LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2017 >> Prius Prime Advanced >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostics - Introduction >> Pre-Collision System >> Problem Symptoms Table [07/2020 - ] >> Problem Symptoms Table [07/2020 - ]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Problem Symptoms Table [07/2020 - ]

NOTE:

When replacing the meter circuit plate (combination meter assembly), always replace it with a new one. If a meter circuit plate (combination meter assembly) which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

HINT: 

PRE-COLLISION SYSTEM

Symptom Suspected Area Link
"Pre-Collision System Malfunction Visit Your Dealer" is displayed DTC (Pre-collision System) Refer to DTC CHECK / CLEAR [07/2020 - ] 
Vehicle Control History (Pre-collision System) Refer to VEHICLE CONTROL HISTORY [07/2020 - ]
"Pre-Collision System Unavailable" is displayed Vehicle Control History (Pre-collision System) Refer to VEHICLE CONTROL HISTORY [07/2020 - ]
Vehicle Control History (Front Radar Sensor System) Refer to VEHICLE CONTROL HISTORY [07/2020 - ]
"Pre-Collision System Unavailable Clean Sensor" is displayed Vehicle Control History (Front Radar Sensor System) Refer to VEHICLE CONTROL HISTORY [07/2020 - ]
"Front Camera Unavailable See Owner's Manual" is displayed Vehicle Control History (Front Camera System) Refer to VEHICLE CONTROL HISTORY [07/2020 - ]
"Front Camera Unavailable" is displayed Vehicle Control History (Front Camera System) Refer to VEHICLE CONTROL HISTORY [07/2020 - ]
"VSC Turned Off Pre-Collision Brake System Unavailable" is displayed Check whether VSC is off -
Electronically controlled brake system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2016 - ]
Pre-collision system cannot be canceled (PCS warning light does not illuminate) Combination meter assembly (check if indicator illuminates using Active Test) Refer to DATA LIST / ACTIVE TEST [07/2020 - ]
Meter / gauge system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2016 - ]
Steering pad switch assembly Refer to INSPECTION [09/2016 - ]
Meter circuit plate (combination meter assembly) Refer to DISASSEMBLY [09/2016 - ]