Section 349 (Electric Motor Power Steering - Diagnostics)
WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
- How To Proceed With Troubleshooting
- Customer Problem Analysis Check
- Pre-Check
- Diagnostic Trouble Code Chart
- Parts Location
- Terminals Of Ecu
- Problem Symptoms Table
- Circuit Inspection
- DTC C1511/11-C1514/14: Torque Sensor Circuit Malfunction
- DTC C1515/15: Torque Sensor Zero Point Calibration Not Performed
- DTC C1516/16: Calibration Of Torque Sensor Zero Point Not Completed
- DTC C1521/21-C1524/24: Motor Circuit Malfunction
- DTC C1531/31-C1533/33, C1555/55: EMPS Ecu Circuit Malfunction
- DTC C1541/41-C1543/43: Speed Sensor Malfunction & DTC C1571/71, C1572/72: Speed Sensor Malfunction (Test Mode)
- DTC C1551/51: IG Power Source Circuit Malfunction
- DTC C1552/52: Pig Power Source Circuit
- DTC C1553/53: When Resetting Voltage, Vehicle Is Being Driven
- DTC C1554/54: EMPS Relay Circuit
- DTC C1556/56: P/S Warning Light Circuit
- DTC C1557/57: Memory Of Overheat Prevention Control, DTC C1558/58: Memory Of Voltage Drop At Motor Power Supply, DTC C1559/59: Memory Of Continuous Control Under High Load
- DTC Always On: Malfunction In EMPS Ecu
- Tc TERMINAL CIRCUIT
- Ts TERMINAL CIRCUIT