SPEED LIMITER SYSTEM 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

A002OJWE05
for 1ZR-FAE, 2ZR-FAE
*a Speed Limiter Main Switch
*b Steering Pad Switch
*c Spiral Cable Sub-assembly
A002O7JE03
for 1WW
*a Speed Limiter Main Switch
*b ECCS
*c Steering Pad Switch
*d Spiral Cable Sub-assembly

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.

    NG

    GO TO CRUISE CONTROL SYSTEM Click here

    OK

  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.

      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.

    NG

    INSPECT SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  3. CHECK FOR DTC (CRUISE CONTROL SYSTEM)


    1. Check for DTCs Click here.

      OK
      DTCs P0500 and P0503 are not output.
      Result
      Result Proceed to
      OK (for 1ZR-FAE) A
      OK (for 2ZR-FAE) B
      OK (for 1WW) C
      NG D

    A

    REPLACE ECM Click here

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    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


    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  5. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly Click here.

    2. Inspect the steering pad switch assembly Click here.


    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  6. CHECK ENGINE TYPE


    1. Check engine type.

      Result
      Result Proceed to
      for 1ZR-FAE, 2ZR-FAE A
      for 1WW B

    B

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

    A

  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
      Result
      Result Proceed to
      OK (for 1ZR-FAE) A
      OK (for 2ZR-FAE) B
      NG C

    A

    REPLACE ECM Click here

    B

    REPLACE ECM Click here

    C

    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

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR