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P2127 CADILLAC

P2127 CADILLAC - Accelerator Pedal Position Sensor 2 Circuit Low Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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P2127 CADILLAC Possible Causes

  • Faulty Accelerator Pedal Position Sensor
  • Accelerator Pedal Position Sensor harness is open or shorted
  • Accelerator Pedal Position Sensor circuit poor electrical connection
  • Faulty Electric Throttle Control Actuator

First diagnose P2127 CADILLAC code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P2127 CADILLAC code

    Labor: 1.0

    The cost of diagnosing the P2127 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

P2127 CADILLAC Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2127 Cadillac Description

The Accelerator Pedal Position (APP) sensor is made up of 2 sensors that are housed inside one assembly. The Engine Control Module (ECM) supplies a separate 5-volt reference circuit and a low reference circuit for each of the sensors. The 5-volt reference for APP sensor 1 is supplied from the same source in the ECM as the 5-volt reference for the mass air flow (MAF) sensor and the fuel tank pressure (FTP) sensor. The 5-volt reference voltage for all of the sensors is supplied on separate ECM terminals, but the terminals are connected internally to a voltage supply. The APP sensor 1 sends a signal from the sensor to the ECM indicating the accelerator pedal position. The ECM actuates the throttle plates based on this information. If the ECM detects that the APP sensors are not within a predicted value from each other, DTC P2127 sets.
OBDII Code P2127 Cadillac - Accelerator Pedal Position Sensor 2 Circuit Low Voltage - AutoCodes.com

P2127 CADILLAC More Information

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