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Home >> Toyota >> 2008 >> Camry Base, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Lighting (Except Hybrid) >> Lighting System >> Headlight (HI-BEAM) Circuit >> Inspection Procedure

Inspection Procedure

  1. PERFORM ACTIVE TEST BY TECHSTREAM 
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch on (IG).
    3. Turn Techstream on.
    4. Select the following menu items: Body Electrical / Main Body / Active Test.
    5. Check that the relay operates.

      Main Body: 

      DATA LIST REFERENCE

      Tester Display Test Part Control Range Diagnostic Note
      Head Light (Hi) HI-beam headlight relay ON/OFF -

      OK: 

      Relay operates. (HI-beam headlights illuminate.) 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

    NG: Go to next step 

  2. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      ID-3 (HRLY) - Body ground Light control switch OFF → HEAD 10 to 14 V → Below 1 V
      ID-9 (DRL) - Body ground Light control switch in HEAD, dimmer switch LOW → HIGH 10 to 14 V → Below 1 V
      2. Fig 1: Identifying Instrument Panel J/B Assembly Connector
      G04980083Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK:  Go to step  6

    NG: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B ASSEMBLY - BATTERY AND BODY GROUND) 
    1. Disconnect the 1G engine room J/B assembly connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      1G-1 - Body ground Always 10 to 14 V
      Fig 2: Identifying Engine Room J/B Assembly
      G04980078Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the 1E engine room J/B assembly connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      1E-11 - Body ground Always Below 1 Ω
      5. Fig 3: Identifying 1E Engine Room J/B Assembly Connector Terminal
      G04980085Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY 
    1. Reconnect the 1G and 1E engine room J/B assembly connectors.
    2. Disconnect the 1D engine room J/B assembly connector.
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      1D-8 - Body ground Always 10 to 14 V
      1D-9 - Body ground Always 10 to 14 V
    Fig 4: Identifying 1D Engine Room J/B Assembly Connector Terminal
    G04980079Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY (POWER DISTRIBUTOR) 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (ENGINE ROOM J/B ASSEMBLY - INSTRUMENT PANEL J/B ASSEMBLY) 
    1. Reconnect the 1D engine room J/B assembly connector.
    2. Disconnect the ID instrument panel J/B connector.
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      ID-3 (HRLY) - Body ground Always 10 to 14 V
      ID-9 (DRL) - Body ground Always 10 to 14 V
      4. Fig 5: Identifying 1D Engine Room J/B Assembly Connector Terminal
      G04980087Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

  6. CHECK HARNESS AND CONNECTOR (SHORT IN RELAY-DRIVEN CIRCUIT) 
    1. Remove the H-LP (RH) fuse from the engine room J/B assembly.
    2. Turn the light control switch to the HEAD position and turn the dimmer switch to the HIGH position.
    3. Check if the high beam headlight LH illuminates.
    4. Turn the dimmer switch to the LOW position.
    5. Install the H-LP (RH) fuse and remove the H-LP (LH) fuse.
    6. Turn the dimmer switch to the HIGH position.
    7. Check if the high beam headlight RH illuminates.

      OK: 

      Either high beam headlight LH or RH illuminates. 

      8. Fig 6: Identifying H-LP (RH) Fuse From Engine Room J/B Assembly
      G04980088Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (SHORT CIRCUIT BETWEEN FUSE AND BULB) 

    NG: Go to next step 

  7. INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY 
    1. Remove the H-LP (RH) fuse and H-LP (LH) fuse from the engine room J/B assembly.
    2. Measure the voltage between the loading slot of each fuse and body ground.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      H-LP (RH) Terminal - Body ground Light control switch in HEAD and dimmer switch in HIGH 10 to 14 V
      H-LP (LH) Terminal - Body ground Light control switch in HEAD and dimmer switch in HIGH 10 to 14 V
      Fig 7: Identifying H-LP (RH) Fuse And H-LP (LH) Fuse From Engine Room J/B Assembly
      G04980089Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY (POWER DISTRIBUTOR) 

    OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (OPEN CIRCUIT BETWEEN FUSE AND BODY GROUND) 

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