P0A55

Symptoms

• Check Engine light comes on
• Hybrid system power reduction
• The car goes into emergency mode
• Increased fuel consumption
• Problems with switching hybrid system modes

Causes

• Open or short circuit in the sensor circuit
• Malfunction of the current sensor itself
• Connector problems or contact corrosion
• Malfunction of the hybrid system control module (HPCM)
• Wiring harness damage

How to Fix

1. Check the continuity of the current sensor circuit
2. Inspect connectors and contacts for damage
3. Check the resistance of the current sensor
4. Replace faulty current sensor if necessary
5. Check and replace wiring harness if necessary

Related codes

Error P0A55 by Vehicle Brand