| Flash code | Scan code Hex type | Scan code DRS III type | Fault location | Probable cause |
| 11 | | | Crankshaft position (CKP) sensor/ camshaft position (CMP) sensor | Wiring, poor connection, air gap, timing belt, CKP sensor, CMP sensor |
| 85 | 133 | Timing belt jumped 1 tooth or more | Timing belt loose/jumped position |
| 90 | 157 | Crankshaft position (CKP) sensor/camshaft position (CMP) sensor intermittent signal | Wiring, poor connection, air gap, CKP sensor, CMP sensor |
| 28 | 40 | Crankshaft position (CKP) sensor no signal | Wiring, air gap, CKP sensor |
| 13 | 27 | 39 | Manifold absolute pressure (MAP) sensor | Wiring, hose connection(s), MAP sensor |
| 14 | | | Manifold absolute pressure (MAP) sensor input low/high | Wiring, MAP sensor |
| 24 | 36 | Manifold absolute pressure (MAP) sensor low input | Wiring short circuit to ground, MAP sensor |
| 25 | 37 | Manifold absolute pressure (MAP) sensorhigh input | Wiring short circuit to positive, MAP sensor |
| 87 | 135 | Manifold absolute pressure (MAP) sensorno 5 volt supply | Wiring, ECM |
| 92 | 146 | Manifold absolute pressure (MAP) sensor 5 volt output low | Wiring, MAP sensor |
| 15 | 23 | 35 | Vehicle speed sensor (VSS) -signal | Wiring, VSS |
| 16 | 38 | 59 | Knock sensor (KS) 1 -no signal | Wiring, KS incorrectly tightened, KS |
| 17 | | | Engine temperature -low for long period | Wiring, cooling system, coolant thermostat, ECT sensor |
| 21 | 33 | Engine temperature -low for long period | Wiring, cooling system, coolant thermostat, ECT sensor |
| 80 | 128 | Insufficient coolant temperature for closed loop fuel control | Wiring, cooling system, coolant thermostat, ECT sensor |
| 21 | | | Heated oxygen sensor (H02S) 1/2, bank 1-circuit malfunction/incorrect signal/voltage low/high | Wiring, fuel pressure, injector control, EVAP canister purge valve, compression,air filter blocked, H02S |
| 98 | 155 | Heated oxygen sensor (H02S) 1, bank 1 -low voltage | Wiring short circuit to ground, exhaust leak, H02S |
| 3E | 62 | Heated oxygen sensor (H02S) 1, bank 1 -high voltage | Wiring short circuit to positive, fuel pressure, injector control, EVAP canister purge valve, air filter blocked, H02S |
| 66 | 102 | Heated oxygen sensor (H02S) 1, bank 1 -slow response | Wiring, heating inoperative, H02S |
| 20 | 32 | Heated oxygen sensor (H02S) 1, bank 1 -no activity detected | Wiring open circuit, heating inoperative,H02S |
| 21 | 67 | 103 | Heated oxygen sensor (H02S) 1, bank 1 -heater control -circuit malfunction | Wiring, H02S |
| 9C | 156 | Heated oxygen sensor (HP2S) 2, bank 1 -low voltage | Wiring short circuit to ground, exhaust leak, H02S |
| 7E | 126 | Heated oxygen sensor (H02S) 2, bank 1 -high voltage | Wiring short circuit to positive, catalytic converter, H02S |
| 81 | 129 | Heated oxygen sensor (H02S) 2, bank 1 no activity detected | Wiring, heating inoperative, H02S |
| 69 | 105 | Heated oxygen sensor (H02S) 2, bank 1,heater control -circuit malfunction | Wiring, H02S |
| 22 | | | Engine coolant temperature (ECT)sensor voltage low/high | Wiring, coolant thermostat, ECTsensor |
| 1E | 30 | Engine coolant temperature (ECT)sensor low input | Wiring short circuit to ground, coolant thermostat, ECT sensor |
| 1F | 31 | Engine coolant temperature (ECT)sensor high input | Wiring open circuit/short circuit to positive, coolant thermostat, ground wire defective, ECT sensor |
| 23 | | | Intake air temperature (IAT) sensor voltage low/high | Wiring, IAT sensor |
| 39 | 57 | Intake air temperature (IAT) sensor low input | Wiring short circuit to ground, IAT sensor |
| 3A | 58 | Intake air temperature (IAT) sensor highinput | Wiring open circuit/short circuit to positive, ground wire defective, IAT sensor |
| 24 | | | Throttle position (TP) sensor -voltagelow/high | Wiring, accelerator cable adjustment, TP sensor |
| 84 | 132 | Throttle position (TP) sensor -range/ performance problem | Wiring, accelerator cable adjustment, TP sensor |
| 1A | 26 | Throttle position (TP) sensor -low input | Wiring short circuit to ground, TP sensor |
| 18 | 27 | Throttle position (TP) sensor -high input | Wiring short circuit to positive, TP sensor |
| 88 | 136 | Throttle position (TP) sensor no 5 voltsupply | Wiring, TP sensor, ECM |
| 25 | | | Idle air control (lAC) valve | Wiring open/short circuit, air leak, lAC valve |
| 19 | 25 | Idle speed control (ISC) system malfunction | Wiring open/short circuit, lAC valve |
| 8A | 138 | Idle speed control (ISC) system -rpm lower/higher than expected | Wiring, air leak, throttle valve tight/ sticking, lAC valve |
| 27 | | | Injector -circuit malfunction | Wiring, injector |
| 15 | 21 | Injector 1 -circuit malfunction | Wiring, injector |
| 14 | 20 | Injector 2 -circuit malfunction | Wiring, injector |
| 13 | 19 | Injector 3 -circuit malfunction | Wiring, injector |
| 3D | 61 | Injector 4 -circuit malfunction | Wiring, injector |
| 31 | | | Evaporative emission (EVAP) canister purge valve -open/short circuit | Wiring, EVAP canister purge valve |
| 71 | 113 | Evaporative emission (EVAP) system -incorrect flow detected | Hose connection(s), intake leak, EVAP canister purge valve |
| AO | 160 | Evaporative emission (EVAP) system -small leak detected | Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve |
| 12 | 18 | Evaporative emission (EVAP) canister purge valve -circuit malfunction | Wiring open/short circuit, EVAP canister purge valve |
| A1 | 161 | Evaporative emission (EVAP) system -large leak detected | Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve |
| BB | 187 | Evaporative emission (EVAP) system blockage detected | Hose connection(s), hose blocked/ trapped, EVAP canister |
| 88 | 184 | Evaporative emission (EVAP) leak detection pump -pressure switch | Wiring, hose leaklblockage, EVAP leak detection pump |
| 87 | 183 | Evaporative emission (EVAP) leak detection pump solenoid | Wiring open/short circuit, hose leakl blockage, EVAP leak detection pump solenoid |
| 32 | | | Exhaust gas recirculation (EGR) solenoid/system -circuit malfunction | Wiring, hoses, EGR solenoid |
| 2E | 46 | Exhaust gas recirculation (EGR) system -insufficient flow detected | Hose leaklblockage, wiring, EGR valve, EGR solenoid |
| 11 | 17 | Exhaust gas recirculation (EGR) circuit malfunction | Wiring open/short circuit, EGR solenoid |
| 33 | 10 | 16 | Ale compressor clutch relay -voltage low/high | Wiring open/short circuit, AlC compressor clutch relay |
| 35 | | | Engine coolant blower motor relay/ Alecondenser blower motor relay -low/high speed | Wiring open/short circuit, engine coolant blower motor relay -low/ high speed |
| 8B | 139 | Engine coolant blower motor relay -high speed -circuit malfunction | Wiring open/short circuit, engine coolant blower motor relay -high speed |
| 50 | 93 | Ale condenser blower motor relay -high speed | Wiring open/short circuit, engine coolant blower motor relay -high speed |
| 5C | 92 | Engine coolant blower motor relay low speed | Wiring open/short circuit, engine coolant blower motor relay -low speed |
| 37 | 72 | 114 | Park/neutral position (PNP) switch input circuit malfunction | Wiring, PNP switch, ECMfTCM |
| 41 | OB | 11 | Alternator, field control -circuit malfunction | Wiring openlshort circuit, alternator,battery |
| 42 | | | Fuel pump relaylengine control relayl fuel level sensor -circuit malfunction | Wiring openlshort circuit, fuel pump relay,engine control relay, fuel level sensor |
| 65 | 101 | Fuel pump relay | Wiring openlshort circuit, fuel pump relay |
| OA | 10 | Engine control relay | Wiring openlshort circuit, engine control relay |
| 2C | 44 | Engine control relay | Wiring open circuit, engine control relay |
| 95 | 149 | Fuel level sensor | Wiring open circuit, fuel level sensor |
| 96 | 150 | Fuel level sensor | Wiring short circuit to positive, fuel level sensor |
| 97 | 151 | Fuel level sensor | Wiring, fuel level sensor |
| 43 | | | Randomlmultiple cylinder(s) -misfiredetected | Wiring, spark plug(s), HT lead(s),injector(s), ignition coil(s), low compression |
| 6A | 106 | Randomlmultiple cylinder(s) -misfiredetected | Wiring, spark plug(s), HT lead(s),injector(s), ignition coil(s), low compression |
| 6B | 107 | Cylinder 1 -misfire detected | Wiring, engine mechanical fault,ignitionlfuel system, injector |
| 6C | 108 | Cylinder 2 -misfire detected | Wiring, engine mechanical fault,ignitionlfuel system, injector |
| 60 | 109 | Cylinder 3 -misfire detected | Wiring, engine mechanical fault,ignitionlfuel system, injector |
| 6E | 110 | Cylinder 4 -misfire detected | Wiring, engine mechanical fault, ignitionlfuel system, injector |
| 2B | 43 | Ignition coil A, primarylsecondary circuitmalf~mction | Wiring, ignition coil |
| 2A | 42 | Ignition coil B, primarylsecondary circuit malfunction | Wiring, ignition coil |
| 44 | | | Ambientlbattery temperature sensorvoltage lowlhigh | Wiring, ambientlbattery temperature sensor |
| 9A | 154 | Ambientlbattery temperature sensorvoltage high | Wiring, ambientlbattery temperature sensor |
| 99 | 153 | Ambientlbattery temperature sensor voltage low | Wiring, ambientlbattery temperature sensor |
| 47 | 71 | Ambientlbattery temperature sensorrangelperformance problem | Wiring, ambientlbattery temperature sensor |
| 45 | 89 | 137 | Transmission control system -malfunction | Wiring, transmission control module (TCM) |
| 46 | 6 | 6 | Alternator -voltage high | Wiring, battery, alternator |
| 47 | 5 | 5 | Alternator -voltage low | Wiring, battery, alternator drive belt, alternator |
| 51 | 77 | 119 | System too lean, bank 1 | Intake/exhaust leak, MAP sensor, fuel pressure/pump, injector(s), heated oxygen sensor (H02S) |
| 52 | 76 | 118 | System too rich, bank 1 | Intake blocked, EVAP canister purge valve, fuel pressure, EGR system,injector(s), heated oxygen sensor (H02S) |
| 53 | | | . Engine control module (ECM)/CAN data bus -intemal fault/malfunction | Wiring, connected system, ECM |
| 2 | 2 | Engine control module (ECM) -internal fault | ECM |
| 44 | 68 | CAN data bus -malfunction | Wiring, connected system, ECM |
| 54 | 1 | 1 | Camshaft position (CMP) sensor no signal | Wiring, CMP sensor |
| 62 | 30 | 48 | Engine control module (ECM) EEPROM error | ECM |
| 63 | 31 | 49 | Engine control module (ECM) EEPROM error | ECM |
| 64 | 70 | 112 | Catalytic converter, bank 1 -efficiency below threshold , | Wiring, exhaust leak, catalytic converter, H02S 2 |
| 65 | 73 | 115 | Power steering pressure (PSP) switch -range/performance problem | Wiring, PS system, PSP switch |
| 66 | 60 | 96 | CAN data bus, transmission control module (TCM) -no signal | Wiring, TCM |