DTC No.
|
Diagnostic items
|
Trouble area
|
P0101
|
Mass Air Flow
Circuit Range/performance Problem
|
•
|
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 |
|
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 |
|
P0112
|
Intake Air
Temperature Circuit Low Input
|
•
|
Short to ground between IAT sensor and
ECM |
•
|
Short between IAT sensor
wires |
|
P0113
|
Intake Air
Temperature Circuit High Input
|
•
|
Open or short to battery between IAT
sensor and ECM |
|
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 |
|
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 |
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 |
|
P0118
|
Engine Coolant
Temperature Circuit High Input
|
•
|
Open or short to battery between ECTS
and ECM |
|
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 |
|
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) |
|
P0123
|
Throttle Position
Sensor Circuit High Input
|
•
|
Open or short to battery between TPS and
ECM |
|
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 |
|
P0128
|
Coolant
thermostat stuck
|
•
|
Thermostat stuck
opened | |
P0131
|
HO2S Circuit Low
Input (Bank 1, Sensor 1)
|
•
|
Short to GND between HO2S and
ECM |
|
P0132
|
HO2S Circuit High
Input (Bank 1, Sensor 1)
|
•
|
Short to battery between HO2S and
ECM |
|
P0133
|
HO2S Circuit Slow
Responsive (Bank 1, Sensor 1)
|
•
|
Front and rear HO2S connections
reversed |
•
|
Faulty fuel delivery
system |
•
|
Faulty MAFS ground
circuit |
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 |
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 |
|
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 |
|
P0031
|
HO2S Heater
Circuit Low (Bank 1, Sensor 1)
|
•
|
Blown or mission HO2S
fuse |
•
|
Open or short to GND between HO2S and
ECM |
|
P0032
|
HO2S Heater
Circuit High (Bank 1, Sensor 1)
|
•
|
Short to battery between HO2S and
ECM |
|
P0136
|
HO2S Circuit
Malfunction (Bank 1, Sensor 2)
|
•
|
Short between rear HO2S and
ECM |
|
P0137
|
HO2S Circuit Low
Input (Bank 1, Sensor 2)
|
•
|
Short to GND between HO2S and
ECM |
|
P0138
|
HO2S Circuit Low
Input (Bank 1, Sensor 2)
|
•
|
Open or short to battery between HO2S
and ECM |
|
P0139
|
HO2S Circuit Slow
Responsive (Bank 1, Sensor 2)
|
•
|
Front and rear HO2S connections
reversed |
•
|
Faulty fuel delivery
system |
•
|
Faulty MAFS ground
circuit |
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 |
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 |
|
P0037
|
HO2S Heater
Circuit Low (Bank 1, Sensor 2)
|
•
|
Blown or missing HO2S
fuse |
•
|
Open or short to GND between HO2S and
ECM |
|
P0038
|
HO2S Heater
Circuit High (Bank 1, Sensor 2)
|
•
|
Short to battery between HO2S and
ECM |
|
P0151
|
HO2S Circuit Low
Input (Bank 2, Sensor 1)
|
•
|
Short to GND between HO2S and
ECM |
|
P0152
|
HO2S Circuit High
Input (Bank 2, Sensor 1)
|
•
|
Short to battery between HO2S and
ECM |
|
P0153
|
HO2S Circuit Slow
Responsive (Bank 2, Sensor 1)
|
•
|
Front and rear HO2S connections
reversed |
•
|
Faulty fuel delivery
system |
•
|
Faulty MAFS ground
circuit |
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 |
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 |
|
P0051
|
HO2S Heater
Circuit Low (Bank 2, Sensor 1)
|
•
|
Blown or missing HO2S
fuse |
•
|
Open or short to GND between HO2S and
ECM |
|
P0052
|
HO2S Heater
Circuit High (Bank 2, Sensor 1)
|
•
|
Short to battery between HO2S and
ECM |
|
P0157
|
HO2S Circuit Low
Input (Bank 2, Sensor 2)
|
•
|
Short to GND between HO2S and
ECM |
|
P0158
|
HO2S Circuit High
Input (Bank 2, Sensor 2)
|
•
|
Open or short to battery between HO2S
and ECM |
|
P0160
|
HO2S Circuit No
Activity Detected (Bank 2, Sensor 2)
|
•
|
Contaminated, deteriorated or aged
HO2S |
•
|
Misplaced, bent, loose or corroded
connector terminals |
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 |
|
P0058
|
HO2S Heater
Circuit High (Bank 2, Sensor 2)
|
•
|
Short to battery between HO2S and
ECM |
|
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) |
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) |
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) |
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) |
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 |
|
P0261
|
Injector
Circuit Low Input (Cylinder -1)
|
•
|
Short to GND between injector and
ECM |
|
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 |
|
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 |
•
|
Ignition circuit
malfunction |
•
|
Faulty ignition coil or plug
wire |
•
|
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 |
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 |
|
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 |
|
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 |
|
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
|
•
|
Open between PSV and
ECM | |
P0445
|
EVAP Emission
Control System Purge Control Valve Circuit Shorted
|
•
|
Short to GND or battery between PSV and
ECM | |
P0449
|
EVAP Emission
Control System Vent Valve/Solenoid Circuit
|
•
|
Stuck in valve closed position
(CCV) |
|
P0447
|
EVAP Emission
Control System Vent Circuit Open
|
•
|
Open or short to battery between CCV and
ECM |
|
P0448
|
EVAP Emission
Control System Vent Circuit Shorted
|
•
|
Short to GND between CCV and
ECM |
|
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 |
|
P0452
|
EVAP Emission
Control System Pressure Sensor Low Input
|
•
|
Short to GND between FTPS and
ECM |
|
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 |
|
P0454
|
Evaporative
Emission Control System - Pressure Sensor Intermittent
|
•
|
Poor connections between FTPS and
ECM |
•
|
Misplaced, loose or corroded
terminals |
•
|
Foreign materials fouled
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
|
•
|
Contaminated, deteriorated or aged
FTLS |
•
|
Misplaced, bent, loose or corroded
connector terminals |
|
P0462
|
Fuel Level Sensor
Circuit Low Input
|
•
|
Open or short to GND between FTLS and
ECM |
•
|
Short to GND or open in
ECM |
|
P0463
|
Fuel Level Sensor
Circuit High Input
|
•
|
Short to battery between FTLS and
ECM |
|
P0464
|
Fuel Level Sensor
Circuit Intermittent
|
•
|
Poor connections between ECTS and
ECM |
•
|
Misplaced, loose or corroded
terminals |
|
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 |
|
P0506
|
Idle Control
System rpm Lower than Expected
|
•
|
High resistance between injector fuse
and IAC valve |
•
|
High resistance between IAC and
ECM |
•
|
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 |
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)
|
•
|
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 |
|
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 |
|
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 |
|
P1506
|
Idle Charge
Actuator Signal High of Coil #1
|
•
|
Short to battery between ISC and
ECM |
|
P1507
|
Idle Charge
Actuator Signal Low of Coil #2
|
•
|
Open or short to GND between ISC and
ECM |
|
P1508
|
Idle Charge
Actuator Signal High of Coil #2
|
•
|
Short to battery between ISC and
ECM |
|
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 |
|
P0560
|
System Voltage
Malfunction
|
•
|
Short between main relay and
ECM |
•
|
Open between main relay and
ECM |
|
P0562
|
System Voltage
Low
|
•
|
Reverse battery cable connection (+/-
reverse) |
|
P0563
|
System Voltage
High
|
P0650
|
Malfunction
Indication Lamp (MIL) Control Circuit Malfunction
|
•
|
Open or short between lamp and
ECM |
|
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 |
|
P1625
|
Cooling Fan Relay
Circuit Malfunction (HIGH)
|