LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2006 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System >> CRUISE CONTROL SYSTEM (w/o Electronic Throttle Control System) >> Diagnosis System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis System

  1. PRE-CHECK 
    1. Check that the cruise control actuator assembly, acceleration wire, accelerator auto drive cable assembly, and link assembly are installed correctly and that the wire and link are securely connected.
    2. Check that the operating movement of the acceleration pedal, cruise control actuator assembly, acceleration wire, accelerator auto drive cable assembly and link is smooth.
    3. Adjust the acceleration auto drive cable assembly and link system not to allow any play or excessive tension.
    4. Check that the cruise control ECU assembly, cruise control actuator assembly, cruise control main switch assembly and connectors of each cancel switch are connected securely.
    5. When turning on the main switch of the cruise control main switch assembly by pressing the button with the ignition switch to ON, check that the CRUISE main indicator light in the accessory meter assembly lights up.
  2. DIAGNOSIS SYSTEM 
    1. Check the indicator.
      1. Turn the ignition switch to ON.
      2. Check that the CRUISE main indicator light comes on when the cruise control main switch button is turned ON, and that the indicator light goes off when the main switch button is turned OFF.

        HINT:

        If the indicator check result is not normal, proceed to troubleshooting (See PROBLEM SYMPTOMS TABLE ) in combination meter .

        Fig 1: Identifying Cruise Main Indicator Light
        G04466363Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the DTC using diagnosis check wire.
      1. Turn the ignition switch to ON.
      2. Using SST, connect terminals Tc and CG of DLC3.

        SST 09843-18040 

        Fig 2: Connecting Terminals Tc And CG
        G04466364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Read the DTC on the CRUISE main indicator light.

        HINT:

        If the DTC is not output, inspect the DIAGNOSIS CIRCUIT  .

        As an example, the blinking patterns for codes are shown in Fig 3 ; normal, 11 and 21.

      Fig 3: Example Blinking Patterns Of Normal Codes And Malfunction Codes 11 & 21
      G04466365Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. DTC CLEARANCE (ERASE MODE) 

    HINT:

    During in the erase mode, diag detection does not work.

    1. Drive at about 15 km/h or below.
    2. Using SST, connect terminals TC and CG of DLC3.*1

      SST 09843-18040 

      Fig 4: Connecting Terminals TC And CG Of DLC3
      G04466366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Pull the cruise control main switch assembly to CANCEL.*2
    4. On the above mentioned condition, press on the cruise control main switch button 5 times within 3 seconds.*3
  4. PROBLEM SYMPTOM CONFIRMATION (ROAD TEST) 
    1. Inspect the SET switch.
      1. Press the cruise control main switch button to ON.*4
      2. Drive at a desired speed (40 km/h (25 mph) or higher).
      3. Push down the cruise control main switch assembly to the SET/COAST.*5
      4. After releasing the switch, check that the vehicle cruises at the desired speed.
        Fig 5: Inspecting SET Switch
        G04466367Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect the ACCEL switch.
      1. Press the cruise control main switch button to ON.*6
      2. Drive at a desired speed (40 km/h (25 mph) or higher).
      3. Check that the vehicle speed is increases while the cruise control main switch assembly is pull up to RES/ACC, and that the vehicle cruises at the set speed when the switch is released.*7
      4. Momentarily press the cruise control main switch assembly upward, to the RES/ACC and then immediately release it. Check that the vehicle speed increases by about 1.5 km/h (Tap-up function).
      Fig 6: Inspecting ACCEL Switch
      G04466368Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Inspect the COAST switch.
      1. Press the cruise control main switch button to ON.*8
      2. Drive at a desired speed (40 km/h (25 mph) or higher).
      3. Check that the vehicle speed is decreases while the cruise control main switch assembly is push down to SET/COAST, and the vehicle cruises at the set speed when the switch is released.*9
      4. Momentarily push the cruise control main switch assembly downward to SET/COAST, and then immediately release it. Check that the vehicle speed decreases by about 1.5 km/h (Tap-down function).
        Fig 7: Inspecting COAST Switch
        G04466369Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Inspect the CANCEL switch.
      1. Press the cruise control main switch button to ON.*10
      2. Drive at a desired speed (40 km/h (25 mph) or higher).
      3. When operating one of the followings, check that the cruise control system is cancelled and that the normal driving mode is reset.
        • Depress the brake pedal.
        • Depress the clutch pedal (M/T).
        • Shift to except D position (A/T).
        • Press the cruise control main switch button to OFF.
        • Pull the cruise control main switch assembly to CANCEL.
        Fig 8: Inspecting CANCEL Switch
        G04466370Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Inspect the RESUME switch.
      1. Press the cruise control main switch button to ON.*11
      2. Drive at a desired speed (40 km/h (25 mph) or higher).
      3. When operating one of the followings, check that the cruise control system is cancelled and that the normal driving mode is reset.*12
        • Depress the brake pedal.
        • Depress the clutch pedal (M/T).
        • Shift to except D position (A/T).
        • Pull the cruise control main switch assembly to CANCEL.
      4. After the cruise control main switch assembly is pull up to RES/ACC at the driving speed of more than 40 km/h (25 mph), check that the vehicle restores the speed before the cancellation.
      Fig 9: Inspecting RESUME Switch
      G04466371Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INPUT SIGNAL CHECK 

    HINT:

    • For check No. 1 to No. 3 Turn the ignition switch to ON.
    • For check No. 4
      • Jack up the vehicle.
      • Start the engine.
      • Release the clutch pedal (M/T).
      • Shift to D position (A/T).
    1. Keep the cruise control main switch assembly to SET/COAST or RES/ACC position and hold it down or hold it up.*13
      Fig 10: Keeping Cruise Control main Switch Assembly To SET/COAST Or RES/ACC Position
      G04466372Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Press the cruise control main switch button to ON.*14
    3. Check that the CRUISE main indicator light blinks twice or 3 times repeatedly after 3 seconds.
    4. Turn the SET/COAST or RES/ACC switch to OFF.*16
    5. Operate each switch as listed in DIAGNOSTIC TROUBLE CODE CHART  .
    6. Read the blinking pattern of the CRUISE main indicator light.
    7. After performing the check, turn the cruise control main switch button to OFF.*17

      HINT:

      When 2 or more signals are input to the cruise control ECU assembly, the lowest numbered code will be displayed first.

  6. AUTO CANCEL FUNCTION 
    1. If a malfunction occurs in the No. 1 vehicle speed sensors or actuator, etc. during cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and turns ON and OFF the CRUISE main indicator light to inform the driver of a malfunction. At the same time, the malfunction is stored in memory as a diagnostic trouble code.
      Fig 11: Identifying Auto Cancel Function Indicator Light Blinking Pattern
      G04466373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals