P1042 – Malfunction in Injector 2 Power Supply Voltage Circuit

Error code P1042 indicates a potential issue with the voltage supply circuit for injector number 2. Possible causes include:

  • Faulty Injector 2: The injector itself may be defective, causing an electrical issue in its supply circuit.
  • Injector 2 Wiring Problems: The wiring harness supplying the injector may be interrupted (open) or short-circuited, affecting the voltage reaching it.
  • Poor Electrical Connection in Injector 2 Circuit: A faulty electrical contact at the injector connector or other points in the supply circuit could disrupt the voltage.

How to Resolve Code P1042?

The first step is to carefully examine the possible causes mentioned above. Start with a visual inspection of the wiring harness and connectors associated with fuel injector number 2. Look for any signs of damage to the cables and check the condition of the connector pins: ensure they are not broken, bent, pushed out, or corroded.

Symptoms Associated with Code P1042:

The most common symptom is the illumination of the engine light (or the “Service Engine Soon” warning light).

Meaning of Code P1042:

The generic description of code P1042 is: “Injector 2 Supply Voltage Circuit Malfunction.” However, it is important to note that the vehicle manufacturer may have a different specific description for this code depending on the model and year of your vehicle. Currently, there is no widely available additional information regarding the specific meaning of OBDII code P1042 beyond this general description. It is recommended to consult the technical documentation specific to your vehicle for a more accurate diagnosis.

P1042 AUDI – Malfunction in Injector 2 Power Supply Voltage Circuit

P1042 AUDI Possible Causes

  • Faulty Injector 2
  • Injector 2 Circuit Open or Shorted
  • Poor Electrical Connection in Injector 2 Circuit

How is AUDI P1042 Code Repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated 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)

P1042 AUDI Meaning

Injector 2 Supply Voltage Circuit Malfunction is the generic description for Audi P1042 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the Audi P1042 OBDII code.

P1042 DODGE – TP Sensor Circuit Reads Low

How is the P1042 DODGE Code Repaired?

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

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P1042 DODGE Meaning

TP sensor Circuit reading low is the generic description for Dodge code P1042, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the OBDII P1042 Dodge code.

P1042 SAAB – High Efficiency Injector 4

P1042 SAAB Possible Causes

  • Faulty Injector 4
  • Injector 4 harness is open or shorted
  • Poor electrical connection in the Injector 4 circuit

How is the P1042 SAAB 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)

P1042 SAAB Meaning

Injector 4 High Output is the generic description for the P1042 Saab code, but the manufacturer may have a different description for your vehicle’s model and year. Currently, we do not have more information about the Saab P1042 OBDII code.

P1042 Volkswagen – Malfunction in Injector 2 Power Supply Circuit

P1042 VOLKSWAGEN Possible Causes

  • Faulty Injector 2
  • Injector 2 Harness is Open or Shorted
  • Poor Electrical Connection in Injector 2 Circuit

How is P1042 VOLKSWAGEN Code Repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated 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)

P1042 VOLKSWAGEN Meaning

Injector 2 Supply Voltage Circuit Malfunction is the generic description for Volkswagen P1042 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Volkswagen P1042 OBDII code.

P1043 – Injector 3 Supply Voltage Short Circuit

P1043 Possible Causes

  • Faulty Injector 3
  • Injector 3 Circuit Open or Shorted
  • Poor Electrical Connection in Injector 3 Circuit

How is Code P1043 Repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated 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)

P1043 Meaning

Injector 3 Supply Voltage Short Circuit is the generic description for code P1043, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we do not have more information about the OBDII P1043 code.

P1043 AUDI – Injector 3 Power Supply Short Circuit

Code P1043 Audi: Injector 3 Supply Voltage Short Circuit

1. Definition

  • Generic Meaning:
    Code P1043 indicates a short circuit in the supply voltage circuit for injector #3.
  • Audi Specifics:
    Audi may use a different description for this code depending on the model and year. Consult Audi technical manuals or a specialized diagnostic tool for more details.

2. Common Symptoms

  • 🚨 Check Engine Light On (or “Service Engine Soon” message).
  • 🛑 Performance Issues:
  • Misfire on cylinder 3.
  • Unstable idle or stalling.
  • Loss of power or hesitant acceleration.
  • ⚡ Abnormal Fuel Consumption.

3. Possible Causes

  • Faulty Injector:
  • Internal failure of injector #3 (coil or internal circuit).
  • Electrical Problems:
  • Injector #3 wiring harness open, shorted, or damaged.
  • Injector connector corroded, loose, or with bent/broken pins.
  • Other Causes:
  • Engine Control Module (ECU) failure in rare cases.

4. Diagnostic Procedures

Preliminary Steps

  1. Check for Related Codes:
  • Use an OBD-II scanner to identify other stored codes (e.g., P0203, P0263).
  1. Visual Inspection:
  • Inspect the #3 injector wiring harness, connector, and adjacent components for:
    • Exposed wires, chafing, or burns.
    • Corrosion, oxidation, or damaged pins.

Electrical Tests

  • Continuity Test:
  • Use a multimeter to check for no breaks in the injector circuit.
  • Injector Resistance Test:
  • Disconnect the injector and measure its resistance (compare with Audi specifications, typically between 12-18 Ω).
  • Voltage Test:
  • Check the supply voltage (12V) with the key in the “ON” position.

Swap Test

  • Swap injector #3 with another cylinder:
  • If the code moves (e.g., to P1044), the injector is faulty.

5. Recommended Repair

  • Replace injector #3:
  • If the injector is faulty, use an OEM or equivalent quality part.
  • Repair the wiring/connector:
  • Solder/replace damaged wires.
  • Clean contacts with electrical contact cleaner or replace the connector.
  • Reset the code:
  • Clear the code with a scanner and perform a road test to confirm the repair.

6. Mistakes to Avoid

  • Ignoring related codes: A P0641 code (5V supply issue) could mask the real cause.
  • Neglecting grounding: Check the engine and ECU ground connections.
  • Forgetting reprogramming: Some Audi models require ECU adaptation after injector replacement.

7. Recommended Tools

  • Audi-compatible OBD-II scanner (e.g., VCDS, ODIS).
  • Digital multimeter.
  • Oscilloscope (for analyzing injector signal).

In summary: Code P1043 on an Audi points to an electrical or mechanical problem with injector #3. A methodical approach (inspection, electrical tests, swapping) helps identify the exact cause. If in doubt, consult Audi TSBs or a certified specialist.

P1043 VOLKSWAGEN – Injector 3 Power Supply Short Circuit

P1043 VOLKSWAGEN Possible Causes

  • Faulty Injector 3
  • Injector 3 Harness is Open or Shorted
  • Poor Electrical Connection in Injector 3 Circuit

How is P1043 VOLKSWAGEN Code Repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated 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)

P1043 VOLKSWAGEN Meaning

Injector 3 Supply Voltage Short Circuit is the generic description for Volkswagen P1043 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the OBDII P1043 Volkswagen code.

P1044 – Malfunction in Injector 3 Power Supply Voltage Circuit

P1044 Possible Causes

  • Faulty injector 3
  • Injector 3 harness is open or shorted
  • Poor electrical connection in injector 3 circuit

How is code P1044 repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated 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)

P1044 Meaning

Injector 3 supply voltage circuit malfunction is the generic description for code P1044, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about OBDII code P1044.

P1044 AUDI – Malfunction in Injector 3 Power Supply Voltage Circuit

P1044 AUDI Possible Causes

  • Faulty Injector 3
  • Injector 3 Circuit Open or Shorted
  • Poor Electrical Connection in Injector 3 Circuit

How is the AUDI P1044 Code Repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated 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)

P1044 AUDI Meaning

Injector 3 Supply Voltage Circuit Malfunction is the generic description for Audi P1044 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Audi P1044 OBDII code.