Toyota 2GR-FE Manual page 240

ES–84
DTC No.
P2122
P2123
P2125
ES
P2127
P2128
P2135
P2138
P2195
P2196
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Detection Item Suspected Trouble
Area
Throttle / Pedal 1. Accelerator Pedal
Position Sensor / Position (APP)
Switch "D" Circuit sensor
Low Input 2. Open in VCP1
circuit
3. Open or ground
short in VPA circuit
4. ECM
Throttle / Pedal 1. Accelerator Pedal
Position Sensor / Position (APP)
Switch "D" Circuit sensor
High Input 2. Open in EPA circuit
3. ECM
Throttle / Pedal 1. Accelerator Pedal
Position Sensor / Position (APP)
Switch "E" Circuit sensor
2. ECM
Throttle / Pedal 1. Accelerator Pedal
Position Sensor / Position (APP)
Switch "E" Circuit sensor
Low Input 2. Open in VCP2
circuit
3. Open or ground
short in VPA2 circuit
4. ECM
Throttle / Pedal 1. Accelerator Pedal
Position Sensor / Position (APP)
Switch "E" Circuit sensor
High Input 2. Open in EPA2
circuit
3. ECM
Throttle / Pedal 1. Short between
Position Sensor / VTA1 and VTA2
Switch "A" / "B" circuits
Voltage Correlation 2. TP sensor (built
into throttle body)
3. ECM
Throttle / Pedal 1. Short between
Position Sensor / VPA and VPA2
Switch "D" / "E" circuits
Voltage Correlation 2. APP sensor
3. ECM
Oxygen (A/F) Sensor 1. Open or short in A/
Signal Stuck Lean F sensor (bank 1
(Bank 1 Sensor 1) sensor 1) circuit
2. A/F sensor (bank 1
sensor 1)
3. A/F sensor heater
(bank 1 sensor 1)
4. A/F sensor heater
relay
5. A/F sensor heater
and relay circuits
6. Air induction
system
7. Fuel pressure
8. Injector
9. ECM
Oxygen (A/F) Sensor Same as DTC P2195
Signal Stuck Rich
(Bank 1 Sensor 1)
MIL Memory
Comes on DTC stored
Comes on DTC stored
Comes on DTC stored
Comes on DTC stored
Comes on DTC stored
Comes on DTC stored
Comes on DTC stored
Comes on DTC stored
Comes on DTC stored
See page
ES-334
ES-334
ES-334
ES-334
ES-334
ES-154
ES-334
ES-345
ES-345