| Flash code | Scan code DRB 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 |
| 133 | Timing belt jumped 1 tooth or more | Timing belt loose/jumped position |
| 157 | Crankshaft position (CKP) sensor/camshaft position (CMP) sensor -intermittent signal | Wiring, poor connection, air gap, CKP sensor, CMP sensor |
| 40 | Crankshaft position (CKP) sensor no signal | Wiring, air gap, CKP sensor |
| 13 | 39 | Manifold absolute pressure (MAP) sensor | Wiring, hose connection(s), MAP sensor |
| 14 | | Manifold absolute pressure (MAP) sensor input low/high | Wiring, MAP sensor |
| 36 | Manifold absolute pressure (MAP) sensor lowinput | Wiring short circuit to ground, MAP sensor |
| 37 | Manifold absolute pressure (MAP) sensor highinput | Wiring short circuit to positive, MAP sensor |
| 135 | Manifold absolute pressure (MAP) sensor no 5 volt supply | Wiring, ECM |
| 146 | Manifold absolute pressure (MAP) sensor 5 volt output low | Wiring. MAP sensor |
| 15 | 35 | Vehicle speed sensor (VSS) ‘-signal | Wiring, VSS |
| 16 | 59 | Knock sensor (KS) 1 -no signal | Wiring, KS incorrectly tightened, KS |
| 17 | | Engine temperature -low for long period | Wiring, cooling system, coolant thermostat, ECl sensor |
| 33 | Engine temperature -low for long period | Wiring, cooling system, coolant thermostat, ECT sensor |
| 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/incorr~ct signal/voltage low/high | Wiring, fuel pressure, injector control, EVAP canister purge valve, compression, air filter blocked, H02S |
| 155 | Heated oxygen sensor (H02S) 1. bank 1 low voltage | Wiring short circuit to ground, exhaust leak, H02S |
| 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 |
| 102 | Heated oxygen sensor (H02S) 1. bank 1 slow response | Wiring, heating inoperative, H02S |
| 32 | Heated oxygen sensor (H02S) 1. bank 1 no activity detected | Wiring open circuit, heating inoperative, H02S |
| 103 | Heated oxygen sensor (H02S) 1. bank 1 heater control -circuit malfunction | Wiring, H02S |
| 156 | Heated oxygen sensor (H02S) 2. bank 1 low voltage | Wiring short circuit to ground, exhaust leak, H02S |
| 126 | Heated oxygen sensor (H02S) 2. bank 1 high voltage | Wiring short circuit to positive, catalytic converter, H02S |
| 129 | Heated oxygen sensor (H02S) 2. bank 1 no activity detected | Wiring, heating inoperative, H02S |
| 105 | Heated oxygen sensor (H02S) 2, bank 1.heater control -circuit malfunction | Wiring, H02S |
| 104 | Heated oxygen sensor (H02S) 2. bank 1 slow response | Wiring, heating inoperative, H02S |
| 22 | | Engine coolant temperature (ECT) sensor voltage low/high | Wiring, coolant thermostat, ECT sensor |
| 30 | Engine coolant temperature (ECT) sensor lowinput | Wiring short circuit to ground, coolant thermostat, ECT sensor |
| 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 |
| 57 | Intake air temperature (IAT) sensor -low input | Wiring short circuit to ground, IAT sensor |
| 58 | Intake air temperature (IAT) sensor -high input | Wiring open circuit/short circuit to positive,ground wire defective, IATsensor |
| 24 | | Throttle position (TP) sensor -voltage low/ high | Wiring, accelerator cable adjustment, TP sensor |
| 132 | Throttle position (TP) sensor -range/ performance problem | Wiring, accelerator cable adjustment, TP sensor |
| 26 | Throttle position (TP) sensor -low input | Wiring short circuit to ground, TP sensor |
| 27 | Throttle position (TP) sensor -high input | Wiring short circuit to positive, TP sensor |
| 136 | Throttle position (TP) sensor no 5 volt supply | Wiring, TP sensor, ECM |
| 25 | | Idle air control (lAC) valve | Wiring open/short circuit, air leak, lAC valve |
| 25 | Idle speed control (ISC) system -malfunction | Wiring open/short circuit, lAC valve |
| 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 |
| 21 | Injector 1 -circuit malfunction | Wiring, injector |
| 20 | Injector 2 -circuit malfunction | Wiring, injector |
| 19 | Injector 3 -circuit malfunction | Wiring, injector |
| 61 | Injector 4 -circuit malfunction | Wiring, injector |
| 31 | | Evaporative emission (EVAP) canister purge valve -open/short circuit | Wiring, EVAP canister purge valve |
| 113 | Evaporative emission (EVAP) system incorrect flow detected | Hose connection(s), intake leak, EVAP canister purge valve |
| 160 | Evaporative emission (EVAP) system -small leak detected | Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve |
| 18 | Evaporative emission (EVAP) canister purge valve -circuit malfunction | Wiring open/short circuit, EVAP canister purge valve |
| 161 | Evaporative emission (EVAP) system -large leak detected | Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve |
| 31 | 187 | Evaporative emission (EVAP) system blockage detected | Hose connection(s), hose blocked/ trapped, EVAP canister |
| 184 | Evaporative emission (EVAP) leak detection pump -pressure switch | Wiring, hose leak/blockage, EVAP leak detection pump |
| 183 | Evaporative emission (EVAP) leak detection pump solenoid | Wiring open/short circuit, hose leak/ blockage, EVAP leak detection pump solenoid |
| 32 | | Exhaust gas recirculation (EGR) solenoid/ system -circuit malfunction | Wiring, hoses, EGR solenoid |
| 46 | Exhaust gas recirculation (EGR) systeminsufficient flow detected | Hose leak/blockage, wiring, EGR valve, EGR solenoid |
| 17 | Exhaust gas recirculation (EGR) -circuit malfunction | Wiring open/short circuit, EGR solenoid |
| 33 | 16 | Ale compressor clutch relay -voltage lowl high | Wiring open/short circuit, Ale compressor clutch relay |
| 35 | | Engine coolant blower motor relayl Alecondenser blower motor relay low/high speed | Wiring open/short circuit, engine coolant blower motor relay -low/high speed |
| 139 | Engine coolant blower motor relay -high speed -circuit malfunction | Wiring Wiring open/short circuit, engine coolant blower motor relay -high speed |
| 93 | Ale condenser blower motor relay -high speed | Wiring open/short circuit, engine coolant blower motor relay -high speed |
| 92 | Engine coolant blower motor relay -low speed | Wiring open/short circuit, engine coolant blower motor relay -low speed |
| 37 | 114 | Park/neutral position (PNP) switch -input circuit malfunction | Wiring, PNP switch, ECMITCM |
| 41 | 11 | Alternator, field control -circuit malfunction | Wiring open/short circuit, alternator, battery |
| 42 | | Fuel pump relay/engine control relay/fuel level sensor -circuit malfunction | Wiring open/short circuit, fuel pump relay, engine control relay, fuel level sensor |
| 101 | Fuel pump relay | Wiring open/short circuit, fuel pump relay |
| 10 | Engine control relay | Wiring open/short circuit, engine control relay |
| 44 | Engine control relay | Wiring open circuit, engine control relay |
| 149 | Fuel level sensor | Wiring open circuit, fuel level sensor |
| 150 | Fuel level sensor | Wiring short circuit to positive, fuel level sensor |
| 151 | Fuel level sensor | Wiring, fuel level sensor |
| 43 | | Random/multiple cylinder(s) -misfire detected | Wiring, spark plug(s), HT lead(s), injector(s), ignition coil(s), low compression |
| 106 | Random/multiple cylinder(s) -misfire detected | Wiring, spark plug(s), HT lead(s), injector(s), ignition coil(s), low compression |
| 43 | 107 | Cylinder 1 -misfire detected | Wiring, engine mechanical fault, ignition/ fuel system, injector |
| 108 | Cylinder 2 -misfire detected | Wiring, engine mechanical fault, ignition/ fuel system, injector |
| 109 | Cylinder 3 -misfire detected | Wiring, engine mechanical fault, ignition/ fuel system, injector |
| 110 | Cylinder 4 -misfire detected | Wiring, engine mechanical fault, ignition/ fuel system, injector |
| 43 | Ignition coil A. primary/secondary -circuit malfunction | Wiring, ignition coil |
| 42 | Ignition coil B. primary/secondary -circuitmalfunction | Wiring, ignition coil |
| 44 | | Ambient/battery temperature sensor voltage low/high | Wiring, ambient/battery temperature sensor |
| 154 | Ambient/battery temperature sensor voltage high | Wiring, ambient/battery temperature sensor |
| 153 | Ambient/battery temperature sensor voltage low | Wiring, ambient/battery temperature sensor |
| 71 | Ambient/battery temperature sensor -range/ performance problem | Wiring, ambient/battery temperature sensor |
| 45 | 137 | Transmission control system -malfunction | Wiring, transmission control module (TCM) |
| 46 | 6 | Alternator -voltage high | Wiring, battery, alternator |
| 47 | 5 | Altemator -voltage low | Wiring, battery, alternator drive belt, alternator |
| 51 | 119 | System too lean. bank 1 | Intake/exhaust leak, MAP sensor, fuelpressure/pump, injector(s), heated oxygen sensor (H02S) |
| 52 | 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 -internal fault/malfunction | Wiring, connected system, ECM |
| 2 | Engine control module (ECM) -internal fault | ECM |
| 68 | CAN data bus -malfunction | Wiring, connected system, ECM |
| 54 | 1 | Camshaft position (CMP) sensor -no signal | Wiring, CMP sensor |
| 62 | 48 | Engine control module (ECM) -EEPROM error | ECM |
| 63 | 49 | Engine control module (ECM) -EEPROM error | ECM |
| 64 | 112 | Catalytic converter, bank 1 -efficiency below threshold | Wiring, exhaust leak, catalytic converter, H0252 |
| 65 | 115 | Power steering pressure (PSP) switchrange/performance problem | Wiring, PS system, PSP switch |
| 66 | 96 | CAN data bus, transmission control module (TCM) -no signal | Wiring, TCM |