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
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Test yourself
A quick Toyota RAV4 quiz: every answer comes with an explanation and a link to the manual page.