DTC Check/Clear

WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.

SUPPLEMENTAL RESTRAINT SYSTEM DTC CHECK (USING SST CHECK WIRE)
1. Output the DTCs (Present trouble code).
  1. Turn the ignition switch to the ON position, and wait for approximately 60 seconds.
  2. Using an SST, connect the terminals TC and CG of the DLC3.
    SST 09843-18040
  NOTE: Pay attention to the terminal connecting position to avoid causing a malfunction.
2. Output the DTCs (Past trouble code).
  1. Using an SST, connect the terminals TC and CG of the DLC3.
    SST 09843-18040
    
    NOTE: Pay attention to the terminal connecting position to avoid causing a malfunction.
  2. Turn the ignition switch to the ON position, and wait for approximately 60 seconds.
    
    Fig 1: Identifying DLC3 Connector terminals
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Read the DTCs.
  1. Read the blinking patterns of the DTCs. Examples, the blinking patterns for normal system code, code 11 and code 31 are shown in the illustration to the left.
    - Normal system code indication (w/o past trouble code)
      The light blinks twice per second.
    - Normal system code indication (w/ past trouble code)
      When the past trouble code is stored in the airbag sensor assy center, the light blinks only once a second.
    - Trouble code indication
      The first blinking indicates the first DTC. The seconds blinking occurs after a 1.5-second pause.
      
      If there are 2 or more codes, there will be a 2.5-second pause between each code. After all codes are shown, there will be a 4.0-second pause, and they will all be repeated.
  HINT:
  
  If 2 or more malfunctions are found, the indication begins with the smaller numbered code.
  
  Fig 2: Identifying Blinking Patterns For Normal System Code And Trouble Codes 11 And 31
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Clear the DTCs.
  1. When the ignition switch is turned OFF, the DTCs are cleared.
    HINT:
    
    Depending on the DTC, the code may not be cleared by turning off the ignition switch. In this case, proceed to the next procedure.
  2. Using an SST, connect the TC and CG of the DLC3, and then turn the ignition switch to the ON position.
    SST 09843-18040
  3. Disconnect the TC of the DLC3 within 3 to 10 seconds after the DTCs are output, and check if the SRS warning light comes on after 3 seconds.
  4. Within 2 to 4 seconds after the SRS warning light comes on, connect the TC and CG of the DLC3.
  5. The SRS warning light should go off within 2 to 4 seconds after connecting the TC and CG of the DLC3. Then, disconnect the TC terminal within 2 to 4 seconds after the SRS warning light goes off.
  6. The SRS warning light comes on again within 2 to 4 seconds after disconnecting the TC terminal. Then, reconnect terminals TC and CG within 2 to 4 seconds after the SRS warning light comes on, connect the TC and CG of the DLC3.
  7. Check if the SRS warning light goes off after 2 to 4 seconds after connecting the TC and CG of the DLC3, and the normal code is output within 1 second after the SRS warning light goes off.
    If DTCs are not cleared, repeat the procedure (d) until the codes are cleared.
    
    Fig 3: Identifying Blinking Patterns Of SRS Warning Light
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
SUPPLEMENTAL RESTRAINT SYSTEM DTC CHECK (USING HAND-HELD TESTER)
1. Check the DTCs.
  1. Connect the hand-held tester to the DLC3.
  2. Turn the ignition switch to the ON position.
  3. Check the DTCs by following the prompts on the tester screen.
  [System Selection Screen]
  
  "1: DIAGNOSIS" - "1: OBD/MOBD" - "MODEL YEAR" - "MODEL SELECTION = RX330" - Select the option parts - "8: SRS AIRBAG" - "2: DTC INFO" - "1: PRESENT CODES"
  
  HINT:
  
  Refer to the hand-held tester operator's manual for further details.
2. Clear the DTCs.
  1. Connect the hand-held tester to the DLC3.
  2. Turn the ignition switch to the ON position.
  3. Clear the DTCs by following the prompts on the tester screen.
    [System Selection Screen]
    
    "1: DIAGNOSIS" - "1: OBD/MOBD" - "MODEL YEAR" - "MODEL SELECTION = RX330" - Select the option parts - "8: SRS AIRBAG" - "2: DTC INFO" - "4: CLEAR CODES"
    
    HINT:
    
    Refer to the hand-held tester operator's manual for further details.
OCCUPANT CLASSIFICATION SYSTEM DTC CHECK (USING HAND-HELD TESTER)
HINT:
- When the DTC B1150/23 is detected as a result of troubleshooting for the supplemental restraint system, perform troubleshooting for the occupant classification system.
- Since the DTCs for the occupant classification system can only be output by the hand-held tester, use the hand-held tester to output the DTCs.
1. Check the DTCs.
  1. Connect the hand-held tester to the DLC3.
  2. Turn the ignition switch to the ON position.
  3. Check the DTCs by following the prompts on the tester screen.
    [System Selection Screen]
    
    "1: DIAGNOSIS" - "1: OBD/MOBD" - "MODEL YEAR" - "MODEL SELECTION = RX330" - Select the option parts - "9: OCCUPANT DETECT" - "2: DTC INFO" - "1: PRESENT CODES"
  HINT:
  
  Refer to the hand-held tester operator's manual for further details.
2. Clear the DTCs.
  1. Connect the hand-held tester to the DLC3.
  2. Turn the ignition switch to the ON position.
  3. Clear the DTCs by following the prompts on the tester screen.
    [System Selection Screen]
    
    "1: DIAGNOSIS" - "1: OBD/MOBD" - "MODEL YEAR" - "MODEL SELECTION = RX330" - Select the option parts - "9: OCCUPANT DETECT" - "2: DTC INFO" - "4: CLEAR CODES"
    
    HINT:
    
    Refer to the hand-held tester operator's manual for further details.