Pre-Crash Safety System Problem Symptoms Table

Pre-Crash Safety System -- Problem Symptoms Table


HINT:
  1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Pre-crash Safety System
Symptom
Suspected Area
See page
"CHECK PCS SYSTEM" is displayed
Seat belt control ECU
LandCruiser RM000003UX700KX.html
"PCS TEMPORARILY NOT AVAILABLE" is displayed
System determines obstacles cannot be detected due to millimeter wave radar sensor assembly or radiator grille being dirty. If dirt is removed, normal control returns (dirt history can be checked using Data List).
LandCruiser RM0000043KP00GX.html
System determines millimeter wave radar sensor assembly cannot detect obstacles due to bad weather. If weather recovers, normal control returns (bad weather history can be checked using Data List).
LandCruiser RM0000043KP00GX.html
Overheating prevention function of seat belt control ECU or millimeter wave radar sensor assembly operates. If ECU temperature drops, normal control returns.
-
Pre-crash brake cancel switch circuit
LandCruiser RM0000043KN012X.html
Millimeter wave radar sensor assembly
LandCruiser RM000002MC401LX.html
Seat belt control ECU
LandCruiser RM000003UX700KX.html
Driving support ECU
LandCruiser RM000002OJO01NX.html
Although there is possibility of collision, pre-crash control (all front collision controls) does not operate ("PCS TEMPORARILY NOT AVAILABLE" is not displayed)
Vehicle condition/environment does not match pre-crash control operation conditions (confirm control operation conditions)
LandCruiser RM0000043K3009X.html
Check installation condition of millimeter wave radar sensor assembly
LandCruiser RM000002MC201LX.html
Perform millimeter wave radar sensor assembly adjustment
LandCruiser RM000000WQG01ZX.html
Millimeter wave radar sensor assembly
LandCruiser RM000002MC401LX.html
Driving support ECU
LandCruiser RM000002OJO01NX.html
Although there is no possibility of collision, pre-crash control (all front collision controls) operates
Vehicle condition/environment match pre-crash control operation conditions (confirm control operation conditions)
LandCruiser RM0000043K3009X.html
Check millimeter wave radar sensor assembly
LandCruiser RM000002MC201LX.html
Perform millimeter wave radar sensor assembly adjustment
LandCruiser RM000000WQG01ZX.html
Millimeter wave radar sensor assembly
LandCruiser RM000002MC401LX.html
Driving support ECU
LandCruiser RM000002OJO01NX.html
Only pre-crash seat belt does not operate
Buckle switch error (malfunction in which DTC is not output)
-
Seat belt control ECU
LandCruiser RM000003UX700KX.html
Pre-crash brake cannot be canceled (pre-crash safety warning indicator does not illuminate)
Combination meter assembly (check if indicator blinks using Active Test)
LandCruiser RM0000043KP00GX.html
Pre-crash brake cancel switch circuit
LandCruiser RM0000043KN012X.html
Driving support ECU
LandCruiser RM000002OJO01NX.html