PARK ASSIST / MONITORING  TOYOTA PARKING ASSIST-SENSOR SYSTEM  HOW TO PROCEED WITH TROUBLESHOOTING  

Measure the auxiliary battery voltage with the ignition switch off.

Standard voltage:

11 to 14 V

If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.

Use the GTS to check if the CAN communication system is functioning normally.

for GTMC Made Gasoline Model:

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for GTMC Made Gasoline Model)>DIAGNOSIS SYSTEM202405,999999,_57,_083091,_0694856,RM100000002LVP4,

for GTMC Made HV Model:

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for GTMC Made HV Model)>DIAGNOSIS SYSTEM202405,999999,_57,_083091,_0694855,RM100000002LVP2,

for SFTM Made Gasoline Model:

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for SFTM Made Gasoline Model)>DIAGNOSIS SYSTEM202405,999999,_57,_083091,_0694854,RM100000002LVP6,

for SFTM Made HV Model:

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for SFTM Made HV Model)>DIAGNOSIS SYSTEM202405,999999,_57,_083091,_0694853,RM100000002LUHO,

Result:

Result	Proceed to
CAN communication system DTCs are not output	A
CAN communication system DTCs are output	B

Check for DTCs.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM>DTC CHECK / CLEAR202409,999999,_56,_083082,_0711991,RM100000002NQCG,

Body Electrical > Clearance Warning > Trouble Codes

50001 438

Clear the DTCs.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM>DTC CHECK / CLEAR202409,999999,_56,_083082,_0711991,RM100000002NQCG,

Body Electrical > Clearance Warning > Clear DTCs

50002 438

Recheck for DTCs.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM>DTC CHECK / CLEAR202409,999999,_56,_083082,_0711991,RM100000002NQCG,

Body Electrical > Clearance Warning > Trouble Codes

50001 438

Result:

Result	Proceed to
DTCs are output	A
DTCs are not output	B

Refer to Diagnostic Trouble Code Chart.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM>DIAGNOSTIC TROUBLE CODE CHART202409,999999,_56,_083082,_0711991,RM100000002NQCI,

Check for vehicle control history and note any codes that are output.

Body Electrical > Clearance Warning > Utility

Tester Display
Vehicle Control History (RoB)

50005 438 64

Refer to Symptom Simulation.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING201910,999999,_V1,_083040,_0402301,RM100000001JHCA,

Refer to Problem Symptoms Table.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM>PROBLEM SYMPTOMS TABLE202409,999999,_56,_083082,_0711991,RM100000002NQCD,

Result:

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

Terminals of ECU

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM>TERMINALS OF ECU202409,999999,_56,_083082,_0711991,RM100000002NQCE,

Data List / Active Test

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM>DATA LIST / ACTIVE TEST202409,999999,_56,_083082,_0711991,RM100000002NQCH,