The automobile fault code P0AE7 indicates a problem with the System Main Relay. This can be identified by the Engine Light being ON or the Service Engine Soon Warning Light appearing. The cause of this fault code could be a faulty System Main Relay, an open or shorted harness, a poor electrical connection in the relay circuit, or a faulty HV control ECU.

To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins in the connectors. The repair time for this problem is estimated to be 1.0. To interpret the fault code, you can refer to the “Possible Causes” listed above.

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

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p0ae7 fault code.

  • The symptoms of the automobile fault code p0ae7 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0ae7 can be caused by a faulty System Main Relay, an open or shorted System Main Relay harness, a poor electrical connection in the System Main Relay circuit, or a faulty HV control ECU.

  • The fault code P0AE7 can be caused by the following: a faulty System Main Relay, an open or shorted System Main Relay harness, a poor electrical connection in the System Main Relay circuit, or a faulty HV control ECU.

To fix the automobile fault code p0ae7, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0ae7, first, check the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded pins in the connectors.
  • This fix is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p0ae7 are the estimated repair time and the hourly rate charged by auto repair shops. The estimated repair time for this fault code is 1.0 hour.

Auto repair shops typically charge between $75 and $150 per hour for their services. These factors will determine the overall cost of diagnosing and fixing the p0ae7 fault code.

The P0AE7 fault code refers to a problem with the Hybrid Battery Precharge Contactor Control Circuit. This circuit is responsible for connecting and disconnecting the high-voltage power supply in the hybrid vehicle.

The circuit consists of three relays, with two on the positive side and one on the negative side.

When connecting, SMR1 and SMR3 turn on first, followed by SMR2.

This process protects the circuit from high-voltage surge currents. When disconnecting, SMR2 and SMR3 turn off in that order.

The HV control ECU checks that the relays have turned off properly. The HV control ECU monitors the operation of the SMRs to detect any malfunctions.

If the circuit is not functioning properly, the P0AE7 fault code will be triggered.

What are the possible causes for the automobile fault code p0ae7?

If you see the engine light or service engine soon warning light on, the fault code P0AE7 could be the culprit. This code is often caused by a faulty system main relay, an open or shorted relay harness, a poor electrical connection in the relay circuit, or a faulty HV control ECU. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t forget to check the possible causes mentioned above.

How can I visually inspect the wiring harness and connectors to fix the p0ae7 fault code?

If you’re dealing with the p0ae7 fault code and your engine light is on, it’s time to take action. The most common causes of this code are a faulty system main relay, an open or shorted relay harness, a poor electrical connection in the relay circuit, or a faulty HV control ECU. To fix it, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken, bent, pushed out, or corroded pins. This simple step can help you identify and resolve the issue.

What should I look for when checking for damaged components and connector’s pins to resolve the p0ae7 fault code?

When resolving the p0ae7 fault code, start by checking for damaged components and connector’s pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded pins. By doing this, you can identify any issues that may be causing the fault code and take the necessary steps to fix them.

p0ae7 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the p0ae7 fault code might be the culprit. This code is usually caused by a faulty System Main Relay or issues with the relay’s harness and circuit connection.

To fix it, visually inspect the wiring harness and connectors, checking for any damage or corrosion.

Look out for broken, bent, pushed out, or corroded pins on the connectors.

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