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DTC Check / Clear

  1. CHECK DTC (When Using Techstream) 
    1. Check the DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the ignition switch to ON.
      3. Turn the Techstream on.
      4. Read the DTCs following the prompts on the Techstream screen. Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes.
      5. Check the details of the DTCs. Refer to DIAGNOSTIC TROUBLE CODE CHART .
  2. CLEAR DTC (When Using Techstream) 
    1. Clear the DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the ignition switch to ON.
      3. Turn the Techstream on.
      4. Operate the Techstream to clear the DTCs. Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes.
      5. According to the display on the Techstream, select the trouble code data display with the clear button.
  3. CHECK DTC (When not Using Techstream) 
    1. Check the DTCs.
      1. Using SST, connect terminals TC (13) and CG (4) of the DLC3.
        • SST: 09843-18040 
        Fig 1: Identifying DLC3 Terminals
        GTY301616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Front view of DLC3
      2. Turn the ignition switch to ON.
      3. Read DTCs from the AWD warning light on the combination meter.

        HINT: 

        • If the AWD warning light does not blink, perform relevant troubleshooting procedures. The relevant troubleshooting procedures are in the information listed in the table below.
        • When the system is operating correctly, each light will blink continuously in a pattern of 0.25 seconds on, then 0.25 seconds off.
        • When one DTC is output, each lamp will output the same code at 4 second intervals. (For example, Code 21 would be output as 2 flashes, a 1.5-second pause, and then 1 flash).
        • When 2 or more DTCs are output, each lamp will output a different code at 2.5-second intervals, and when all codes have been output, there will be a 4-second pause and the sequence will repeat.
        • When multiple codes are set, they are output in order starting with the lowest DTC number.
        • See the list of DTCs (See procedure "A").
        Title See Procedure
        AWD warning light does not come ON Refer to AWD Warning Light does not Come ON
        TC and CG Terminal Circuit Refer to TC and CG Terminal Circuit
    2. The codes are explained in the code table.
      AWD Warning Light Number of Blinks Techstream Tester Display
      82 C1280
      83 U0129
      84 U0126
      85 U0100
      86 U0073
      94 C1241
      96 C1296
      97 C1297
      98 C1298
      99 C1299
  4. CLEAR DTC (When not Using Techstream) 
    1. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
      • SST: 09843-18040 
    2. Turn the ignition switch to ON.
    3. Clear the DTCs stored in the 4WD control ECU by depressing the brake pedal 8 times or more within 5 seconds.
      Fig 2: Depressing Brake Pedal
      GTY166164Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Check that the warning light blinks in the normal system code pattern.
    5. Remove SST from the terminals of the DLC3.
    6. Turn the ignition switch off.

      HINT: 

      DTCs cannot be cleared by disconnecting the cable from the negative (-) battery terminal or removing the 4WD fuse.

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