Toyota RAV4 (XA40) 2013-2018 Service Manual: Cruise control switch circuit
Description
This circuit sends signals to the ecm depending on the cruise control switch condition. The battery supplies positive (+) battery voltage to the cruise control switch. Then terminal ccs of the ecm receives the voltage according to the switch condition.
Wiring diagram
Inspection procedure
- Read value of intelligent tester (cruise control main switch)
- Check the data list for proper functioning of the cruise control switch.
Ok: when cruise control switch operation is performed, the results will be same as above.
- Inspect cruise control switch
- Disconnect the cruise control switch connector.
- Measure the resistance of the switch.
Standard resistance 
- Inspect spiral cable sub-assembly
- Disconnect the cruise control switch connector.
- Disconnect the e7 cable connector.
- Measure the resistance of the spiral cable.
Standard resistance
- Check wire harness (spiral cable - ecm and body ground)
- Disconnect the e7 cable connector.
- Disconnect the a9 ecm connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance 
Proceed to next circuit inspection shown in problem symptoms table
Communication
Description
The skid control ecu sends signals such as cruise control cancel demand
signals and brake operation
demand from ecm response signals to the ecm when the cruise control system is in ...
Cruise control system cruise control main switch
Components
Removal
Caution:
Be sure to read the precautionary notices concerning the
srs airbag system before servicing it (see page rs-1).
Disconnect cable from negative battery
termi ...
Other materials:
Master cylinder pressure sensor malfunction
Description
The master cylinder pressure sensor is connected to the skid control ecu in
the abs and traction
actuator.
Dtc c1281/81 can be detected when the master cylinder pressure sensor sends a
master cylinder
pressure signal or test mode ends. Dtc c1281/81 is output only in test mo ...
Seat heaters
Turns on the front left seat
heater (high)
Turns on the front left seat
heater (low)
Turns on the front right seat
heater (high)
Turns on the front right seat
heater (low)
The indicator light comes on.
The seat heaters can be used when
Vehicles without a smart key system
T ...
Coolant thermostat (coolant temperature below thermostat regulating
temperature)
Hint:
This dtc relates to the thermostat.
Description
This dtc is set when the engine coolant temperature (ect) does not reach 75°c
(167°f) despite
sufficient engine warm-up time having elapsed.
Monitor description
The ecm estimates the ect based on the starting temperature, en ...
