Distance Control Switch Circuit

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: Distance Control Switch Circuit

Distance Control Switch Circuit

DESCRIPTION

The distance control switch sets the vehicle-to-vehicle distance mode. The distance control switch is installed in the steering pad switch. The vehicle-to-vehicle distance set value can be changed by operating the steering pad switch (distance control switch) while the dynamic radar cruise control system is in operation. The steering pad switch uses the BEAN to communicate with each ECU. Therefore it does not have a direct connection with the hybrid vehicle control ECU. If there are any malfunction in the communication line of the steering pad switch, one or more DTCs in the multiplex communication system are output.

WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE:
When the distance control ECU is replaced with a new one, initialization must be performed Installation.

PROCEDURE

1. INSPECT STEERING PAD SWITCH ASSEMBLY




(a) Remove the steering pad switch assembly.
(b) Measure the resistance of the switch cable connector.
Standard resistance:






NG -- REPLACE STEERING PAD SWITCH ASSEMBLY
OK -- Continue to next step.
2.
INSPECT SPIRAL CABLE SUB-ASSEMBLY




(a) Disconnect the spiral cable connectors.
(b) Measure the resistance of the spiral cable connectors.
Standard resistance:






NG -- REPLACE SPIRAL CABLE SUB-ASSEMBLY
OK -- Continue to next step.
3.
CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - SPIRAL CABLE AND BODY GROUND)




(a) Disconnect the K13 ECU connector.
(b) Disconnect the K20 spiral cable connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4.
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - BODY GROUND)




(a) Disconnect the K20 spiral cable connector.
(b) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5.
CHECK DISTANCE CONTROL ECU




(a) Remove the distance control ECU with the connector.
(b) Turn the power switch ON (IG).
(c) Measure the voltage of the connector.
Standard voltage:






NG -- REPLACE DISTANCE CONTROL ECU
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE