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Home >> Toyota >> 2008 >> Tacoma X-Runner >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Vehicle Stability Control System >> Data List/Active Test

Data List/Active Test

  1. DATA LIST 

    HINT:

    With Techstream connected to the DLC3 and the ignition switch in the ON position, the ABS, TRAC and VSC data list can be displayed. Follow the prompts on the tester screen to access the Data List.

    ABS/VSC/TRAC 

    ABS/VSC/TRAC - DATA LIST

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    H/B Motor Relay HB motor relay/ON or OFF ON: Motor relay ON
    OFF: Motor relay OFF
    -
    Solenoid Relay Solenoid relay/ON or OFF ON: Solenoid relay ON
    OFF: Solenoid relay OFF
    -
    VSC/TRC OFF SW VSC OFF switch/ON or OFF ON: VSC OFF switch ON -
    Main Idle SW Main idle switch/ON or OFF ON: Accelerator pedal released
    OFF: Accelerator pedal depressed
    -
    Stop Light SW Stop lamp switch/ON or OFF ON: Brake pedal depressed
    OFF: Brake pedal released
    -
    Parking Brake SW Parking brake switch/ON or OFF ON: Parking brake applied
    OFF: Parking brake released
    -
    Reservoir Warning SW Reservoir level warning switch/ON or OFF ON: Switch ON
    OFF: Switch OFF
    -
    FR Wheel ABS Control ABS operation (front right)/BEFORE or OPERATE BEFORE: No ABS operation (front right)
    OPERATE: During ABS operation (front right)
    -
    FL Wheel ABS Control ABS operation (front left)/BEFORE or OPERATE BEFORE: No ABS operation (front left)
    OPERATE: During ABS operation (front left))
    -
    RR Wheel ABS Control ABS operation (rear right)/BEFORE or OPERATE BEFORE: No ABS operation (rear right)
    OPERATE: During ABS operation (rear right)
    -
    RL Wheel ABS Control ABS operation (rear left)/BEFORE or OPERATE BEFORE: No ABS operation (rear left)
    OPERATE: During ABS operation (rear left)
    -
    FR Wheel Speed Wheel speed sensor (front right) reading/min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed Similar speed to that indicated on speedometer
    FL Wheel Speed Wheel speed sensor (front left) reading/min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed Similar speed to that indicated on speedometer
    RR Wheel Speed Wheel speed sensor (rear right) reading/min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed Similar speed to that indicated on speedometer
    RL Wheel Speed Wheel speed sensor (rear left) reading/min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed Similar speed to that indicated on speedometer
    Deceleration Sensor 1 Deceleration sensor 1 reading/min.: -1.869 G, max.: 1.869 G Approximately 0 +/- 0.13G is still condition Reading changes when vehicle bounced
    Deceleration Sensor 2 Deceleration sensor 2 reading/min.: -1.869 G, max.: 1.869 G Approximately 0 +/- 0.13G is still condition Reading changes when vehicle bounced
    ECU IG Power Voltage ECU power supply voltage/TOO LOW/NORMAL/TOO HIGH TOO HIGH: 14 V or more
    NORMAL: 9.5 V to 14V
    TOO LOW: Below 9.5 V
    -
    Solenoid (SFRR) ABS solenoid (SFRR)/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SFRH) ABS solenoid (SFRH)/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SFLR) ABS solenoid (SFLR)/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SFLH) ABS solenoid (SFLH)/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRRR) ABS solenoid (SRRR [SRR])/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRRH) ABS solenoid (SRRH [SRH])/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRLR) ABS solenoid (SRLR)/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRLH) ABS solenoid (SRLH)/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRCF) TRAC solenoid (SRCF [SMCF])/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRCR) TRAC solenoid (SRCR [SREA])/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRMF) TRAC solenoid (SRMF [SREC])/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Solenoid (SRMR) TRAC solenoid (SRMR [SMCR, STR])/ON or OFF ON: Operates
    OFF: Does not operate
    -
    Engine Speed Engine Speed/Min.: 0 rpm, Max.: 6000 rpm Actual engine speed -
    Vehicle Speed Maximum wheel speed sensor reading/min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual engine speed Speed indicated on speedometer
    Yaw Rate Sensor Yaw rate sensor/Min.: -128°/s, Max.: 127°/s Min: -1287s
    Max: 127°/s
    -
    Zero Yaw Rate Sensor Memorized zero value/Min.: -1287s, Max.: 127°/s Min:-128°/s
    Max: 1277s
    -
    Steering Angle Sensor Steering sensor/Min.: -1152°, Max.: 1150.875° Left turn: Increase
    Right turn: Decrease
    -
    Master Cylinder Sensor 1 Master cylinder pressure sensor 1 reading/min.: 0 V, max.: 5 V When brake pedal is released : 0.3 V to 0.9 V Reading increases when brake pedal depressed
    Accumulator Sensor Accumulator pressure sensor reading/min.: 0 V, max.: 5 V 3.58 to 5 V If value constant regardless of pump operation, accumulator pressure sensor malfunction suspected.
    FR Wheel Direction Front right wheel direction wheel direction BACK: BACK, FORWARD: FORWARD -
    FL Wheel Direction Front left wheel direction wheel direction BACK: BACK, FORWARD: FORWARD -
    RR Wheel Direction Rear right wheel direction wheel direction BACK: BACK, FORWARD: FORWARD -
    RL Wheel Direction Rear left wheel direction wheel direction BACK: BACK, FORWARD: FORWARD -
    FR Speed Open Front speed sensor RH open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    FL Speed Open Front speed sensor LH open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    RR Speed Open Rear speed sensor RH open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    RL Speed Open Rear speed sensor LH open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    EFI Open SFI communication open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    Yaw Rate Open Yaw rate sensor open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    Deceleration Open Acceleration sensor open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    Steering Open Steering angle sensor open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    Accumulator Open Accumulator pressure sensor open detection/OPN_DET or NORMAL OPN_DET: momentary interruption
    NORMAL: Normal mode
    -
    Accelerator % Different % of present accelerator min.: 0
    max.: 128
    -
    Real output torque Real output torque min.:-1024
    max.: 1016
    -
    Test Mode Test mode/Normal or TEST NORMAL: Normal mode
    TEST: During test mode
    -
    Number of DTC Number of DTC recorded/min.: 0, max.: 255 min.: 0
    max.: 255
    -
  2. ACTIVE TEST 

    HINT:

    Performing the Active Test using Techstream allows relays and actuators to be operated without removing any parts. Performing the Active Test as the first step of troubleshooting is one method of shortening diagnostic time.

    It is possible to display the Data List during the Active Test.

    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch to the ON position.
    3. Turn the tester ON.
    4. According to the display on the tester, perform the Active Test.

      HINT:

      The ignition switch must be turned to the ON position to proceed to the  2Active Test using Techstream.

      ABS/VSC/TRAC 

      ABS/VSC/TRAC - ACTIVE TEST

      Tester Display Test Part Control Range Diagnostic Note
      ABS Solenoid (SFRR) Turns ABS solenoid (SFRR) ON/OFF Operation of solenoid (clicking sound)can be heard
      ABS Solenoid (SFRH) Turns ABS solenoid (SFRH) ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SFLR) Turns ABS solenoid (SFLR) ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SFLH) Turns ABS solenoid (SFLH) ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SRRR) Turns ABS solenoid (SRRR) ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SRRH) Turns ABS solenoid (SRRH) ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SRLR) Turns ABS solenoid (SRLR) ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SRLH) Turns ABS solenoid (SFLH) ON/OFF Operation of solenoid (clicking sound) can be heard
      TRC Solenoid (SRCF) Turns TRAC solenoid SRCF (SMCF) ON/OFF Operation of solenoid (clicking sound) can be heard
      TRC Solenoid (SRCR) Turns TRAC solenoid SRCR (SREA) ON/OFF Operation of solenoid (clicking sound) can be heard
      TRC Solenoid (SRMF) Turns TRAC solenoid SRCR (SREA) ON/OFF Operation of solenoid (clicking sound) can be heard
      TRC Solenoid (SRMR) Turns TRAC solenoid SRMF (SMEC) ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SFLR & SFLH) Turns ABS solenoid SFLR & SFLH ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SRH & SRR) Turns ABS solenoid SRH & SRR ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SRLR & SRLH) Turns ABS solenoid SRLR & SRLH ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Solenoid (SFRH & SFLH) Turns ABS solenoid SFRH & SFLH ON/OFF Operation of solenoid (clicking sound) can be heard
      TRC Solenoid (SRCF & SRCR) Turns ABS solenoid SRCF & SRCR ON/OFF Operation of solenoid (clicking sound) can be heard
      TRC Solenoid (SRMF & SRMR) Turns ABS solenoid SRMF & SRMR ON/OFF Operation of solenoid (clicking sound)can be heard
      Solenoid Relay Turns ABS solenoid relay ON/OFF Operation of solenoid (clicking sound) can be heard
      ABS Warning Light Turns ABS warning light ON/OFF Observe combination meter
      VSC/TRC OFF Indicator Light Turns VSC OFF indicator ON/OFF Observe combination meter
      Slip Indicator Light Turn SLIP indicator light ON/OFF Observe combination meter
      Brake Warning Light Turns BRAKE warning light ON/OFF Observe combination meter
      VSC H/B Warning Buzzer Turns VSC/BRAKE warning buzzer ON/OFF Buzzer can be heard
      H/B Motor Relay Turns H/B motor relay ON/OFF Operation of motor can be heard
      Stop Light Relay Turns stop light relay ON/OFF Observe stop lights
      VSC Warning Light Turns VSC warning light ON/OFF Observe combination meter