P0A87 Fault Code

14 Volt Power Module Current Sensor Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0A87 code indicates an issue with the 14 Volt Power Module Current Sensor Circuit. This fault typically arises when the current sensor's readings are outside the expected range. Proper functioning of this sensor is vital for the vehicle's hybrid or electric system, as it monitors the electrical current flowing to and from the power module.

What are the symptoms of the P0A87 code?

Symptoms associated with the P0A87 fault code can include:

• Warning lights on the dashboard (such as the check engine light)
• Reduced performance or efficiency of the hybrid system
• Difficulty in starting the vehicle or unexpected shutdowns
• Increased fuel consumption or battery drain

What causes the P0A87 code?

Common causes of the P0A87 fault code include:

• Short circuit or open circuit in the current sensor wiring
• Faulty current sensor itself
• Corroded or loose electrical connectors affecting the sensor's signal
• Issues within the power module affecting current performance

How to fix P0A87?

To resolve the P0A87 code, consider the following steps:

• Inspect the wiring and connectors for damage, corrosion, or disconnections. Repair or replace as necessary.
• Test the current sensor with a multimeter to ensure it operates within the specified range. Replace if defective.
• Check the power module for any internal faults that may affect its performance.
• Clear the fault code and perform a test drive to see if it reappears. If resolved, monitor system performance over time.