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:
How to proceed with troubleshooting
Hint:
Use the procedure to troubleshoot the power door lock
control system.
*: Use the intelligent tester.
Vehicle brought to workshop
Inspect battery voltage
Standard voltage:
11 to 14 v
If the voltage is below 11 v, recharge or replace the battery
before proceeding.
...
Check for open circuit
For an open circuit in the wire harness in fig. 1,
Check the resistance or voltage, as described below.
Check the resistance.
Disconnect connectors a and c, and measure
the resistance between them.
Standard resistance (fig. 2)
Hint:
Measure the resistance while lightly s ...
Indicators
The indicators inform the driver
of the operating state of the
vehicle's various systems.
Turn signal indicator
Headlight indicator
Tail light indicator
Headlight high beam indicator
Automatic High Beam
indicator
Fog light indicator (if
equipped)
Smart key system indicator*
1
Cruise control ...
