Yaris 2007

1.5L L4 VIN - Std 7

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Trouble Code: P0141



Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

Possible Causes:



Open or short in HO2 sensor heater circuit
 
HO2 sensor heater (sensor 2)
 
Integration relay (EFI relay)
 
ECM
 

Trouble Code: P0171



System Too Lean (Bank 1)

Possible Causes:



Air induction system
 
Injector blockage
 
Mass Air Flow (MAF) meter
 
Engine Coolant Temperature
 
(ECT) sensor
 
Fuel pressure
 
Gas leakage from exhaust
 
system
 
Open or short in A/F sensor
 
(sensor 1) circuit
 
A/F sensor (sensor 1)
 
A/F sensor heater (sensor 1)
 
Integration relay (EFI relay)
 
A/F sensor heater and EFI relay circuits
 
PCV valve and hose
 
PCV hose connections
 
ECM
 

Trouble Code: P0327



KNOCK SENSOR 1 CIRCUIT LOW INPUT (BANK 1 OR SINGLE SENSOR)

Possible Causes:



Short in knock sensor circuit
 
Knock sensor
 
ECM
 

Trouble Code: P0328



KNOCK SENSOR 1 CIRCUIT HIGH INPUT (BANK 1 OR SINGLE SENSOR)

Possible Causes:



Open in knock sensor circuit
 
Knock sensor
 
ECM
 

Trouble Code: P0335



Crankshaft Position Sensor "A" Circuit

Possible Causes:



Open or short in CKP sensor circuit
 
CKP sensor
 
CKP sensor plate
 
ECM
 

Trouble Code: P0339



Crankshaft Position Sensor "A" Circuit Intermittent

Possible Causes:



Open or short in CKP sensor circuit
 
CKP sensor
 
CKP sensor plate
 
ECM
 

Trouble Code: P0340



Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)

Possible Causes:



Open or short in CMP sensor
 
circuit
 
CMP sensor
 
Camshaft
 
Jumped tooth of timing chain
 
ECM
 

Trouble Code: P0351



IGNITION COIL -A- PRIMARY/SECONDARY CIRCUIT

Possible Causes:



Ignition system
 
Open or short in IGF1 or IGT circuit (1 to 4) between ignition coil with igniter and ECM
 
No. 1 to No. 4 ignition coils with igniters
 
ECM
 

Trouble Code: P0352



IGNITION COIL -B- PRIMARY/SECONDARY CIRCUIT

Possible Causes:



Ignition system
 
Open or short in IGF1 or IGT circuit (1 to 4) between ignition coil with igniter and ECM
 
No. 1 to No. 4 ignition coils with igniters
 
ECM
 

Trouble Code: P0353



IGNITION COIL -C- PRIMARY/SECONDARY CIRCUIT

Possible Causes:



Ignition system
 
Open or short in IGF1 or IGT circuit (1 to 4) between ignition coil with igniter and ECM
 
No. 1 to No. 4 ignition coils with igniters
 
ECM
 

Trouble Code: P0354



IGNITION COIL -D- PRIMARY/SECONDARY CIRCUIT

Possible Causes:



Ignition system
 
Open or short in IGF1 or IGT circuit (1 to 4) between ignition coil with igniter and ECM
 
No. 1 to No. 4 ignition coils with igniters
 
ECM
 

Trouble Code: P0420



Catalyst System Efficiency Below Threshold (Bank 1)

Possible Causes:



Front exhaust pipe (with TWC)
 
Gas leakage from exhaust system
 
Air-Fuel Ratio (A/F) sensor (sensor 1)
 
Heated Oxygen (HO2) sensor (sensor 2)
 

Trouble Code: P043E



Evaporative Emission System Reference Orifice Clog Up

Possible Causes:



Canister pump
 
module (Reference
 
orifice, leak detection
 
pump, vent valve)
 
Connector/wire
 
harness (Canister
 
pump module - ECM)
 
EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
 
ECM
 
module (Reference
 
orifice, leak detection
 
pump, vent valve)
 
Connector/wire
 
harness (Canister
 

Trouble Code: P043F



Evaporative Emission System Reference Orifice High Flow

Possible Causes:



pump module - ECM)
 
EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
 
ECM
 

Trouble Code: P0441



Evaporative Emission Control System Incorrect Purge Flow

Possible Causes:



Connector/wire harness (Purge VSV - ECM)
 
ECM
 
Canister pump module
 
Leakage from EVAP system
 
Purge VSV
 
harness (Purge
 
VSV - ECM)
 
ECM
 
Canister pump
 
module
 
Leakage from
 
EVAP system
 
Purge VSV
 
harness (Purge
 
VSV - ECM)
 
Leakage from
 
EVAP line (Purge
 
VSV - Intake
 
manifold)
 

Trouble Code: P0450



Evaporative Emission Control System Pressure Sensor Malfunction

Possible Causes:



Canister pump module
 
EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
 
ECM
 

Trouble Code: P0451



Evaporative Emission Control System Pressure Sensor Range / Performance

Possible Causes:



Canister pump module
 
Connector/wire harness (Canister pump module - ECM)
 
EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
 
ECM
 

Trouble Code: P0452



Evaporative Emission Control System Pressure Sensor / Switch Low Input

Possible Causes:



Canister pump module
 
Connector/wire harness (canister pump module -ECM)
 
EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
 
ECM
 

Trouble Code: P0453



Evaporative Emission Control System Pressure Sensor / Switch High Input

Possible Causes:



Canister pump module
 
Connector/wire harness (canister pump module -ECM)
 
EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
 
ECM
 

Trouble Code: P0500



Vehicle Speed Sensor "A"

Possible Causes:



Open or short in speed signal circuit
 
Vehicle speed sensor
 
Combination meter
 
ECM
 
Skid control ECU
 

Trouble Code: P0504



Brake Switch "A" / "B" Correlation

Possible Causes:



Short in stop light switch signal circuit
 
STOP fuse
 
IGN fuse
 
Stop light switch
 
ECM
 

Trouble Code: P0505



Idle Control System Malfunction

Possible Causes:



ETCS
 
Air induction system
 
PCV hose connections
 
ECM
 

Trouble Code: P050A



Cold Start Idle Air Control System Performance

Possible Causes:



Throttle body assembly
 
Mass air flow meter
 
Air induction system
 
PCV hose connections
 
VVT system
 
Air cleaner filter element
 
ECM
 

Trouble Code: P050B



Cold Start Ignition Timing Performance

Possible Causes:



Throttle body assembly
 
Mass air flow meter
 
Air induction system
 
PCV hose connections
 
VVT system
 
Air cleaner filter element
 
ECM
 

Trouble Code: P0560



System Voltage

Possible Causes:



Open in back up power source circuit
 
Battery
 
Battery terminals
 
EFI fuse
 
ECM
 

Trouble Code: P0604



Internal Control Module Random Access Memory (RAM) Error

Possible Causes:



ECM
 

Trouble Code: P0606



ECM / PCM Processor

Possible Causes:



ECM
 

Trouble Code: P0607



Control Module Performance

Possible Causes:



Exhaust gas leak
 
Heated oxygen sensor
 
ECM
 

Trouble Code: P0617



Starter Relay Circuit High

Possible Causes:



Park/Neutral Position (PNP)
 
switch (A/T )
 
Clutch start switch (M/T )
 
Starter relay circuit
 
Ignition switch
 
ECM
 

Trouble Code: P0630



VIN not Programmed or Mismatch - ECM / PCM

Possible Causes:



ECM
 

Trouble Code: P0657



Actuator Supply Voltage Circuit / Open

Possible Causes:



ECM
 

Trouble Code: P0705



Transmission Range Sensor Circuit Malfunction (PRNDL Input)

Possible Causes:



Open or short in park/neutral position switch circuit
 
Park/neutral position switch
 
Shift lock control ECU
 
ECM
 

Trouble Code: P0710



Transmission Fluid Temperature Sensor "A" Circuit

Possible Causes:



Open or short in ATF temperature sensor circuit
 
Transmission wire (ATF temperature sensor)
 
ECM
 

Trouble Code: P0711



Transmission Fluid Temperature Sensor "A" Performance

Possible Causes:



ATF level
 
Transmission wire (ATF temperature sensor)
 
ECM
 

Trouble Code: P0712



Transmission Fluid Temperature Sensor "A" Circuit Low Input

Possible Causes:



Short in ATF temperature sensor circuit
 
Transmission wire (ATF temperature sensor)
 
ECM
 

Trouble Code: P0713



Transmission Fluid Temperature Sensor "A" Circuit High Input

Possible Causes:



Open in ATF temperature sensor circuit
 
Transmission wire (ATF temperature sensor)
 
ECM
 

Trouble Code: P0717



Turbine Speed Sensor Circuit No Signal

Possible Causes:



Open or short in transmission
 
revolution sensor (Speed sensor (NT))
 
circuit
 
Transmission revolution sensor
 
Automatic transaxle (clutch, brake or
 
gear etc.)
 
ECM
 

Trouble Code: P0724



Brake Switch "B" Circuit High

Possible Causes:



Short in stop light
 
switch signal
 
circuit
 
Stop light switch
 
ECM
 

Trouble Code: P0751



Shift Solenoid "A" Performance (Shift Solenoid Valve S1)

Possible Causes:



Shift solenoid valve S1 remains closed
 
Valve body is blocked
 
Shift solenoid valve S1
 
Automatic transaxle (clutch, brake or gear etc.)
 
ECM
 
Shift solenoid valve S1 remains open
 
Valve body is blocked
 
Shift solenoid valve S1
 
Automatic transaxle (clutch, brake or gear etc.)
 
ECM
 

Trouble Code: P0756



Shift Solenoid "B" Performance (Shift Solenoid Valve S2)

Possible Causes:



Shift solenoid valve S2 remains closed
 
Valve body is blocked
 
Shift solenoid valve S2
 
Automatic transaxle (clutch, brake or gear etc.)
 
ECM
 
Shift solenoid valve S2 remains open
 
Valve body is blocked
 
Shift solenoid valve S2
 
Automatic transaxle (clutch, brake or gear etc.)
 
ECM
 

 
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