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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSY 
    1. Disconnect the 2D connector from the instrument panel junction block assy.
      Fig 1: Disconnecting 2D Connector
      G03049318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a service wire, connect 2D-3 of the wire harness side and body ground.

      OK: Headlamp comes on. 

    1. NG: Go to step   2 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
  2. INSPECT ENGINE ROOM J/B 
    1. Disconnect the 1H connector from the instrument panel junction block assy.
      Fig 2: Disconnecting 1H Connector
      G03049319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a service wire, connect 1H-11 of the engine room J/B and body ground.

      OK: Headlamp comes on. 

    1. NG: Go to step   3 
    2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM J/B - INSTRUMENT PANEL JUNCTION BLOCK ASSY) 
  3. INSPECT ENGINE ROOM J/B 
    1. Measure the voltage according to the value(s) in SPECIFIED VOLTAGE  .

      Standard: 

      SPECIFIED VOLTAGE

      Tester connection Condition Specified voltage (V)
      1H-11 - Body ground Always 10 to 14 V
      Fig 3: Measuring Voltage IH-11 To Body Ground
      G03049320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step   6 
    2. OK: Go to Next Step. 
  4. INSPECT ENGINE ROOM J/B 
    1. Remove the HEAD relay from the engine room J/B.
    2. Using a service wire, connect terminals 5 and 3 of the HEAD relay in the engine room J/B.

      OK: Headlamp comes on. 

      Fig 4: Connecting Terminals 5 & 3 Of Head Relay
      G03049321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step   5 
    2. OK: REPLACE HEADLAMP RELAY 
  5. INSPECT ENGINE ROOM J/B 
    1. Measure the voltage according to the value(s) in SPECIFIED VOLTAGE  .

      Standard: 

      SPECIFIED VOLTAGE

      Tester connection Condition Specified voltage (V)
      1F-3 - Body ground Always 10 to 14 V
      Fig 5: Measuring Voltage 1F-3 To Body Ground
      G03049322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE ENGINE ROOM J/B 
    2. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (EACH OF HEADLAMP CIRCUIT) 
  6. INSPECT ENGINE ROOM J/B 
    1. Remove the HEAD relay from the engine room J/B.
    2. Measure the voltage according to the value(s) in SPECIFIED VOLTAGE  .

      Standard: 

      SPECIFIED VOLTAGE

      Tester connection Condition Specified voltage (V)
      1 - Body ground Always 10 to 14 V
      Fig 6: Measuring Voltage 1 To Body Ground Of Head Relay
      G03049323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step   7 
    2. OK: REPLACE HEADLAMP RELAY 
  7. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Disconnect the 1A connector from the engine room junction block assy.
    2. Measure the voltage according to the value(s) in SPECIFIED VOLTAGE  .

      Standard: 

      SPECIFIED VOLTAGE

      Tester connection Condition Specified voltage (V)
      1A-2 - Body ground Always 10 to 14 V
      Fig 7: Measuring Voltage 1A-2 To Body Ground
      G03049324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE ENGINE ROOM J/B 
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