P127E CHRYSLER – Fuel Pump 2 Control Circuit Open

P127E CHRYSLER Possible Causes

  • Faulty fuel pump control module
  • Fuel pump control circuit wiring open or shorted
  • Poor electrical connection in the fuel pump control circuit

How is the P127E CHRYSLER code repaired?

Start by checking 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 connector pins.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)

P127E CHRYSLER Meaning

The Powertrain Control Module (PCM) monitors the fuel pump control. The PCM sets the OBDII code when the fuel pump control does not meet factory specifications.

P127E DODGE – Fuel Pump Control Circuit 2 Open

Meaning of Code P127E

Code P127E on Dodge vehicles indicates a malfunction in the fuel pump control circuit. The Powertrain Control Module (PCM) detects that the control signal does not match the manufacturer’s specifications.

Possible Symptoms

  • ⚠️ Check engine light on (or “Service Engine Soon”)

  • 🚗 Starting problems

  • ⚡ Irregular idle speed

  • ⛽ Loss of power or hesitation during acceleration

Possible Causes

  1. Faulty fuel pump (electrical control failure)

  2. Wiring issue:

    • Short circuit or open circuit in the control harness

    • Damaged or corroded connectors

  3. Poor electrical connection at:

    • The fuel pump

    • The relay or PCM

  4. PCM failure (less common)

Diagnostic and Repair Procedure

Step 1: Visual Inspection

  • 🔍 Check the fuel pump wiring harness and connectors

  • 🔌 Inspect the condition of the pins (broken, bent, oxidized)

  • 🧹 Clean the contacts with electrical contact cleaner spray

Step 2: Electrical Testing

  • 🔋 Check the fuel pump supply voltage (12V during startup)

  • 📏 Measure the pump resistance (compare to manufacturer values)

  • ⚡ Test wire integrity (no short or open circuit)

Step 3: Advanced Diagnostics

  • 💻 Use an OBD-II scanner to:

    • Read live pump data

    • Check for related codes

  • 🔄 Try resetting the PCM after repair

Step 4: Replacing Faulty Parts

  • 🔧 Replace the fuel pump if faulty

  • 🔌 Change damaged wiring or connectors

  • 🛠️ Have the PCM reprogrammed if necessary (rare cases)

Conclusion

Code P127E on Dodge typically indicates an electrical issue in the fuel pump control circuit. While sometimes easy to fix (poor connection), it may require pump replacement in more serious cases.

🔧 Professional tip: If you’re not comfortable with electrical diagnostics, consult a qualified mechanic.

🚗 Is your Dodge showing this code? Share your experience in the comments to help other owners!

P127E FORD – Malfunction in Fuel Injector 8 Input Circuit

P127E FORD Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Poor electrical connection in the fuel injector circuit

How is the P127E FORD code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P127E FORD Meaning

The Engine Control Module (ECM) monitors the fuel injector. The ECM sets the OBDII code when the fuel injector does not meet factory specifications.

P127F CHRYSLER – Fuel Pump 2 Control Circuit Overcurrent

P127F CHRYSLER Possible Causes

  • Faulty fuel pump control module
  • Fuel pump control circuit wiring open or shorted
  • Poor electrical connection in the fuel pump control circuit
 

How is the P127F CHRYSLER code repaired?

Start by checking 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 connector pins.

 
 

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)
 

P127F CHRYSLER Meaning

The Powertrain Control Module (PCM) monitors the fuel pump control. The PCM sets the OBDII code when the fuel pump control does not meet factory specifications.

P127F DODGE – Fuel Pump Control Circuit 2 Overcurrent

P127F DODGE Possible Causes

  • Faulty fuel pump control module
  • Fuel pump control circuit open or shorted
  • Poor electrical connection in fuel pump control circuit

How is the P127F DODGE code repaired?

Start by checking 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 connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P127F DODGE Meaning

The Powertrain Control Module (PCM) monitors the fuel pump control. The PCM sets the OBDII code when the fuel pump control does not meet factory specifications.

P1280 – Injection Control Pressure Out of Low Range

P1280 Possible Causes

  • Faulty Injection Control Pressure (ICP) sensor
  • Injection Control Pressure sensor harness is open or shorted
  • Poor electrical connection in the Injection Control Pressure sensor circuit
  • Faulty Powertrain Control Module (PCM)

How is P1280 code repair performed?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1280 Meaning

The Powertrain Control Module (PCM) monitors the injection control pressure circuit. This Diagnostic Trouble Code (DTC) indicates that the injector control signal is outside the self-test range (low).

P1280 ACURA – Malfunction in Accelerator Pedal Position Sensor 2 Circuit

P1280 ACURA Possible Causes

  • Faulty Accelerator Pedal Position (APP)
  • Accelerator pedal position harness is open or shorted
  • Poor electrical connection in the accelerator pedal position circuit

How is the P1280 ACURA code repaired?

Start by checking 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 connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1280 ACURA Meaning

Accelerator Pedal Position Sensor 2 Circuit Malfunction is the generic description for Acura P1280 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about the Acura P1280 OBDII code.

P1280 BUICK – Accelerator Pedal Position Sensor 2 Circuit

P1280 BUICK Possible Causes

  • Faulty accelerator pedal position (APP) sensor
  • Accelerator pedal position harness is open or shorted
  • Poor electrical connection in accelerator pedal position circuit

How is P1280 BUICK Code Repair Performed?

Start by checking 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 connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1280 BUICK Meaning

The accelerator pedal position (APP) sensors are located in the throttle actuator control (TAC) module assembly. The TAC module assembly is mounted on the accelerator pedal bracket. There are 3 individual APP sensors in the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used to determine the accelerator pedal position. The APP sensor signal voltages increase when the accelerator pedal is depressed.

P1280 CADILLAC – Accelerator Pedal Position Sensor 2 Circuit

P1280 CADILLAC Possible Causes

  • Faulty accelerator pedal position (APP) sensor
  • Accelerator pedal position harness is open or shorted
  • Poor electrical connection in the accelerator pedal position circuit

How is P1280 CADILLAC Code Repaired?

Start by checking 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 connector pins.

Possible Symptoms

  • Engine light on (or service engine soon warning light)

P1280 CADILLAC Meaning

The accelerator pedal position (APP) sensors are located in the throttle actuator control (TAC) module assembly. The TAC module assembly is mounted on the accelerator pedal bracket. There are 3 individual APP sensors in the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used to determine the accelerator pedal position. The APP sensor signal voltages increase when the accelerator pedal is depressed.

P1280 CHEVROLET – Accelerator Pedal Position Sensor 2 Circuit

P1280 CHEVROLET Possible Causes

  • Faulty Accelerator Pedal Position (APP)
  • Accelerator Pedal Position Harness is Open or Shorted
  • Poor Electrical Connection in the Accelerator Pedal Position Circuit

How is the P1280 CHEVROLET Code Repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

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

P1280 CHEVROLET Meaning

The Accelerator Pedal Position (APP) sensors are located in the Throttle Actuator Control (TAC) module assembly. The TAC module assembly is mounted on the accelerator pedal bracket. There are 3 individual APP sensors in the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used to determine the accelerator pedal position. The APP sensor signal voltages increase when the accelerator pedal is pressed.