-16- DTC P Code _ DST-1 display Code explanation Reference 88 P0402 Excessive EGR rate The EGR system is abnormal. The EGR rate is higher than the standard value. Valve is detected through Air flow sen- sor to have seized in the fully open posi- tion 81 P0489 EGR solenoid valve 1 malfunc- tion EGR solenoid valve 1 is abnormal. There could be a solenoid valve malfunction, har- ness open circuit or ground short. 81 P0490 EGR solenoid valve 1 malfunc- tion EGR solenoid valve 1 is abnormal. There could be a solenoid valve malfunction or +B harness short 21 P0500 Vehicle speed sensor malfunction (LO) Cannot detect the pulses from the vehicle speed sensor.
There could be a sensor mal- function or harness abnormality. Open circuit 21 P0501 Vehicle speed sensor malfunction (HI) The pulses from the vehicle speed sensor are abnormal. There could be a sensor malfunc- tion or harness abnormality. Noise 42 P0510 Idling switch malfunction The idling switch is not functioning normally. While monitoring the vehicle conditions, check the ON/OFF judgment. 25 P0540 Pre-heat device malfunction The intake heater relay is abnormal. There could be a relay malfunction or harness abnor- mality. 97 P0545 Exhaust temperature sensor 1 malfunction (LO) Cannot detect the temperature normally. There could be a sensor malfunction or a har- ness ground short.
97 P0546 Exhaust temperature sensor 1 malfunction (HI) Cannot detect the temperature normally. There could be a sensor malfunction, harness open circuit or +B short. 3 P0605 Flash ROM abnormality ECU internal malfunction. Please replace the ECU. 3 P0606 CPU malfunction (hardware detection) ECU internal malfunction. Please replace the ECU. 3 P0907 CPU surveillance IC malfunction ECU internal malfunction. Please replace the ECU. 59 P0611 ECU charge circuit fault The voltage for actuating the injector is too low. Replace the ECU. 45 P0617 Starter switch malfunction The starter switch has shorted. While monitor- ing the vehicle conditions, check the ON/OFF judgment.
73 P0628 Supply pump solenoid valve 1 malfunction The supply pump solenoid valve 1 has a volt- age abnormality. There could be an open cir- cuit or ground short. PCV1, PCV1 & PCV2 (large)