Toyota Parking Assist-Sensor System (W/O Multi-Display) Problem Symptoms Table

Toyota Parking Assist-Sensor System (W/O Multi-Display) -- Problem Symptoms Table


HINT:
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.

TOYOTA Parking Assist-sensor System
Symptom
Suspected Area
See page
System does not operate at all (Initial check function also does not operate)
Proceed to "Clearance Warning ECU Power Source Circuit"
LandCruiser RM000003QOF00OX.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
Clearance warning indicator indicates rear clearance sonar sensor is frozen
Clean the sensor surface
LandCruiser RM000003RMD00RX.html
Proceed to "Rear Clearance Sonar Sensor LH Circuit"
LandCruiser RM000002BJ6026X.html
Proceed to "Rear Clearance Sonar Sensor RH Circuit"
LandCruiser RM000002BJ7026X.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
Clearance warning indicator indicates back sonar sensor is frozen
Clean the sensor surface
LandCruiser RM000003RMD00RX.html
Proceed to "Back Sonar Sensor LH Circuit"
LandCruiser RM000002BJ9022X.html
Proceed to "Back Sonar Sensor RH Circuit"
LandCruiser RM000002BJ8022X.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
Clearance warning indicator indicates open in rear clearance sonar sensor circuit
Initial check function
LandCruiser RM000003QOH010X.html
Proceed to "Rear Clearance Sonar Sensor LH Circuit"
LandCruiser RM000002BJ6026X.html
Proceed to "Back Sonar Sensor LH Circuit"
LandCruiser RM000002BJ9022X.html
Proceed to "Back Sonar Sensor RH Circuit"
LandCruiser RM000002BJ8022X.html
Proceed to "Rear Clearance Sonar Sensor RH Circuit"
LandCruiser RM000002BJ7026X.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
Clearance sonar sensors operate when shift lever is not in R, or do not operate even when shift lever is in R
Proceed to "Park/Neutral Position Switch Circuit"*1
LandCruiser RM000002BIZ035X.html
Proceed to "Back-up Light Switch Circuit"*2
LandCruiser RM0000044CS00PX.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
Indicator does not dim at night, or illuminates dimly during daytime
Proceed to "Taillight Relay Circuit"
LandCruiser RM000002CK101YX.html
Proceed to "Clearance Sonar Main Switch Circuit"
LandCruiser RM0000044G200YX.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
Detection operation is normal but clearance warning indicator does not illuminate
Inspect back sonar or clearance sonar switch assembly
LandCruiser RM0000046I300NX.html
Proceed to "Indicator Circuit"
LandCruiser RM000002ZX901TX.html
Replace clearance warning indicator assembly
LandCruiser RM00000470C00DX.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
System operates even when vehicle speed is 10 km/h (6.2 mph) or more
Proceed to "Speed Signal Circuit"
LandCruiser RM000002UD70E2X.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
System operates, clearance warning buzzer does not sound
Proceed to "Clearance Warning Buzzer Circuit"
LandCruiser RM000003QOL01AX.html
Replace No. 1 clearance warning buzzer
LandCruiser RM00000470C00DX.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
Clearance warning buzzer volume is low
Replace No. 1 clearance warning buzzer
LandCruiser RM00000470800XX.html
Replace clearance warning ECU (for LHD)
LandCruiser RM00000466X025X.html
Replace clearance warning ECU (for RHD)
LandCruiser RM00000470500NX.html
  1. *1: for Automatic Transmission
  2. *2: for Manual Transmission