TOYOTA PARKING ASSIST-SENSOR SYSTEM (for 4 Sensor Type) Indicator Circuit

DESCRIPTION

The warning indicator lights are installed in the clearance warning indicator assembly.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING INDICATOR - BATTERY)

   
   
   1. 

      Text in Illustration

      *a	Front view of wire harness connector (to Clearance Warning Indicator Assembly)

      Disconnect the G14 clearance warning indicator assembly connector.

   2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition G14-9 (BD) - Body ground Ignition switch ON 11 to 14 V

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

2. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - CLEARANCE WARNING INDICATOR)

   
   

   1. Disconnect the I1 clearance warning ECU connector.

   2. Disconnect the G14 clearance warning indicator light assembly connector.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition I1-15 (L1) - G14-5 (OP) Always Below 1 Ω I1-17 (L3) - G14-6 (BK) Always Below 1 Ω I1-19 (L5) - G14-7 (RL) Always Below 1 Ω I1-20 (L6) - G14-8 (RR) Always Below 1 Ω I1-15 (L1) - Body ground Always 10 kΩ or higher I1-17 (L3) - Body ground Always 10 kΩ or higher I1-19 (L5) - Body ground Always 10 kΩ or higher I1-20 (L6) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here