CRUISE CONTROL SYSTEM Cruise Control Switch Circuit

DESCRIPTION

This circuit sends signals to the ECM depending on the cruise control main switch condition. The battery supplies positive (+) battery voltage to the cruise control main switch. Then terminal CCS of the ECM receives the voltage according to the switch condition.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK VEHICLE CONTROL SYSTEM

   
   

   1. Check vehicle system.

      Result

      Result	Proceed to
      w/ Multi-display	A
      w/o Multi-display	B

   
   

   B

   READ VALUE USING INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH) Click here

   A

2. READ VALUE USING INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH)

   
   

   1. 

      Using the intelligent tester, read the Data List.

      Cruise Control

      Tester Display	Measurement Item / Range	Normal Condition	Diagnostic Note
      CCS Main SW M-CPU	Cruise control main switch signal (Main CPU) / ON or OFF	ON: Cruise control main switch (Main CPU) on OFF: Cruise control main switch (Main CPU) off	-
      Cancel Switch	CANCEL switch signal / ON or OFF	ON: CANCEL switch on OFF: CANCEL switch off	-
      SET/COAST Switch	-SET switch signal / ON or OFF	ON: -SET switch on OFF: -SET switch off	-
      RES/ACC Switch	+RES switch signal / ON or OFF	ON: +RES switch on OFF: +RES switch off	-

      OK
      The intelligent tester display changes according to operation of cruise control main switch.

   
   

   NG

   INSPECT CRUISE CONTROL MAIN SWITCH ASSEMBLY Click here

   OK

   PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

3. INSPECT CRUISE CONTROL MAIN SWITCH ASSEMBLY

   

   
   

   1. Remove the cruise control main switch.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 1 - 3 Neutral 10 kΩ or higher Pushed to +RES 235 to 245 Ω Pushed to -SET 617 to 643 Ω Pushed to CANCEL 1509 to 1571 Ω Main switch pushed off 10 kΩ or higher Main switch pushed on Below 1 Ω

   
   

   NG

   REPLACE CRUISE CONTROL MAIN SWITCH ASSEMBLY

   OK

4. INSPECT CRUISE CONTROL SWITCH WIRE

   

   
   

   1. Remove the cruise control switch wire.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A-3 - B-3 Always Below 1 Ω A-4 - B-1

   
   

   NG

   REPLACE CRUISE CONTROL SWITCH WIRE

   OK

5. INSPECT SPIRAL CABLE SUB-ASSEMBLY

   

   
   

   1. Remove the spiral cable.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A-3 - 1 (CCS) Always Below 1 Ω A-4 - 2 (ECC) Always Below 1 Ω

   
   

   NG

   REPLACE SPIRAL CABLE SUB-ASSEMBLY

   OK

6. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM AND BODY GROUND)

   

   
   

   1. Disconnect the S13 spiral cable connector.

   2. Disconnect the E13 ECM connector.

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

      Standard Resistance
      for 1GR-FE
      Tester Connection Condition Specified Condition S13-1 (CCS) - E13-2 (CCS) Always Below 1 Ω S13-2 (ECC) - Body ground Always Below 1 Ω S13-1 (CCS) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

7. READ VALUE USING INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH)

   
   

   1. 

      Using the intelligent tester, read the Data List.

      Cruise Control

      Tester Display	Measurement Item / Range	Normal Condition	Diagnostic Note
      CCS Main SW M-CPU	Cruise control main switch signal (Main CPU) / ON or OFF	ON: Cruise control main switch (Main CPU) on OFF: Cruise control main switch (Main CPU) off	-
      Cancel Switch	CANCEL switch signal / ON or OFF	ON: CANCEL switch on OFF: CANCEL switch off	-
      SET/COAST Switch	SET / COAST switch signal / ON or OFF	ON: SET / COAST switch on OFF: SET / COAST switch off	-
      RES/ACC Switch	RES / ACC switch signal / ON or OFF	ON: RES / ACC switch on OFF: RES / ACC switch off	-

      OK
      The intelligent tester display changes according to operation of cruise control main switch.

   
   

   NG

   INSPECT CRUISE CONTROL MAIN SWITCH ASSEMBLY Click here

   OK

   PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

8. INSPECT CRUISE CONTROL MAIN SWITCH ASSEMBLY

   

   
   

   1. Remove the cruise control main switch.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 3 - 4 Neutral 10 kΩ or higher Pushed to RES / ACC 235 to 245 Ω Pushed to SET / COAST 617 to 643 Ω Pushed to CANCEL 1509 to 1571 Ω Main switch pushed off 10 kΩ or higher Main switch pushed on Below 1 Ω

   
   

   NG

   REPLACE CRUISE CONTROL MAIN SWITCH ASSEMBLY

   OK

9. INSPECT SPIRAL CABLE SUB-ASSEMBLY

   

   
   

   1. Remove the spiral cable.

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

      Standard Resistance
      Tester Connection Condition Specified Condition 3 - 1 (CCS) Always Below 1 Ω 4 - 2 (ECC) Always Below 1 Ω

   
   

   NG

   REPLACE SPIRAL CABLE SUB-ASSEMBLY

   OK

10. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM AND BODY GROUND)

    

    
    

    1. Disconnect the S13 spiral cable connector.

    2. Disconnect the E13 ECM connector.

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

       Standard Resistance
       for 1GR-FE
       Tester Connection Condition Specified Condition S13-1 (CCS) - E13-2 (CCS) Always Below 1 Ω S13-2 (ECC) - Body ground Always Below 1 Ω S13-1 (CCS) - Body ground Always 10 kΩ or higher

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE