Inspection Procedure

1. Using the intelligent tester or Techstream, read the Data List.
   1. Intelligent tester

      BODY NO. 5 

      INTELLIGENT TESTER BODY NO. 5 REFERENCE CHART
      
      

      Tester Display	Measurement Item / Range	Normal Condition	Diagnostic Note
      CLEAR LGT TR	Clearance light illumination condition display /OK - Overheat - Overload	OK: Normal Overheat: ECU overheat Overload: ECU overload	-

   2. Techstream

      Body No. 5 

      TECHSTREAM BODY NO. 5 REFERENCE CHART
      
      

      Tester Display	Measurement Item / Range	Normal Condition	Diagnostic Note
      Clearance Light Tr	Clearance light illumination condition display /OK - Overheat - Overload	OK: Normal Overheat: ECU overheat Overload: ECU overload	-

      OK: Normal condition listed above is displayed. 

NG: Go to step 2 

OK: REPLACE MULTIPLEX NETWORK FRONT LIGHT ECU 

Fig 1: Identifying B14 Multiplex Networking Front Light ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the B14 ECU connector.
2. Disconnect the B2, B12, B1 and B11 light connectors.
3. Measure the resistance according to the value (s) in the table below.

   Standard resistance: 

   for LH 

   TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
   
   

   Tester Connection	Condition	Specified Condition
   B14-23 (CRAL) - Body ground	Always	10 kΩ or higher

   for RH 

   TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
   
   

   Tester Connection	Condition	Specified Condition
   B14-15 (CRAR) - Body ground	Always	10 kΩ or higher

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   OK (for HID Headlight)	A
   OK (for LED Headlight)	B
   NG	C

B:  Go to step  4

C: REPAIR OR REPLACE HARNESS OR CONNECTOR 

A: Go to next step 

1. Temporarily replace the clearance light bulb with a new or normally functioning one (see REMOVAL  ).
2. Check for DTC (see DTC CHECK/CLEAR  ).

   OK: DTC B2482 output does not occur. 

NG: Go to step 4 

OK: END (REPLACE CLEARANCE LIGHT BULB)  (See REMOVAL  )

1. Temporarily replace the headlight with a new or normally functioning one.

   HINT:

   • for HID Headlight (see REMOVAL  ).
   • for LED Headlight (see REMOVAL  ).
2. Check for DTC (see DTC CHECK/CLEAR  ).

   OK: DTC B2482 output does not occur. 

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   NG	A
   OK (for HID Headlight)	B
   OK (for LED Headlight)	C

B: END (REPLACE HEADLIGHT ASSEMBLY)  (See REMOVAL  )

C: END (REPLACE HEADLIGHT ASSEMBLY)  (See REMOVAL  )

A: REPLACE MULTIPLEX NETWORK FRONT LIGHT ECU