Corolla 2006-2007

1.8L L4 VIN R Auto 7

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Trouble Code: P2121



Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance

Possible Causes:



Accelerator pedal position sensor
 
ECM
 

Trouble Code: P2135



Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation

Possible Causes:



Short between VTA1 and VTA2 circuits
 
Throttle position sensor (built into throttle body)
 
ECM
 

Trouble Code: P2238



Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)

Possible Causes:



Open or short in A/F sensor
 
(sensor 1) circuit
 
A/F sensor (sensor 1)
 
A/F sensor heater
 
EFI relay
 
A/F sensor heater and relay
 
circuits
 
ECM
 
(sensor 1) circuit
 

Trouble Code: P2239



Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)

Possible Causes:



A/F sensor (sensor 1)
 
A/F sensor heater
 
EFI relay
 
A/F sensor heater and relay circuits
 
ECM
 
Open or short in A/F sensor
 

Trouble Code: P2252



Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)

Possible Causes:



Open or short in air fuel ratio sensor (sensor 1) circuit
 
Air fuel ratio sensor (sensor 1)
 
ECM
 

Trouble Code: P2253



OXYGEN SENSOR REFERENCE GROUND CIRCUIT HIGH (FOR A/F SENSOR)(BANK 1 SENSOR 1)

Possible Causes:



Open or short in A/F sensor (sensor 1) circuit
 
A/F sensor (sensor 1)
 
A/F sensor heater
 
EFI relay
 
A/F sensor heater and relay circuits
 
ECM
 

Trouble Code: P2430



Secondary Air Injection System Air Flow / Pressure Sensor Circuit Bank1

Possible Causes:



Pressure sensor
 
Open or short in pressure sensor circuit
 
Vacuum hose
 
Check valve
 
ECM
 

Trouble Code: P2431



Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance Bank1

Possible Causes:



Pressure sensor
 
Open or short in pressure sensor circuit
 
Vacuum hose
 
Check valve
 
ECM
 

Trouble Code: P2431



Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance Bank1

Possible Causes:



Open or short in pressure sensor circuit
 
Vacuum hose
 
Check valve
 
ECM
 
Pressure sensor
 

Trouble Code: P2432



Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low Bank1

Possible Causes:



Pressure sensor
 
Open or short in pressure sensor circuit
 
Vacuum hose
 
Check valve
 
ECM
 

Trouble Code: P2432



Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low Bank1

Possible Causes:



Open or short in pressure sensor circuit
 
Vacuum hose
 
Check valve
 
ECM
 
Pressure sensor
 

Trouble Code: P2433



Secondary Air Injection System Air Flow / Pressure Sensor Circuit High Bank1

Possible Causes:



Pressure sensor
 
Open or short in pressure sensor circuit
 
Vacuum hose
 
Check valve
 
ECM
 

Trouble Code: P2433



Secondary Air Injection System Air Flow / Pressure Sensor Circuit High Bank1

Possible Causes:



Open or short in pressure sensor circuit
 
Vacuum hose
 
Check valve
 
ECM
 

Trouble Code: P2440



Secondary Air Injection System Switching Valve Stuck Open Bank1

Possible Causes:



VSV
 
Air switching valve
 
Open or short in VSV
 
circuit
 
Pressure sensor
 
Open or short in pressure sensor circuit
 
ECM
 
Air switching valve
 
Open or short in VSV
 
circuit
 

Trouble Code: P2441



Secondary Air Injection System Switching Valve Stuck Close Bank1

Possible Causes:



Vacuum hose and check valve
 
Air injection hose
 
Pressure sensor
 
Open or short in pressure sensor circuit
 
ECM
 

Trouble Code: P2444



Secondary Air Injection System Pump Stuck On Bank1

Possible Causes:



Short in air pump circuit
 
Pressure sensor
 
Air pump assembly
 
Open or short in pressure sensor circuit
 
ECM
 

Trouble Code: P2445



Secondary Air Injection System Pump Stuck Off Bank1

Possible Causes:



Air pump fuse
 
Vacuum hose
 
Air pump assembly
 
Open in air pump circuit
 
Air injection system piping
 
Pressure sensor
 
Open or short in pressure sensor circuit
 
ECM
 

Trouble Code: P2610



ECM / PCM Internal Engine Off Timer Performance

Possible Causes:



ECM
 

Trouble Code: P2645



OCV for VVTL Circuit (Bank 1)

Possible Causes:



Open or short in OCV circuit
 
OCV for VVTL-i
 
Oil pressure switch for VVTL-i
 
ECM
 

Trouble Code: P2716



Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)

Possible Causes:



Open or short in shift solenoid valve SLT circuit
 
Shift solenoid valve SLT
 
ECM
 

Trouble Code: P2769



TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT LOW (SHIFT SOLENOID VALVE SL)

Possible Causes:



Short in shift solenoid valve SL circuit
 
Shift solenoid valve SL
 
ECM
 

Trouble Code: P2770



TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT HIGH (SHIFT SOLENOID VALVE SL)

Possible Causes:



Open in shift solenoid valve SL circuit
 
Shift solenoid valve SL
 
ECM
 

 
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