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Normal Mode

  1. Normal mode is used for routine testing of vehicle. To read diagnostic trouble codes, ensure battery voltage is at least 11 volts, throttle valve is fully closed, transaxle/transmission is in Neutral and all accessories are off.
  2. All models are equipped with 2 Data Link Connectors (DLCs). Data Link Connector No. 1 (DLC1) is located in engine compartment. Data Link Connector No. 2 (DLC2) is located under left side of instrument panel. See Fig 1. Codes can be retrieved by using DLC1 or DLC2.
  3. To retrieve codes, turn ignition on. DO NOT  start engine. Using a jumper wire, connect terminals E1 and TE1 together either on DLC1 or DLC2. See Fig 2. Count number of flashes from Malfunction Indicator Light (MIL).
    Fig 1: Locating Data Link Connector No. 2 (DLC2)
    G93J78468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Identifying Data Link Connector No. 1 & No. 2 Terminals
    G93F78563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. If MIL flashes 2 times every second, system is functioning properly. This is known as a normal condition. If a diagnostic code is displayed, first group of flashes will indicate first digit of a 2-digit diagnostic code. After a 1.5 second delay, second group of flashes will indicate second digit of diagnostic code.
  5. If more than one code is stored, a 2.5 second delay will occur between diagnostic codes. After all diagnostic codes have been displayed, a 4.5 second delay will occur and then codes will be repeated until jumper wire connecting terminals E1 and TE1 is disconnected. Diagnostic codes will display from smallest to largest number.
  6. Identify and record diagnostic trouble codes. See DIAGNOSTIC TROUBLE CODES  for description of condition(s) that caused code to set and probable trouble area. Identify code in TROUBLE CODE IDENTIFICATION  table and go to appropriate diagnostic code chart. To clear codes, see CLEARING CODES .