2010 Cadillac Truck SRX FWD V6-3.0L Page 1303
DTC P0123
- Throttle Position Sensor 1 Circuit High Voltage
DTC P0222
- Throttle Position Sensor 2 Circuit Low Voltage
DTC P0223
- Throttle Position Sensor 2 Circuit High Voltage
DTC P2135
- Throttle Position Sensors 1-2 Not Plausible
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The throttle body assembly contains 2 throttle position (TP) sensors. The TP sensors are mounted to the throttle body assembly and are not
serviceable. The TP sensors provide a signal voltage that changes relative to throttle blade angle. The engine control module (ECM) supplies the TP
sensors with a common 5 V reference circuit, a common low reference circuit, and 2 independent signal circuits.
The TP sensors have opposite functionality. TP sensor 1 signal voltage decreases and TP sensor 2 signal voltage increases as the accelerator pedal
increases to wide open throttle (WOT).
Conditions for Running the DTC
P0121
* DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0335, or P0336 is not set.
* The engine speed is between 400-7,000 RPM.
* The engine coolant temperature (ECT) is between 69-127掳C (156-260掳F).
* The intake air temperature (IAT) is between -20 to +125掳C (-4 to +257掳F).
* The DTC runs continuously when the above conditions are met.
P0122, P0123, P0222, P0223
* DTC P06A3 is not set.
* The ignition is ON, or the engine is running.
* The engine is not operating in reduced power mode.
* The ignition voltage is greater than 6 V.
* The DTCs runs continuously when the above condition are met.
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