SPEED LIMITER SYSTEM Speed Limiter System does not Operate

DTC Code DTC Name
Speed Limiter System does not Operate

DESCRIPTION

When the speed limiter main switch is turned on, the ECM illuminates the speed limiter indicator light and activates the speed limiter system. Each control of the speed limiter system can be activated by operating the cruise control switch. When the cruise control system is operating, the speed limiter system will not activate.

WIRING DIAGRAM

E314929E05
E314930E03

PROCEDURE

  1. CHECK CRUISE CONTROL SYSTEM

    1. Turn the ignition switch to ON.

    2. Turn the cruise control switch on.

    3. Check the operation of each function by operating the cruise control switch (Click here).

      OK

      Each function of the cruise control system operates normally.

    GO TO CRUISE CONTROL SYSTEM

    (Click here)

  2. READ VALUE USING INTELLIGENT TESTER (SPEED LIMITER MAIN SWITCH)

    1. Use the Data List to check if the speed limiter main switch is functioning properly.

      Table 1. Cruise Control

      Tester Display

      Measurement Item/Range

      Normal Condition

      Diagnostic Note

      ASL Main Switch

      Speed limiter main switch signal / ON or OFF

      ON: Speed limiter main switch on

      OFF: Speed limiter main switch off

      -

      OK

      On screen, item changes between ON and OFF according to above chart.

    INSPECT SPIRAL CABLE SUB-ASSEMBLYClick here

  3. CHECK FOR DTC (CRUISE CONTROL SYSTEM)

    1. Check for DTCs (Click here).

      OK

      DTCs P0500 and P0503 are not output.

      Table 2. Result

      Result

      Proceed to

      OK (for 1ZR-FAE)

      A

      OK (for 2ZR-FAE)

      B

      OK (for 1WW)

      C

      NG

      D

    REPLACE ECM

    (Click here)

    REPLACE ECM

    (Click here)

    REPLACE ECM

    (Click here)

    GO TO CRUISE CONTROL SYSTEM

    (Click here)

  4. INSPECT SPIRAL CABLE SUB-ASSEMBLY

    1. Remove the spiral cable sub-assembly (Click here).

    2. Inspect the spiral cable sub-assembly (Click here)

    REPLACE SPIRAL CABLE SUB-ASSEMBLY

    (Click here)

  5. INSPECT STEERING PAD SWITCH ASSEMBLY

    1. Remove the steering pad switch assembly (Click here).

    2. Inspect the steering pad switch assembly (Click here).

    REPLACE STEERING PAD SWITCH ASSEMBLY

    (Click here)

  6. CHECK ENGINE TYPE

    1. Check engine type.

      Table 3. Result

      Result

      Proceed to

      for 1ZR-FAE, 2ZR-FAE

      A

      for 1WW

      B

    CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)Click here

  7. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)

    1. Disconnect the H130 spiral cable sub-assembly connector.

    2. Disconnect the A76 ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H130-4 (ASL) - A76-20 (ASLM)

      Always

      Below 1 Ω

      H130-2 (ECC) - Body ground

      H130-4 (ASL) - Body ground

      Always

      10 kΩ or higher
      Table 4. Result

      Result

      Proceed to

      OK (for 1ZR-FAE)

      A

      OK (for 2ZR-FAE)

      B

      NG

      C

    REPLACE ECM

    (Click here)

    REPLACE ECM

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)

    1. Disconnect the H130 spiral cable sub-assembly connector.

    2. Disconnect the A76 ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H130-4 (ASL) - A76-49 (ASLM)

      Always

      Below 1 Ω

      H130-2 (ECC) - A76-42 (ECCS)

      H130-4 (ASL) - Body ground

      Always

      10 kΩ or higher

    REPLACE ECM

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR