Toyota RAV4 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:
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove front fender liner lh
Remove front fender liner lh
Remove the ...
Front speed sensor
Components
Removal
Hint:
Use the same procedures for the lh side and rh side.
The procedures listed below are for the lh side.
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery termin ...
Rear occupant classification sensor rh collision detection
Description
Dtc b1788 is output when the occupant classification ecu receives a collision
detection signal sent by
the rear occupant classification sensor rh when an accident occurs.
Dtc b1788 is also output when the front seat rh is subjected to a strong impact,
even if an actual
acci ...