Test M: Off Switch Inoperative
- Using New Generation Star (NGS) tester or Worldwide Diagnostic System (WDS) tester, monitor speed control servo/actuator PID SC_OFF. Depress and release speed control actuator switch OFF button while slightly turning steering wheel from side to side. If NGS/WDS tester does not indicate ACTIVE with OFF button depressed and NOTACT with OFF button released, go to next step. If NGS/WDS tester indicates ACTIVE with OFF button depressed and NOTACT with OFF button released, system is okay.
- Turn ignition switch to OFF position. Disconnect speed control servo/actuator 10-pin harness connector C116. Measure resistance between speed control servo/actuator harness connector C116 terminals No. 5 (Light Blue/Black wire) and No. 6 (Dark Green/Orange wire) while pressing speed control actuator switch OFF button and slightly turning steering wheel from side to side. See Figure . If resistance is less than 5 ohms with OFF button pressed and more than 10 k/ohms with OFF button released, replace speed control servo/actuator. See SPEED CONTROL SERVO/ACTUATOR under REMOVAL & INSTALLATION. Clear DTC and repeat self-test. If resistance is not less than 5 ohms with OFF button pressed, or less than 10 k/ohms with OFF button released, replace speed control actuator switch. See SPEED CONTROL ACTUATOR SWITCH under REMOVAL & INSTALLATION.