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Home >> Lexus >> 2013 >> IS 250 Base, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Four Wheel Drive Control System (Diagnostics - Introduction)) >> Four Wheel Drive Control System >> Data List/Active Test [08/2012 - ] >> Data List/Active Test [08/2012 - ]
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Data List/Active Test [08/2012 - ]

WARNING: This page is about a different variant/trim than selected.

HINT: 

By accessing the Data List displayed on the Techstream, you can perform such functions as reading the values of switches and sensors without removing any parts. Reading the Data List is the first step in troubleshooting and is one method to shorten labor time.

  1. DATA LIST OF 4WD CONTROL ECU 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Following the display on the Techstream, select "Data List".
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      4WD Warning Lamp 4WD Indicator Light /
      OFF or ON
      OFF: 4WD indicator light off
      ON: 4WD indicator light on
      -
      Slip Indicator Lamp Slip Indicator Light /
      OFF or ON
      OFF: SLIP indicator light off
      ON: SLIP indicator light on
      -
      Stop Lamp SW Stop Light Switch /
      OFF or ON
      OFF: Brake pedal released
      ON: Brake pedal depressed
      -
      Steering Angle Value Steering Angle Value /
      Min.: -3276.8 deg,
      Max.: 3276.7 deg
      Left: -3276.8 deg
      Center: Approx. 0 deg
      Right: 3276.7 deg
      -
      FR Wheel Speed FR Wheel Speed /
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Almost no difference from the speedometer
      FL Wheel Speed FL Wheel Speed /
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Almost no difference from the speedometer
      RR Wheel Speed RR Wheel Speed /
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Almost no difference from the speedometer
      RL Wheel Speed RL Wheel Speed /
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Min.: 0 mph (0 km/h),
      Max.: 202 mph (326.4 km/h)
      Almost no difference from the speedometer
      SLC Solenoid Current SLC Solenoid (transfer control solenoid) Current /
      Min.: 0 A
      Max.: 1 A
      Min.: 0 A
      Max.: 1 A
      -
      Number of DTC Number of DTCs /
      0 to 255
      0 to 255 -
  2. ACTIVE TEST OF 4WD CONTROL 

    HINT: 

    Performing the Active Test using the Techstream allows the relay, actuator, etc. to operate without removing any parts. Performing the Active Test as the first step in troubleshooting is one way to shorten labor time. It is possible to display the Data List during the Active Test.

    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Following the display on the Techstream, select "Active Test".
      Tester Display Test Part Control Range Diagnostic Note
      4WD Warning Lamp 4WD Indicator Light ON: 4WD indicator light on
      OFF: 4WD indicator light off
      Observe multi-information display
      Slip Indicator Lamp SLIP Indicator Light ON: SLIP indicator light on
      OFF: SLIP indicator light off
      Observe multi-information display