What causes the throttle to set to p2138?
It’s possible that low-voltage issues could be causing code P2138 to set. On your car, when the battery voltage drops below 10 volts (or the battery is disconnected, or power to the ECM is lost), the throttle body’s basic setting may be lost.
What does the code p1238 on the throttle position sensor mean?
Code P1238 indicates that the signals from the two throttle position sensors (or two accelerator pedal position sensors) do not correlate. What Does the P2138 Code Mean? Diagnostic trouble code (DTC) P2138 stands for “Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation.”
What does p2138 mean on a car sensor?
Depending on the vehicle manufacturer, code P2138 can indicate either the car’s two TP sensors don’t agree, or it’s two APP sensors don’t agree. P2138 is a common issue among the following makes: Chevrolet (especially on a Chevy Malibu), Nissan, Honda, Subaru, and Acura.
What is the p2138 code on a Chevy Malibu?
P2138 is a common issue among the following makes: Chevrolet (especially on a Chevy Malibu), Nissan, Honda, Subaru, and Acura. Accelerator pedal position (APP) sensors provide information to the ECM/PCM concerning driver throttle requests. The ECM/PCM processes that information very rapidly, mirroring pedal movement by moving the throttle plate.
What is the p2138 code on a throttle body?
Photo of a throttle body, throttle body position (TPS) sensor is the black part to the lower right: The computer monitors the correlation of both voltages. When both voltages agree, the system is functioning properly. When they deviate for two seconds, the code P2138 is set indicating a malfunction somewhere in the system.
Where is the p2138 reduced power Bulletin located?
The P2138 trouble code may be stored in the computer along with a check engine light. The P2138 Reduced Power bulletin applies to the following vehicles: 2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn) The P2128 trouble code refers to Accelerator Pedal Position (APP) Sensor 1-2 Correlation.
What does the DTC code p2138 stand for?
What Does the P2138 Code Mean? Diagnostic trouble code (DTC) P2138 stands for “Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation.”
When does the throttle / pedal position sensor switch D?
It is triggered when the vehicle’s engine control module (ECM) or powertrain control module (PCM) detects that the signals from the two throttle position sensors (or two accelerator pedal position sensors) do not correlate.