P1552 Battery Current Sensor Circuit High Input (Hybrid)

Category: Powertrain - Computer and Auxiliary Controls
Severity: Check Engine Light
Applies to: Prius, Camry Hybrid

What does P1552 mean on a Toyota?

P1552 — Battery Current Sensor Circuit High Input (Hybrid). This Toyota-enhanced code applies to Prius, Camry Hybrid.

Common causes of P1552

Open current sensor circuit
Failed sensor stuck high
Unplugged connector
Broken wire
Module fault

How to fix P1552

Reseat the sensor connector
Test circuit continuity
Measure sensor output
Repair wiring faults
Replace the sensor if the circuit is intact