[SOLVED] Fix Accessory Power Relay With U3004 Code Solution

The automobile fault code U3004 indicates a problem with the Accessory Power Relay circuit, which can cause the Anti-Lock Brake System (ABS) Warning Light and Engine Light to turn on. The fault may be due to a faulty Accessory Power Relay, an open or shorted harness, or poor electrical connection.

It is important to visually inspect the wiring harness and connectors for any damage or corrosion.

The repair time for this fault is estimated at 1.0.

To interpret the fault code, check the “Possible Causes” listed above and follow the recommended fix.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the ABS warning light and engine light on, it could be a sign of the u3004 fault code.

  • The automobile fault code u3004 has the following symptoms: Anti-Lock Brake System (ABS) Warning Light ON, Engine Light ON (or Service Engine Soon Warning Light).

The automobile fault code u3004 can be caused by a faulty relay, open or shorted harness, or poor electrical connection.

  • The automobile fault code u3004 can be caused by a faulty Accessory Power Relay.
  • It can also be caused by an open or shorted Accessory Power Relay harness.
  • Additionally, a poor electrical connection in the Accessory Power Relay circuit can also trigger this fault code.

Below are some possible fixes for the automobile fault code u3004, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code u3004, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code U3004 has an estimated repair time of 1.0 hour. The cost of fixing this fault code is influenced by the repair time.

Most auto repair shops charge between $75 and $150 per hour for their services. Therefore, the fixing cost of U3004 will range between $75 and $150, depending on the repair time required.

It is important to consider the repair time when estimating the fixing cost of this fault code.

The u3004 fault code is related to the Power Steering Control Module (PSCM) in the Electric Power-Assisted Steering (EPAS) system of a vehicle. The PSCM monitors various inputs and outputs of the EPAS system to ensure it is operating at peak capacity.

The u3004 code specifically refers to an issue with the Accessory Power Relay, which may require a new PSCM and documentation for billing purposes.

What are the possible causes of the u3004 automobile fault code?

If you’re experiencing an Anti-Lock Brake System (ABS) Warning Light ON and an Engine Light ON (or Service Engine Soon Warning Light), it could be due to a faulty Accessory Power Relay, an open or shorted Accessory Power Relay harness, or a poor electrical connection in the Accessory Power Relay circuit. To fix this, check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components or connector pins.

How can the Accessory Power Relay harness be checked for faults?

If you’re experiencing an ABS warning light or engine light on, it could be due to a faulty Accessory Power Relay or an open/shorted Accessory Power Relay harness. To fix this issue, visually inspect the wiring harness and connectors for any damage or corrosion. Check for broken, bent, pushed out, or corroded connector pins.

What steps should be taken to fix the u3004 fault code?

If you’re experiencing an ABS warning light and an engine light, it could be due to a faulty Accessory Power Relay or poor electrical connection. To fix the u3004 fault code, visually inspect the wiring harness and connectors for any damage or corrosion. Check for broken, bent, or pushed out connector pins.

u3004 error fault code explained

If your Anti-Lock Brake System (ABS) Warning Light and Engine Light are on, it may be due to a faulty Accessory Power Relay or poor electrical connection.

Visually inspect the wiring harness and connectors for damage and check for broken or corroded pins.

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