CRUISE CONTROL SYSTEM(for 1WW) Cruise Control Switch Circuit

DESCRIPTION

• The cruise control main switch outputs the signals of the power source for cruise control and the signals of the various operation switches to the ECM.

• The ECM performs cruise control in accordance with the signals from the cruise control main switch.

WIRING DIAGRAM

PROCEDURE

1. READ VALUE USING GTS (CRUISE CONTROL SWITCH)

   
   

   1. Use the Data List to check if the cruise control main switch is functioning properly Click here.

      Cruise Control

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Cruise Control Switch	Cruise control switch signal / ON or OFF	ON: Cruise control switch (ON-OFF switch) pushed OFF: Cruise control switch (ON-OFF switch) released	-
      CANCEL SW	CANCEL switch signal / ON or OFF	ON: CANCEL switch on OFF: CANCEL switch off	-
      -SET SW	-SET switch signal / ON or OFF	ON: -SET switch on OFF: -SET switch off	-
      +RES SW	+RES switch signal / ON or OFF	ON: +RES switch on OFF: +RES switch off	-

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

   
   

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

   NG

2. 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

3. INSPECT CRUISE CONTROL SWITCH WIRE

   

   Text in Illustration

   *a	Front view of wire harness connector (to Spiral Cable)
   *b	Front view of wire harness connector (to Cruise Control Main Switch)

   
   

   1. Disconnect the z12 spiral cable connector.

   2. Disconnect the z11 switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition z12-3 (CCS) - z11-3 (CCS) Always Below 1 Ω z12-4 (ECC) - z11-1 (ECC) z12-3 (CCS) - Body ground Always 10 kΩ or higher z12-4 (ECC) - Body ground

   
   

   NG

   REPLACE CRUISE CONTROL SWITCH WIRE

   OK

4. INSPECT CRUISE CONTROL MAIN SWITCH

   
   

   1. Remove the cruise control main switch Click here.

   2. Inspect the cruise control main switch Click here.

   
   

   NG

   REPLACE CRUISE CONTROL MAIN SWITCH Click here

   OK

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

   
   

   1. Disconnect the H130 spiral cable 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 H130-1 (CCS) - A76-41 (CCS) Always Below 1 Ω H130-2 (ECC) - A76-42 (ECCS) H130-2 (ECC) - Body ground 10 kΩ or higher H130-1 (CCS) - Body ground

   
   

   OK

   REPLACE ECM Click here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR