuit.  
ECU 637 07 2 Position relationship between crankshaft position sensor and camshaft position sensor not correct.  
ECU 637 08 2 Crankshaft position sensor signal is missing.  
ECU 637 10 2 Crankshaft position sensor signal has incorrect pulse pattern.  
ECU 641 04 2 Fault in turbocharger actuator.  
ECU 641 05 2 Voltage at turbocharger actuator too low.  
ECU 641 12 2 ECU/turbocharger actuator communication error.  
ECU 641 13 2 Learn error at turbocharger actuator.  
ECU 641 16 2 Temperature of turbocharger actuator moderately high.  
ECU 651 02 1 Part number of injector 1 invalid.  
ECU 651 05 2 The current to injector 1 is less than expected.  
ECU 651 06 2 The current to injector 1 increases too rapidly.  
ECU 651 07 2 No reaction at injector 1.  
ECU 651 13 2 Calibration fault at injector 1.  
ECU 652 02 1 Part number of injector 2 invalid.  
ECU 652 05 2 The current to injector 2 is less than expected.  
ECU 652 06 2 The current to injector 2 increases too rapidly.  
ECU 652 07 2 No reaction at injector 2.  
ECU 652 13 2 Calibration fault at injector 2.  
ECU 653 02 1 Part number of injector 3 invalid.  
ECU 653 05 2 The current to injector 3 is less than expected.  
ECU 653 06 2 The current to injector 3 increases too rapidly.  
ECU 653 07 2 No reaction at injector 3.  
ECU 653 13 2 Calibration fault at injector 3.  
ECU 654 02 1 Part number of injector 4 invalid.  
ECU 654 05 2 The current to injector 4 is less than expected.  

 

ZX08994,00000AF -19-21SEP06-3/6

Control Unit SPN FMI Pri. Description  
ECU 654 06 2 The current to injector 4 increases too rapidly.  
ECU 654 07 2 No reaction at injector 4.  
ECU 654 13 2 Calibration fault at injector 4.  
ECU 655 02 1 Part number of injector 5 invalid.  
ECU 655 05 2 The current to injector 5 is less than expected.  
ECU 655 06 2 The current to injector 5 increases too rapidly.  
ECU 655 07 2 No reaction at injector 5.  
ECU 655 13 2 Calibration fault at injector 5.  
ECU 656 02 1 Part number of injector 6 invalid.  
ECU 656 05 2 The current to injector 6 is less than expected.  
ECU 656 06 2 The current to injector 6 increases too rapidly.  
ECU 656 07 2 No reaction at injector 6.  
ECU 656 13 2 Calibration fault at injector 6.  
ECU 1075 5 2 Current draw at electric fuel pump too low.  
ECU 1075 6 2 Current draw at electric fuel pump too high.  
ECU 1075 12 2 Failed electric fuel pump.  
ECU 1136 00 1 ECU temperature extremely high.  
ECU 1136 16 2 ECU temperature moderately high.  
ECU 1172 03 2 Compressor inlet temperature signal too high.  
ECU 1172 04 2 Compressor inlet temperature signal too low.  
ECU 1180 00 1 Turbine inlet temperature signal extremely high.  
ECU 1180 16 2 Turbine inlet temperature signal moderately high.  
ECU 1209 02 2 Fault at exhaust pressure sensor.  
ECU 1209 03 2 Fault at exhaust pressure sensor.  
ECU 1209 04 2 Fault at exhaust pressure sensor.  
ECU 1347 03 1 Signal from control valve of high-pressure fuel pump too high.  
ECU 1347 05 1 Fault in circuit of solenoid valve 1 of high-pressure fuel pump.  
ECU 1347 06 2 High-pressure fuel pump cannot develop the necessary pressure.  
ECU 1569 31 2 Engine protection - power derated due to other faults. This code occurs in conjunction with other diagnostic trouble codes.  
ECU 2000 13 1 Engine control unit security violation.  
ECU 2630 00 1 Aftercooler outlet temperature signal extremely high.  
ECU 2630 03 2 Aftercooler outlet temperature signal too high.  
ECU 2630 04 2 Aftercooler outlet temperature signal too low.  

 

ZX08994,00000AF -19-21SEP06-4/6

Control Unit SPN FMI Pri. Description  
ECU 2630 15 2 Aftercooler outlet temperature signal slightly high.  
ECU 2630 16 2 Aftercooler outlet temperature signal moderately high.  
ECU 2659 02 2 Data for mass flow rate of exhaust gas recirculation invalid.  
ECU 2659 15 2 Data for mass flow rate of exhaust gas recirculation slightly high.  
ECU 2659 17 2 Data for mass flow rate of exhaust gas recirculation slightly low.  
ECU 2790 16 2 Calculated outlet temperature of compressor moderately high.  
ECU 2791 2 2 Signal for position of exhaust gas recirculation valve invalid.  
ECU 2791 3 2 Signal for position of exhaust gas recirculation valve too high.  
ECU 2791 4 2 Signal for position of exhaust gas recirculation valve too low.  
ECU 2791 5 2 Current flow of signal for position of exhaust gas recirculation valve too high.  
ECU 2791 6 2 Current flow of signal for position of exhaust gas recirculation valve too low.  
ECU 2791 7 2 Exhaust gas recirculation valve fails to reach expected position.  
ECU 2791 13 2 Exhaust gas recirculation valve not calibrated.  
ECU 2791 14 1 Exhaust gas recirculation valve has switched off.  
ECU 2791 31 2 Calibration fault at exhaust gas recirculation valve.  
ECU 2795 07 2 Signal for position of variable turbocharger is not correct.  
ECU 2795 12 2 Actuating element of turbocharger with variable geometry (VGT) fails to reach expected position.  
ECU 3509 3 1 Sensor supply voltage no. 1 out of range high.  
ECU 3509 4 1 Sensor supply voltage no. 1 out of range low.  
ECU 3510 3 2 Sensor supply voltage no. 2 out of range high.  
ECU 3510 4 2 Sensor supply voltage no. 2 out of range low.  
ECU 3511 3 2 Sensor supply voltage no. 3 out of range high.  
ECU 3511 4 2 Sensor supply voltage no. 3 out of range low.  
ECU 3512 3 2 Sensor supply voltage no. 4 out of range high.  
ECU 3512 4 2 Sensor supply voltage no. 4 out of range low.  
ECU 3513 3 2 Sensor supply voltage no. 5 out of range high.  
ECU 3513 4 2 Sensor supply voltage no. 5 out of range low.  

 

ZX08994,00000AF -19-21SEP06-5/6

Control Unit SPN FMI Pri. Description  
ECU 64981 2 2 Signal for position of exhaust gas recirculation valve 2 invalid.  
ECU 64981 3 2 Signal for position of exhaust gas recirculation valve 2 too high.  
ECU 64981 4 2 Signal for position of exhaust gas recirculation valve 2 too low.  
ECU 64981 5 2 Current flow of signal for position of exhaust gas recirculation valve 2 too high.  
ECU 64981 6 2 Current flow of signal for position of exhaust gas recirculation valve 2 too low.  
ECU 64981 7 2 Exhaust gas recirculation valve 2 fails to reach expected position.  
ECU 64981 13 2 Exhaust gas recirculation valve 2 not calibrated.  
ECU 64981 14 2 Exhaust gas recirculation valve 2 has switched off.  
ECU 64981 31 2 Calibration fault at exhaust gas recirculation valve 2.  

 

ZX08994,00000AF -19-21SEP06-6/6