LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saturn >> 2002 >> L300 >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Engine Performance - 3.0L DTCS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Performance - 3.0L DTCS

ENGINE PERFORMANCE - 3.0L DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
DTC P0030 HO2S HEATER CIRCUIT - BANK 1, SENSOR 1
DTC P0031 HO2S HEATER CIRCUIT - LOW VOLTAGE - BANK 1, SENSOR 1
DTC P0032 HO2S HEATER CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 1
DTC P0036 HO2S HEATER CIRCUIT - BANK 1, SENSOR 2
DTC P0037 HO2S HEATER CIRCUIT - LOW VOLTAGE - BANK 1, SENSOR 2
DTC P0038 HO2S HEATER CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 2
DTC P0050 HO2S HEATER CIRCUIT - BANK 2, SENSOR 1
DTC P0051 HO2S HEATER CIRCUIT - LOW VOLTAGE - BANK 2, SENSOR 1
DTC P0052 HO2S HEATER CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 1
DTC P0056 HO2S HEATER CIRCUIT - BANK 2, SENSOR 2
DTC P0057 HO2S HEATER CIRCUIT - LOW VOLTAGE - BANK 2, SENSOR 2
DTC P0058 HO2S HEATER CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 2
DTC P0101 MAF SYSTEM PERFORMANCE
DTC P0102 MAF SENSOR CIRCUIT - LOW SIGNAL/FREQUENCY
DTC P0103 MAF SENSOR CIRCUIT - HIGH SIGNAL/FREQUENCY
DTC P0107 MAP SENSOR CIRCUIT - LOW VOLTAGE
DTC P0108 MAP SENSOR CIRCUIT - HIGH VOLTAGE
DTC P0112 IAT SENSOR CIRCUIT - LOW VOLTAGE/HIGH TEMPERATURE
DTC P0113 IAT SENSOR CIRCUIT - HIGH VOLTAGE/LOW TEMPERATURE
DTC P0115 ECT SENSOR CIRCUIT
DTC P0116 ECT SENSOR CIRCUIT PERFORMANCE
DTC P0117 ECT SENSOR CIRCUIT - LOW VOLTAGE/HIGH TEMPERATURE
DTC P0118 ECT SENSOR CIRCUIT - HIGH VOLTAGE/LOW TEMPERATURE
DTC P0121 TP SENSOR NO. 1 CIRCUIT PERFORMANCE
DTC P0122 TP SENSOR NO. 1 CIRCUIT - LOW VOLTAGE
DTC P0123 TP SENSOR NO. 1 CIRCUIT - HIGH VOLTAGE
DTC P0128 ECT BELOW THERMOSTAT REGULATING TEMPERATURE
DTC P0130 HO2S CIRCUIT - BANK 1, SENSOR 1
DTC P0131 HO2S CIRCUIT - LOW VOLTAGE - BANK 1, SENSOR 1
DTC P0132 HO2S CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 1
DTC P0134 HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 1, SENSOR 1
DTC P0135 HO2S HEATER CIRCUIT PERFORMANCE - BANK 1, SENSOR 1
DTC P0136 HO2S CIRCUIT - BANK 1, SENSOR 2
DTC P0138 HO2S CIRCUIT - HIGH VOLTAGE - BANK 1, SENSOR 2
DTC P0139 HO2S CIRCUIT - SLOW RESPONSE - BANK 1, SENSOR 2
DTC P0140 HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 1, SENSOR 2
DTC P0141 HO2S HEATER CIRCUIT PERFORMANCE - BANK 1, SENSOR 2
DTC P0150 HO2S CIRCUIT - BANK 2, SENSOR 1
DTC P0151 HO2S CIRCUIT - LOW VOLTAGE - BANK 2, SENSOR 1
DTC P0152 HO2S CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 1
DTC P0154 HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 2, SENSOR 1
DTC P0155 HO2S HEATER CIRCUIT PERFORMANCE - BANK 2, SENSOR 1
DTC P0156 HO2S CIRCUIT - BANK 2, SENSOR 2
DTC P0158 HO2S CIRCUIT - HIGH VOLTAGE - BANK 2, SENSOR 2
DTC P0159 HO2S CIRCUIT - SLOW RESPONSE - BANK 2, SENSOR 2
DTC P0160 HO2S CIRCUIT - INSUFFICIENT ACTIVITY - BANK 2, SENSOR 2
DTC P0161 HO2S HEATER CIRCUIT PERFORMANCE - BANK 2, SENSOR 2
DTC P0171 FUEL TRIM SYSTEM LEAN - BANK 1
DTC P0172 FUEL TRIM SYSTEM RICH - BANK 1
DTC P0174 FUEL TRIM SYSTEM LEAN - BANK 2
DTC P0175 FUEL TRIM SYSTEM RICH - BANK 2
DTC P0201 INJECTOR NO. 1 CONTROL CIRCUIT
DTC P0202 INJECTOR NO. 2 CONTROL CIRCUIT
DTC P0203 INJECTOR NO. 3 CONTROL CIRCUIT
DTC P0204 INJECTOR NO. 4 CONTROL CIRCUIT
DTC P0205 INJECTOR NO. 5 CONTROL CIRCUIT
DTC P0206 INJECTOR NO. 6 CONTROL CIRCUIT
DTC P0221 TP SENSOR NO. 2 CIRCUIT PERFORMANCE
DTC P0222 TP SENSOR NO. 2 CIRCUIT - LOW VOLTAGE
DTC P0223 TP SENSOR NO. 2 CIRCUIT - HIGH VOLTAGE
DTC P0230 FUEL PUMP RELAY CONTROL CIRCUIT
DTC P0231 FUEL PUMP RELAY CONTROL CIRCUIT - LOW VOLTAGE
DTC P0232 FUEL PUMP RELAY CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0261 INJECTOR NO. 1 CONTROL CIRCUIT - LOW VOLTAGE
DTC P0262 INJECTOR NO. 1 CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0264 INJECTOR NO. 2 CONTROL CIRCUIT - LOW VOLTAGE
DTC P0265 INJECTOR NO. 2 CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0267 INJECTOR NO. 3 CONTROL CIRCUIT - LOW VOLTAGE
DTC P0268 INJECTOR NO. 3 CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0270 INJECTOR NO. 4 CONTROL CIRCUIT - LOW VOLTAGE
DTC P0271 INJECTOR NO. 4 CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0273 INJECTOR NO. 5 CONTROL CIRCUIT - LOW VOLTAGE
DTC P0274 INJECTOR NO. 5 CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0276 INJECTOR NO. 6 CONTROL CIRCUIT - LOW VOLTAGE
DTC P0277 INJECTOR NO. 6 CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0300 ENGINE MISFIRE DETECTED
DTC P0301, P0302, P0303, P0304, P0305, P0306 SPECIFIC CYLINDER MISFIRE DETECTED
DTC P0313 MISFIRE DETECTED WITH LOW FUEL
DTC P0324 KNOCK SENSOR MODULE CIRCUIT
DTC P0327 KNOCK SENSOR NO. 1 CIRCUIT - LOW INPUT
DTC P0328 KNOCK SENSOR NO. 1 CIRCUIT - HIGH INPUT
DTC P0332 KNOCK SENSOR NO. 2 CIRCUIT - LOW INPUT
DTC P0333 KNOCK SENSOR NO. 2 CIRCUIT - HIGH INPUT
DTC P0335 CRANKSHAFT POSITION SENSOR CIRCUIT
DTC P0341 CAMSHAFT POSITION SENSOR CIRCUIT PERFORMANCE
DTC P0342 CAMSHAFT POSITION SENSOR CIRCUIT - LOW VOLTAGE
DTC P0343 CAMSHAFT POSITION SENSOR CIRCUIT - HIGH VOLTAGE
DTC P0401 EGR FLOW INSUFFICIENT
DTC P0402 EGR FLOW EXCESSIVE
DTC P0403 EGR SOLENOID CONTROL CIRCUIT
DTC P0405 EGR POSITION SENSOR CIRCIUT - LOW VOLTAGE
DTC P0406 EGR POSITION SENSOR CIRCUIT - HIGH VOLTAGE
DTC P0421 WARM-UP CATALYST - LOW EFFICIENCY - BANK 1
DTC P0431 WARM-UP CATALYST - LOW EFFICIENCY - BANK 2
DTC P0440 EVAPORATIVE EMISSION SYSTEM
DTC P0442 EVAP SYSTEM - SMALL LEAK DETECTED
DTC P0443 EVAP PURGE SOLENOID CONTROL CIRCUIT
DTC P0444 EVAP PURGE SOLENOID CONTROL CIRCUIT - LOW VOLTAGE
DTC P0445 EVAP PURGE SOLENOID CONTROL CIRCUIT- HIGH VOLTAGE
DTC P0446 EVAP VENT SYSTEM PERFORMANCE
DTC P0447 EVAP VENT SOLENOID CONTROL CIRCUIT - LOW VOLTAGE
DTC P0448 EVAP VENT SOLENOID CONTROL CIRCUIT - HIGH VOLTAGE
DTC P0449 EVAP VENT SOLENOID CONTROL CIRCUIT
DTC P0451 EVAP FUEL TANK PRESSURE SENSOR CIRCUIT PERFORMANCE
DTC P0452 EVAP FUEL TANK PRESSURE SENSOR CIRCUIT - LOW VOLTAGE
DTC P0453 EVAP FUEL TANK PRESSURE SENSOR CIRCUIT - HIGH VOLTAGE
DTC P0455 EVAP SYSTEM GROSS LEAK DETECTED
DTC P0461 FUEL LEVEL SENSOR CIRCUIT PERFORMANCE
DTC P0462 FUEL LEVEL SENSOR CIRCUIT - LOW VOLTAGE
DTC P0463 FUEL LEVEL SENSOR CIRCUIT - HIGH VOLTAGE
DTC P0480 COOLING FAN CONTROL RELAY CIRCUIT NO. 1
DTC P0481 COOLING FAN CONTROL RELAY NO. 2 CIRCUIT
DTC P0500 VEHICLE SPEED CIRCUIT LOW INPUT (WITH ABS)
DTC P0506 IDLE SPEED LOW
DTC P0507 IDLE SPEED HIGH
DTC P0532 A/C REFRIGERANT PRESSURE SENSOR CIRCUIT - LOW VOLTAGE
DTC P0533 A/C REFRIGERANT PRESSURE SENSOR CIRCUIT - HIGH VOLTAGE
DTC P0560 SYSTEM VOLTAGE
DTC P0562 SYSTEM VOLTAGE LOW
DTC P0563 SYSTEM VOLTAGE HIGH
DTC P0571 CRUISE/BRAKE SWITCH CIRCUIT
DTC P0601 ECM MEMORY
DTC P0602 ECM NOT PROGRAMMED
DTC P0603 ECM MEMORY RESET
DTC P0604 ECM RAM
DTC P0606 ECM INTERNAL PERFORMANCE
DTC P0621 GENERATOR "L" TERMINAL CIRCUIT
DTC P0645 A/C CLUTCH RELAY CIRCUIT OPEN
DTC P0646 A/C CLUTCH RELAY CIRCUIT - LOW VOLTAGE
DTC P0647 A/C CLUTCH RELAY CIRCUIT - HIGH VOLTAGE
DTC P0719 BRAKE SWITCH CIRCUIT LOW VOLTAGE
DTC P0724 BRAKE SWITCH CIRCUIT HIGH VOLTAGE
DTC P1245 INTAKE PLENUM SWITCHOVER VALVE
DTC P1271 APP SENSORS NO. 1 & 2 CIRCUIT PERFORMANCE
DTC P1277 APP SENSOR NO. 1 CIRCUIT - LOW VOLTAGE
DTC P1278 APP SENSOR NO. 1 CIRCUIT - HIGH VOLTAGE
DTC P1282 APP SENSOR NO. 2 CIRCUIT - LOW VOLTAGE
DTC P1283 APP SENSOR NO. 2 CIRCUIT - HIGH VOLTAGE
DTC P1403 EGR POSITION CIRCUIT - LOW VOLTAGE
DTC P1405 EGR POSITION CIRCUIT - HIGH VOLTAGE
DTC P1406 EGR PINTLE POSITION ERROR
DTC P1510 THROTTLE CONTROL SYSTEM - IN LIMITATION
DTC P1511 THROTTLE CONTROL SYSTEM - LIMP HOME SYSTEM PERFORMANCE
DTC P1516 COMMAND VS. ACTUAL THROTTLE POSITION CORRELATION ERROR
DTC P1519 THROTTLE ACTUATOR CONTROL (TAC) MODULE
DTC P1523 THROTTLE RETURN PERFORMANCE
DTC P1526 TP SENSOR LEARN NOT DONE AFTER REPROGRAMMING
DTC P1530 THROTTLE CONTROL SYSTEM - AMPLIFIER ADJUSTMENT
DTC P1630 THEFT DETERRENT SYSTEM - ECM IN LEARN MODE
DTC P1631 THEFT DETERRENT SYSTEM - PASSWORD INCORRECT
DTC P1632 THEFT DETERRENT SYSTEM - FUEL DISABLED
DTC P1637 GENERATOR "L" TERMINAL CIRCUIT - LOW INPUT
DTC P1669 ABS UNIT EXPECTED
DTC P1780 MIL EXTERNAL REQUEST BY TCM
DTC P1845 TORQUE LIMIT MANAGEMENT