P0AE7 - OBD Trouble Code

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What does P0AE7 signify? What are its symptoms and diagnosis? You are looking for a solution, right? Keep reading further. Failure of the high voltage control module is known as the hybrid battery precharge contactor control circuit high. For the proper operation of the high voltage system, relays are being utilized by the high voltage control module and if the control module finds at least one or two of these relays to be faulty, then the P0AE7 error will be stored.

The high voltage power supply circuits will be attached and detached by the SMR depending on the request from the HV control ECU. 3 relays will be available to make sure that the operation is proper- 2 for positive and 1 for negative. To fix, initially turn on SMR1 and SMR3. Then you must turn off SMR1 and turn on SMR2 as this procedure will help to prevent the high voltage flow current by sending the required current through the resistor. The HV control CU will ensure that the relay is turned off correctly. The proper operation of the SMRs (CON1, CON2, and CON3) is carefully looked after by the HV control ECU to see if any system malfunctions.

What causes this problem with the Hybrid Battery Precharge Contactor Control Circuit High?

• The system main relay might be malfunctioning.
• The system main relay might have broken, open or shorted wires.
• The electrical connection of the system main relay might turn out to be weak.
• HV control ECU might be broken

1. Engine Control Module - The behavior of your engine will be very erratic if the ECM is faulty or broken. Get it fixed or replaced as soon as possible.
2. Powertrain Control Module - Powertrain control module will monitor and compensate for any change in altitude and looks after the overall health of your car. The right replacement for your faulty powertrain control module can be found at PartsAvatar at the best prices.
3. Battery Relay - Your vehicle will start functioning normally if the faulty battery relay is immediately replaced.
4. Battery Relay Harness - A damaged battery relay harness can cause performance issue in your vehicle. Replace it quickly to avoid further troubles.
5. Engine Control Unit - Flashing of the check engine light is a sign of faulty ECU. Change it as quickly as possible to avoid P0AE7 error.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P0AE7 code by listing out some major symptoms. They are mentioned below as follows:

Common Symptoms

• The engine performance might be poor.
• Fuel consumption will be more.
• You will see a warning light from the service engine or the engine light may be on.
• Misfiring condition will prevail.

Learn the ways with which you can correct this trouble code:

• Repairing the broken battery.
• The faulty engine control module/ powertrain control module which causes issue needs to be changed.

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of ECU, battery relay, battery relay harness and a lot more. We are sure that now all your issues would be resolved.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0AE7 code to be stored:

• Visually check the wires and connectors which might be contaminated due to engine consistencies between the readings of the input and output speed sensors as interpreted by the PCM as a transmission friction element application defective.
• It is always best to leave this type of error in the hands of the professionals as there are numerous circuits involved.
• Remove the transmission pan, if the fluid smells burnt and look for clutch materials and other debris.
• Low pump pressure might likely arise due to clogged hydraulic passages, a faulty pump, faulty shift solenoids, or a faulty electronic pressure regulator
• With just one sign for a faulty gasket, it is not sufficient to prove that the gasket is faulty, but you will need multiple symptoms to prove the failure of a gasket.
• Whenever you face these symptoms make sure to drive your vehicle as little as possible.
• Based on the symptoms, you can either repair or replace the gasket.
• The cost to repair a gasket usually depends on one mechanic to another.
• In modern engines, because of the location of a gasket and the amount of labor involved, it’s quite expensive to replace a faulty gasket.
• A P0AE7 error code is generally related to a faulty sensor, but replacing them will not solve the original issue.
• The error is most likely caused by the system which the sensor monitors but it can even be caused by the wires which connect the sensor itself.

Common Mistakes When Diagnosing the P0AE7 Code

• There might be some problem with the electrical wires.
• Auxiliary 12V battery might be malfunctioning.
• Damaged high voltage system relay.
• High voltage control module might be damaged