Distance Control Switch Circuit: Wiring Diagram

1. Remove the steering pad switch assembly.
   Fig 2: Identifying Distance Control Switch

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2. Measure the resistance between terminal 4 (DIST) and (ECC) of steering pad switch assembly connector when distance control switch is operated.

   Standard resistance 

   SWITCH POSITION - SPECIFIED VALUE
   
   

   Switch position	Specified value
   Distance control switch is ON	Below 1 Ω
   Distance control switch is OFF	10 kΩ or higher

   HINT:

   When a malfunction is detected in the distance control switch, replace the steering pad switch assembly.

NG : REPLACE STEERING PAD SWITCH ASSEMBLY 

OK : GO TO NEXT STEP 

1. Disconnect the spiral cable connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   A-4 - C13-11	Always	Below 1 Ω
   A-6 - C13-2	Always	Below 1 Ω

NG : REPLACE SPIRAL CABLE 

Fig 3: Inspecting Spiral Cable

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OK : GO TO NEXT STEP 

1. Disconnect the distance control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   C13-11 - D2-16 (MODE)	Always	Below 1 Ω
   D2-16 (MODE) - Body ground	Always	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 4: Identifying Terminals Of Distance Control ECU Connector

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OK : GO TO NEXT STEP 

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

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   C13-2 - Body ground	Always	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 5: Identifying Terminals Of Connector C13

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OK : GO TO NEXT STEP 

1. Remove the distance control ECU (cruise control ECU) with the connector.
2. Turn the ignition switch on.
3. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   D2-16 (MODE) - Body ground	Distance control switch ON	0 to 2 V
   D2-16 (MODE) - Body ground	Distance control switch OFF	9 to 16 V

NG : REPLACE DISTANCE CONTROL ECU 

Fig 6: Identifying Connector D2 Of Distance Control ECU

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OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE