| TIBURON(GK) >2004 > G 2.7 DOHC > Fuel System > Engine Control System>Description and Operation |

INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES (FOR 2.7 V6)
DTC NO. | CONTENT | Memory | MIL
P0101 | Mass Air Flow Circuit Range/performance Problem | O | O
P0102 | Mass Air Flow Circuit Low Input | O | O
P0103 | Mass Air Flow Circuit High Input | O | O
P0112 | Intake Air Temperature Circuit Low Input | O | O
P0113 | Intake Air Temperature Circuit High Input | O | O
P0116 | Engine Coolant Temperature Sensor Circuit Range/Performance Problem | O | O
P0117 | Engine Coolant Temperature Circuit Low Input | O | O
P0118 | Engine Coolant Temperature Circuit High Input | O | O
P0119 | Engine Coolant Temperature Circuit Intermittent | O | O
P0121 | Throttle Position Sensor Circuit Range/Performance Problem | O | O
P0122 | Throttle Position Sensor Circuit Low Input | O | O
P0123 | Throttle Position Sensor Circuit High Input | O | O
P0125 | Insufficient Coolant Temperature For Closed Loop Fuel Control | O | O
P0128 | Coolant thermostat stuck | O | O
P0131 | HO2S Circuit Low Input (Bank 1, Sensor 1) | O | O
P0132 | HO2S Circuit High Input (Bank 1, Sensor 1) | O | O
P0133 | HO2S Circuit Slow Responsive (Bank 1, Sensor 1) | O | O
P0134 | HO2S Circuit No Activity Detected (Bank 1, Sensor 1) | O | O
P0030 | HO2S Heater Control Circuit (Bank 1, Sensor 1) | O | O
P0031 | HO2S Heater Circuit Low (Bank 1, Sensor 1) | O | O
P0032 | HO2S Heater Circuit High (Bank 1, Sensor 1) | O | O
P0137 | HO2S Circuit Low Input (Bank 1, Sensor 2) | O | O
P0138 | HO2S Circuit Low Input (Bank 1, Sensor 2) | O | O
P0140 | HO2S Circuit No Activity Detected (Bank 1, Sensor 2) | O | O
P0037 | HO2S Heater Circuit Low (Bank 1, Sensor 2) | O | O
P0038 | HO2S Heater Circuit High (Bank 1, Sensor 2) | O | O
P0151 | HO2S Circuit Low Input (Bank 2, Sensor 1) | O | O
P0152 | HO2S Circuit High Input (Bank 2, Sensor 1) | O | O
P0153 | HO2S Circuit Slow Responsive (Bank 2, Sensor 1) | O | O
P0154 | HO2S Circuit No Activity Detected (Bank 2, Sensor 1) | O | O
P0050 | HO2S Heater Control Circuit (Bank 2, Sensor 1) | O | O
P0051 | HO2S Heater Circuit Low (Bank 2, Sensor 1) | O | O
P0052 | HO2S Heater Circuit High (Bank 2, Sensor 1) | O | O
P0157 | HO2S Circuit Low Input (Bank 2, Sensor 2) | O | O
P0158 | HO2S Circuit High Input (Bank 2, Sensor 2) | O | O
P0160 | HO2S Circuit No Activity Detected (Bank 2, Sensor 2) | O | O
P0057 | HO2S Heater Circuit Low (Bank 2, Sensor 2) | O | O
P0058 | HO2S Heater Circuit High (Bank 2, Sensor 2) | O | O
P0171 | Fuel System Too Lean (Bank 1) | O | O
P0172 | Fuel System Too Rich (Bank 1) | O | O
P0174 | Fuel System Too Lean (Bank 2) | O | O
P0175 | Fuel System Too Rich (Bank 2) | O | O
P0230 | Fuel Pump Circuit Malfunction | O | X
P0261 | Injector Circuit Low Input (Cylinder -1) | O | O
P0264 | Injector Circuit Low Input (Cylinder -2) | O | O
P0267 | Injector Circuit Low Input (Cylinder -3) | O | O
P0270 | Injector Circuit Low Input (Cylinder -4) | O | O
P0273 | Injector Circuit Low Input (Cylinder -5) | O | O
P0276 | Injector Circuit Low Input (Cylinder -6) | O | O
P0262 | Injector Circuit High Input (Cylinder -1) | O | O
P0265 | Injector Circuit High Input (Cylinder -2) | O | O
P0268 | Injector Circuit High Input (Cylinder -3) | O | O
P0271 | Injector Circuit High Input (Cylinder -4) | O | O
P0274 | Injector Circuit High Input (Cylinder -5) | O | O
P0277 | Injector Circuit High Input (Cylinder -6) | O | O
P0300 | Random Misfire Detected | O | O
P0301 | Misfire Detected (Cylinder -1) | O | O
P0302 | Misfire Detected (Cylinder -2) | O | O
P0303 | Misfire Detected (Cylinder -3) | O | O
P0304 | Misfire Detected (Cylinder -4) | O | O
P0305 | Misfire Detected (Cylinder -5) | O | O
P0306 | Misfire Detected (Cylinder -6) | O | O
P0325 | Knock Sensor Circuit Malfunction (Bank 1) | O | X
P0330 | Knock Sensor Circuit Malfunction (Bank 2) | O | X
P0335 | Crankshaft Position Sensor Circuit Malfunction | O | O
P0340 | Camshaft Position Sensor Circuit Malfunction | O | O
P0420 | Main catalyst efficiency deterioration (Bank 1) | O | O
P0430 | Main catalyst efficiency deterioration (Bank 2) | O | O
P0441 | EVAP Emission Control System Incorrect Purge Flow | O | O
P0442 | EVAP Emission Control System Small Leak (1 mm) | O | O
P0444 | EVAP Emission Control System Purge Control Valve Circuit Open | O | O
P0445 | EVAP Emission Control System Purge Control Valve Circuit Shorted | O | O
P0449 | EVAP Emission Control System Vent Valve/Solenoid Circuit | O | O
P0447 | EVAP Emission Control System Vent Circuit Open | O | O
P0448 | EVAP Emission Control System Vent Circuit Shorted | O | O
P0451 | EVAP Emission Control System Pressure Sensor Range/Performance Problem | O | O
P0452 | EVAP Emission Control System Pressure Sensor Low Input | O | O
P0453 | EVAP Emission Control System Pressure Sensor High Input | O | O
P0454 | Evaporative Emission Control System - Pressure Sensor Intermittent | O | O
P0455 | EVAP Emission Control System - Large Leak | O | O
P0456 | Evaporative Emission Control System - Small Leak Detected (0.5mm) | O | O
P0461 | Fuel Level Sensor Circuit Range/Performance | O | O
P0462 | Fuel Level Sensor Circuit Low Input | O | O
P0463 | Fuel Level Sensor Circuit High Input | O | O
P0464 | Fuel Level Sensor Circuit Intermittent | O | O
P0501 | Vehicle Speed Sensor Range/Performance | O | O
P0506 | Idle Control System Rpm Lower than Expected | O | O
P0507 | Idle Control System rpm Higher than Expected | O | O
P1134 | HO2S Circuit - Transition Switch Malfunction/Slip (Bank 1, Sensor 1) | O | O
P1154 | HO2S Circuit - Transition Switch Malfunction/Slip (Bank 2, Sensor 1) | O | O
P1166 | Lambda Bank Control Limit (Bank 1) | O | O
P1167 | Lambda Bank Control Limit (Bank 2) | O | O
P0036 | HO2S Heater Control Circuit (Bank 1, Sensor 2) | O | O
P0056 | HO2S Heater Control Circuit (Bank 2, Sensor 2) | O | O
P1372 | Segment Time Acquisition Incorrect | O | X
P1505 | Idle Speed Actuator Signal Low of Coil #1 | O | O
P1506 | Idle Speed Actuator Signal High of Coil #1 | O | O
P1507 | Idle Speed Actuator Signal Low of Coil #2 | O | O
P1508 | Idle Speed Actuator Signal High of Coil #2 | O | O
P1521 | Power Steering Switch Malfunction | O | X
P1529 | TCU Request for MIL ON/Freeze Frame to ECU via CAN | O | O
P1602 | Serial Communication Problem with TCU (Timeout) | O | O
P0605 | Internal CONTROL module ROM error | O | O
P0560 | System Voltage Malfunction | O | X
P0562 | System Voltage Low | O | O
P0563 | System Voltage High | O | O
P0650 | Malfunction Indication Lamp (MIL) Control Circuit Malfunction | O | X
P1624 | Cooling Fan Relay Circuit Malfunction (LOW) | O | X
P1625 | Cooling Fan Relay Circuit Malfunction (HIGH) | O | X
TROUBLE AREA RELATED TO DTC
Check items for each diagnostic item do not list all probable causes.
DTC No. | Diagnostic items | Trouble area
P0101 | Mass Air Flow Circuit Range/performance Problem |
• | Dirty air cleaner
• | Oil cap or dipstick missing or not installed correctly
• | Air leak in intake system
• | Contaminated, deteriorated or damaged mass air flow sensor
• | Faulty mass air flow sensor or throttle position sensor
• | Poor connections between ECM and MAFS or TPS
If any codes relating to MAFS are present, do all repairs associated with them before proceeding with this troubleshooting area.
P0102 | Mass Air Flow Circuit Low Input |
• | Short to ground between MAFS and ECM
• | Signal line open between MAFS and ECM
• | Faulty MAFS
P0103 | Mass Air Flow Circuit High Input |
• | Short to Battery between MAFS and ECM
• | Ground open between MAFS and EGI main relay
• | Ground open or Poor connections between open or short to battery between MAFSand ECM
• | Faulty MAFS
P0112 | Intake Air Temperature Circuit Low Input |
• | Short to ground between IAT sensor and ECM
• | Short between IAT sensor wires
• | Faulty IAT sensor
P0113 | Intake Air Temperature Circuit High Input |
• | Open or short to battery between IAT sensor and ECM
• | Faulty IAT sensor
P0115 | Engine Coolant Temperature Circuit Malfunction |
• | Open or short to battery between ECTS and ECM
• | Short to ground between ECTS and ECM
• | Short between ECTS wires
• | Faulty ECTS
P0116 | Engine Coolant Temperature Sensor Circuit Range/Performance Problem |
• | After engine start-up, the measured coolant temperature shows no variation after detecting the calculated coolant temperature variation (engine coolant temperature sensor input is stuck.)
• | Poor connections between ECT sensor and ECM
• | Misplaced, loose or corroded terminals
• | Foreign materials fouled ECTS
• | Faulty ECTS
If any codes relating to ECTS are present, do all repairs associated with them before proceeding with this troubleshooting area.
P0117 | Engine Coolant Temperature Circuit Low Input |
• | Short to ground between ECTS and ECM
• | Short between ECTS wires
• | Faulty ECTS
P0118 | Engine Coolant Temperature Circuit High Input |
• | Open or short to battery between ECTS and ECM
• | Faulty ECTS
P0119 | Engine Coolant Temperature Circuit Intermittent |
• | Poor connections between ECTS and ECM
• | Misplaced, loose or corroded terminals
• | Foreign materials fouled ECTS
P0121 | Throttle Position Sensor Circuit Range/Performance Problem |
• | Poor connections between TPS and ECM
• | Misplaced, loose or corrodes terminals
• | Contaminated, deteriorated TPS
• | Open or short between TPS 5V reference and ECM
• | Open or short between TPS signal and ECM
• | Short between TPS wires
• | Faulty TPS
P0122 | Throttle Position Sensor Circuit Low Input |
• | Short to GND between TPS and ECM
• | Open short to GND between TPS and ECM
• | Short to RND between ECM and fuel tank pressure sensor (FTPS)
• | Faulty TPS or FTPS
P0123 | Throttle Position Sensor Circuit High Input |
• | Open or short to battery between TPS and ECM
• | Open between and ECM
• | Faulty TPS
P0125 | Insufficient Coolant Temperature For Closed Loop Fuel Control |
• | After engine start-up, the elapsed time before feedback operation is initiated is too long (engine coolant temperature sensor input is insufficient for closed loop operation)
• | Poor connections between ECT sensor and ECM
• | Faulty ECTS
• | Thermostat
P0128 | Coolant thermostat stuck |
• | Thermostat stuck opened
P0131 | HO2S Circuit Low Input (Bank 1, Sensor 1) |
• | Short to GND between HO2S and ECM
• | Faulty front HO2S
P0132 | HO2S Circuit High Input (Bank 1, Sensor 1) |
• | Short to battery between HO2S and ECM
• | Faulty front HO2S
P0133 | HO2S Circuit Slow Responsive (Bank 1, Sensor 1) |
• | Front and rear HO2S connections reversed
• | Faulty fuel delivery system
• | Leak in intake system
• | Leak in exhaust system
• | Faulty MAFS ground circuit
• | Faulty HO2S
If any misfire, purge solenoid valve, MAFS or HO2S heater codes are present,do all repairs associated with those codes before proceeding with this trouble area.
P0134 | HO2S Circuit No Activity Detected (Bank 1, Sensor 1) |
• | Contaminated, deteriorated or aged HO2S
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
If any misfire, purge solenoid valve or HO2S heater codes are present, do all repairs associated with those codes before proceeding this trouble area.
P0135 | HO2S Heater Circuit Malfunction (Bank 1, Sensor 1) |
• | Blown or missing HO2S fuse
• | Short to battery between front HO2S and ECM
• | Open between front HO2S and ECM
• | Faulty front HO2S
P0030 | HO2S Heater Control Circuit (Bank 1, Sensor 1) |
• | Contaminated, deteriorated or aged HO2S
• | Heater Resistance out of Reasonable Range
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
P0031 | HO2S Heater Circuit Low (Bank 1, Sensor 1) |
• | Blown or mission HO2S fuse
• | Open or short to GND between HO2S and ECM
• | Faulty HO2S
P0032 | HO2S Heater Circuit High (Bank 1, Sensor 1) |
• | Short to battery between HO2S and ECM
• | Faulty HO2S
P0136 | HO2S Circuit Malfunction (Bank 1, Sensor 2) |
• | Short between rear HO2S and ECM
• | Faulty rear HO2S
P0137 | HO2S Circuit Low Input (Bank 1, Sensor 2) |
• | Short to GND between HO2S and ECM
• | Faulty front HO2S
P0138 | HO2S Circuit Low Input (Bank 1, Sensor 2) |
• | Open or short to battery between HO2S and ECM
• | Faulty front HO2S
P0139 | HO2S Circuit Slow Responsive (Bank 1, Sensor 2) |
• | Front and rear HO2S connections reversed
• | Faulty fuel delivery system
• | Leak in intake system
• | Leak in exhaust system
• | Faulty MAFS ground circuit
• | Faulty HO2S
If any misfire, purge solenoid valve, MAFS or HO2S heater codes are present,do all repairs associated with those codes before proceeding with this troublearea.
P0140 | HO2S Circuit No Activity Detected (Bank 1, Sensor 2) |
• | Contaminated, deteriorated or aged HO2S
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
If any misfire, purge solenoid valve or HO2S heater codes are present, do all repairs associated with those codes before proceeding with this trouble area.
P0141 | HO2S Heater Circuit Malfunction (Bank 1, Sensor 2) |
• | Blown or missing HO2S fuse
• | Short to battery between rear HO2S and ECM
• | Open between rear HO2S and ECM
• | Faulty rear HO2S
P0037 | HO2S Heater Circuit Low (Bank 1, Sensor 2) |
• | Blown or missing HO2S fuse
• | Open or short to GND between HO2S and ECM
• | Faulty HO2S
P0038 | HO2S Heater Circuit High (Bank 1, Sensor 2) |
• | Short to battery between HO2S and ECM
• | Faulty HO2S
P0151 | HO2S Circuit Low Input (Bank 2, Sensor 1) |
• | Short to GND between HO2S and ECM
• | Faulty front HO2S
P0152 | HO2S Circuit High Input (Bank 2, Sensor 1) |
• | Short to battery between HO2S and ECM
• | Faulty front HO2S
P0153 | HO2S Circuit Slow Responsive (Bank 2, Sensor 1) |
• | Front and rear HO2S connections reversed
• | Faulty fuel delivery system
• | Leak in intake system
• | Leak in exhaust system
• | Faulty MAFS ground circuit
• | Faulty HO2S
If any misfire, purge solenoid valve, MAFS or HO2S heater codes are present,do all repairs associated with those codes before proceeding with this troublearea.
P0154 | HO2S Circuit No Activity Detected (Bank 2, Sensor 1) |
• | Contaminated, deteriorated or aged HO2S
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
If any misfire, purge solenoid valve or HO2S heater codes are present, do all repairs associated with those codes before proceeding this trouble area.
P0050 | HO2S Heater Control Circuit (Bank 2, Sensor 1) |
• | Contaminated, deteriorated or aged HO2S
• | Heater Resistance out of reasonable range
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
P0051 | HO2S Heater Circuit Low (Bank 2, Sensor 1) |
• | Blown or missing HO2S fuse
• | Open or short to GND between HO2S and ECM
• | Faulty HO2S
P0052 | HO2S Heater Circuit High (Bank 2, Sensor 1) |
• | Short to battery between HO2S and ECM
• | Faulty HO2S
P0157 | HO2S Circuit Low Input (Bank 2, Sensor 2) |
• | Short to GND between HO2S and ECM
• | Faulty rear HO2S
P0158 | HO2S Circuit High Input (Bank 2, Sensor 2) |
• | Open or short to battery between HO2S and ECM
• | Faulty rear HO2S
P0160 | HO2S Circuit No Activity Detected (Bank 2, Sensor 2) |
• | Contaminated, deteriorated or aged HO2S
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
If any misfire, purge solenoid valve or HO2S heater codes are present, do all repairs associated with those codes before proceeding with this trouble area.
P0057 | HO2S Heater Circuit Low (Bank 2, Sensor 2) |
• | Blown or missing HO2S fuse
• | Open or Short to GND between HO2S and ECM
• | Faulty HO2S
P0058 | HO2S Heater Circuit High (Bank 2, Sensor 2) |
• | Short to battery between HO2S and ECM
• | Faulty HO2S
P0171 | Fuel System Too Lean (Bank 1) |
• | Faulty ignition system (Ignition coil/spark plug/Ignition cable)
• | Faulty fuel delivery system (Fuel tank/Pressure regulator/Canister purge valve)
• | Clogged fuel injectors
• | Faulty fuel injectors
• | Leak in intake system
• | Leak in exhaust system
• | Faulty MAFS
If any codes relating to injectors, HO2S, ECTS or MAFS are stored, do all repairs associated with those codes before proceeding with this trouble area.
P0172 | Fuel System Too Rich (Bank 1) |
• | Faulty fuel delivery system (Fuel tank/Pressure regulator/Canister purge valve)
• | Faulty fuel injectors
• | Faulty MAFS
If any codes relating to injectors, HO2S, ECTS or MAFS are stored, do all repairs associated with those codes before proceeding with this trouble area.
P0174 | Fuel System Too Lean (Bank 2) |
• | Faulty ignition system (Ignition coil/spark plug/Ignition cable)
• | Faulty fuel delivery system (Fuel tank/Pressure regulator/Canister purge valve)
• | Clogged fuel injectors
• | Faulty fuel injectors
• | Leak in intake system
• | Leak in exhaust system
• | Faulty MAFS
If any codes relating to injectors, HO2S, ECTS or MAFS are stored, do all repairs associated with those codes before proceeding with this trouble area.
P0175 | Fuel System Too Rich (Bank 2) |
• | Faulty fuel delivery system (Fuel tank/Pressure regulator/Canister purge valve)
• | Faulty fuel injectors
• | Faulty MAFS
If any codes relating to injectors, HO2S, ECTS or MAFS are stored, do all repairs associated with those codes before proceeding with this trouble area.
P0230 | Fuel Pump Circuit Malfunction |
• | Blown or missing fuse/relay
• | Short to battery between fuel pump relay and ECM
• | Open between fuel pump relay and ECM
• | Faulty fuel pump relay
P0261 | Injector Circuit Low Input (Cylinder -1) |
• | Short to GND between injector and ECM
• | Faulty fuel injector
P0264 | Injector Circuit Low Input (Cylinder -2)
P0267 | Injector Circuit Low Input (Cylinder -3)
P0270 | Injector Circuit Low Input (Cylinder -4)
P0273 | Injector Circuit Low Input (Cylinder -5)
P0276 | Injector Circuit Low Input (Cylinder -6)
P0262 | Injector Circuit High Input (Cylinder -1) |
• | Open between injector fuse and injector
• | Open or short to battery between injector and ECM
• | Faulty fuel injector
P0265 | Injector Circuit High Input (Cylinder -2)
P0268 | Injector Circuit High Input (Cylinder -3)
P0271 | Injector Circuit High Input (Cylinder -4)
P0274 | Injector Circuit High Input (Cylinder -5)
P0277 | Injector Circuit High Input (Cylinder -6)
P0300 | Random Misfire Detected |
• | Vacuum leak in air intake system
• | CKP sensor circuit malfunction
• | Faulty CKP sensor
• | Ignition circuit malfunction
• | Faulty ignition coil or plug wire
• | Spark plug malfunction
• | Low compression due to blown head gasket, leaking valve or piston ring
• | Low/high fuel pressure due to faulty pressure regulator, restricted fuel lines,plugged fuel filter or faulty fuel pump
• | Fuel injector circuit malfunction
• | Faulty fuel injector
If any fuel injector codes (or pending codes) are present, do all repairs associated with those codes before proceeding with this trouble area.
P0301 | Misfire Detected (Cylinder -1)
P0302 | Misfire Detected (Cylinder -2)
P0303 | Misfire Detected (Cylinder -3)
P0304 | Misfire Detected (Cylinder -4)
P0305 | Misfire Detected (Cylinder -5)
P0306 | Misfire Detected (Cylinder -6)
P0325 | Knock Sensor Circuit Malfunction (Bank 1) |
• | Open or short to GND between knock sensor and ECM
• | Source of high resistance between knock sensor and ECM
• | Faulty knock sensor
P0330 | Knock Sensor Circuit Malfunction (Bank 2)
P0335 | Crankshaft Position Sensor Circuit Malfunction |
• | Short to GND between CKP sensor and ECM
• | Open or short to battery between CKP and ECM
• | Short between CKP sensor wires
• | Poor connection between CKP connector & harness connector
• | Out of allowable air gap
• | Faulty target wheel tolerance
• | Faulty CKP sensor
P0340 | Camshaft Position Sensor Circuit Malfunction |
• | Short to GND between CMP sensor and ECM
• | Open or short to battery between CMP and ECM
• | Short between CMP sensor wires
• | Poor connection between CMP connector & harness connector
• | Faulty CMP sensor
P0420 | Main catalyst efficiency deterioration (Bank 1) |
• | Catalytic converter deteriorated
If any codes relating to HO2S sensor. MAFS, injectors, a P0170 or a P0173are present, do all repairs associated with them before proceeding with thistrouble area.
P0430 | Main catalyst efficiency deterioration (Bank 2) |
• | Catalytic converter deteriorated
If any codes relating to HO2S sensor. MAFS, injectors, P0171, P0172, P0174 or P0175 are present, do all repairs associated with them before proceeding with this trouble area.
P0441 | EVAP Emission Control System Incorrect Purge Flow |
• | Stuck in valve open position
P0442 | EVAP Emission Control System Small Leak (1 mm) |
• | Fuel filler cap loose or missing
• | Fuel filler cap o-ring missing or damaged
• | Faulty or damaged fuel filler pipe
• | Leaking, disconnected or plugged fuel vapor lines
• | Fuel in lines due to faulty rollover valve, on-board refueling vapor recoveryvalve or stuck closed CCV
• | Canister close valve clogged, struck open or closed
• | Improperly installed purge solenoid valve
• | PSV stuck open or closed
• | Faulty fuel tank pressure sensor
• | Leaking canister or catch tank
If any codes relating to FTPS, CCV or PSV circuits are present, do all repairs associated with those codes before proceeding with this troubles area.
P0444 | EVAP Emission Control System Purge Control Valve Circuit Open |
• | Faulty PSV
• | Open between PSV and ECM
P0445 | EVAP Emission Control System Purge Control Valve Circuit Shorted |
• | Faulty PSV
• | Short to GND or battery between PSV and ECM
P0449 | EVAP Emission Control System Vent Valve/Solenoid Circuit |
• | Stuck in valve closed position (CCV)
• | Faulty CCV
P0447 | EVAP Emission Control System Vent Circuit Open |
• | Open or short to battery between CCV and ECM
• | Faulty CCV
P0448 | EVAP Emission Control System Vent Circuit Shorted |
• | Short to GND between CCV and ECM
• | Faulty CCV
P0451 | EVAP Emission Control System Pressure Sensor Range/Performance Problem |
• | High resistance or open between fuel tank pressure sensor and ECM
• | Stuck closed canister close valve
• | Blocked vapor hose between canister and CCV
• | Open or short to battery between FTPS and ECM
• | Faulty FTPS
P0452 | EVAP Emission Control System Pressure Sensor Low Input |
• | Short to GND between FTPS and ECM
• | Faulty FTPS
P0453 | EVAP Emission Control System Pressure Sensor High Input |
• | Open or short to battery between fuel tank pressure sensor and ECM
• | Short to battery in ECM
• | Open in ECM
• | Faulty FTPS
P0454 | Evaporative Emission Control System - Pressure Sensor Intermittent |
• | Poor connections between FTPS and ECM
• | Misplaced, loose or corroded terminals
• | Foreign materials fouled FTPS
• | Faulty FTPS
P0455 | EVAP Emission Control System - Large Leak |
• | Fuel filler cap loose or missing
• | Fuel filler cap o-ring missing or damaged
• | Faulty or damaged fuel filler pipe
• | Leaking, disconnected or plugged fuel vapor lines
• | Fuel in lines due to faulty rollover valve, on-board refueling vapor recoveryvalve or stuck closed CCV
• | Canister close valve clogged, stuck open or closed
• | Improperly installed purge solenoid valve
• | PSV stuck open or closed
• | Faulty fuel tank pressure sensor
• | Leaking canister or catch tank
If any codes relating to FTPS, CCV or PSV circuits are present, do all repairs associated with those codes before proceeding with this troubles area. If DTC P0455 is stored and MIL is illuminated, before proceeding to evaporative system test and repair, verify whether the customer was running the engine during refueling. If an obvious cause for DTC P0455 is an engine running during refueling, erase the DTC P0455 using Hi-Scan and do not repair the evaporative system. However,the vehicle should be monitored to find reoccurrence of the concern whichmay come from actual evaporative system.
P0456 | Evaporative Emission Control System - Small Leak Detected (0.5mm)
P0461 | Fuel Level Sensor Circuit Range/Performance |
• | Poor connection
• | Contaminated, deteriorated or aged FTLS
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty FTLS
P0462 | Fuel Level Sensor Circuit Low Input |
• | Open or short to GND between FTLS and ECM
• | Short to GND or open in ECM
• | Faulty FTLS
P0463 | Fuel Level Sensor Circuit High Input |
• | Short to battery between FTLS and ECM
• | Short to battery
• | Faulty FTLS
P0464 | Fuel Level Sensor Circuit Intermittent |
• | Poor connections between ECTS and ECM
• | Misplaced, loose or corroded terminals
• | Faulty FTLS
P0501 | Vehicle Speed Sensor Range/Performance |
• | Open between fuse and wheel speed sensor (WSS)
• | Open between WSS and GND
• | Open between WSS and ECM
• | Short to battery or GND between WSS and ECM
• | Faulty WSS
P0506 | Idle Control System rpm Lower than Expected |
• | High resistance between injector fuse and IAC valve
• | High resistance between IAC and ECM
• | Faulty IAC valve
• | Carbon fouled throttle plate
If any TPS, MAFS, fuel injector or IAC valve circuit codes (or pending codes)are present, do all repairs associated with them before proceeding with thistrouble area.
P0507 | Idle Control System rpm Higher than Expected |
• | Improperly adjusted accelerator cable
• | Air leak in intake system between head and throttle plate
• | Faulty PCV valve or PSV
• | Poor connections in TPS circuit or faulty TPS
• | High resistance between IAC valve and ECM
• | Faulty IAC valve
If any codes relating to TPS, MAFS, fuel injector or IAC valve are present,do all repairs associated with them before proceeding with this troubleshootingarea.
P1134 | HO2S Circuit - Transition Switch Malfunction/Slip (Bank 1, Sensor 1) |
• | HO2S Deteriorated
• | Foreign Material Deposit
P1154 | HO2S Circuit - Transition Switch Malfunction/Slip (Bank 2, Sensor 1)
P1166 | Lambda Bank Control Limit (Bank 1) |
• | P1166 is case for HO2S (Bank 1, Sensor 1) Signal line open
• | P1167 is case for HO2S (Bank 2, Sensor 1) Signal line open
• | Fuel system (Fuel tank/Pressure regulator/Fuel pump/PSV) Failure
• | Poor connection to fuel line hose/Sealing/Cut
• | Sealing between purge valve and fuel tank
• | Air leakage in exhaust system
• | Ignition system (Ignition coil, spark plug, cable) failure
• | Surge tank and intake port failure
P1167 | Lambda Bank Control Limit (Bank 2)
P0036 | HO2S Heater Control Circuit (Bank 1, Sensor 2) |
• | Contaminated, deteriorated or aged HO2S
• | Heater resistance out of reasonable range
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
P0056 | HO2S Heater Control Circuit (Bank 2, Sensor 2) |
• | Contaminated, deteriorated or aged HO2S
• | Heater resistance out of reasonable range
• | Misplaced, bent, loose or corroded connector terminals
• | Faulty HO2S
P1372 | Segment Time Acquisition Incorrect |
• | Bad installation of tone wheel to crankshaft
• | Bad signal of the CKP sensor
• | Bad connection of connectors/bad wiring (between ECM and CKP)
P1505 | Idle Charge Actuator Signal Low of Coil #1 |
• | Open or short to GND between ISC and ECM
• | Faulty ISC
P1506 | Idle Charge Actuator Signal High of Coil #1 |
• | Short to battery between ISC and ECM
• | Faulty ISC
P1507 | Idle Charge Actuator Signal Low of Coil #2 |
• | Open or short to GND between ISC and ECM
• | Faulty ISC
P1508 | Idle Charge Actuator Signal High of Coil #2 |
• | Short to battery between ISC and ECM
• | Faulty ISC
P1521 | Power Steering Switch Malfunction |
• | Open or short to battery between switch and ECM
• | Short to GND between switch and ECM
• | Open between switch and ECM
• | Faulty power steering switch
P1529 | TCU Request for MIL ON/Freeze Frame to ECU via CAN |
• | This is only a request from TCM to turn the MIL ON. The fault code is stored in the TCM. The freeze frame data is stored in the ECM under the P1529 request code. Be sure to retrieve freeze frame data before clearing code P1529 from ECM.
P1602 | Serial Communication Problem with TCU (Timeout) |
• | Open or short to serial communication line
• | CAN message timeout
• | Faulty TCU
P0560 | System Voltage Malfunction |
• | Short between main relay and ECM
• | Open between main relay and ECM
• | Poor connection
• | Faulty main relay
P0562 | System Voltage Low |
• | Reverse battery cable connection (+/- reverse)
• | Faulty alternator
P0563 | System Voltage High
P0650 | Malfunction Indication Lamp (MIL) Control Circuit Malfunction |
• | Open or short between lamp and ECM
• | Faulty lamp
P1624 | Cooling Fan Relay Circuit Malfunction (LOW) |
• | Open or short between relay and ECM
• | Short to GND between relay and ECM
• | Open between relay and ECM
• | Faulty relay
P1625 | Cooling Fan Relay Circuit Malfunction (HIGH)
MAJOR SENSOR REFERENCE WAVE-FORMS