Test C: DEACTIVATOR Switch Circuit (Flash Code 3)
NOTE:
After completing any repairs, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEM .
NOTE:
Perform all voltage and resistance tests using an Digital Volt-Ohm Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.
- Turn ignition switch to LOCK position. Disconnect speed control servo/actuator 10-pin harness connector C122, located on left side of engine compartment. See Figure. Measure voltage between speed control servo/actuator harness connector C122 terminals No. 9 (Tan/Orange wire) and No. 10 (Black wire). See Figure. See WIRING DIAGRAMS . If voltage is less than 10 volts, go to next step. If voltage is greater than 10 volts, replace speed control servo/actuator. See SPEED CONTROL SERVO/ACTUATOR under REMOVAL & INSTALLATION. After repair, test system for normal operation.
- Disconnect deactivator switch 2-pin harness connector C277, located under dash panel, on brake pedal support. See Figure. Measure voltage between ground and deactivator switch harness connector C277 terminal No. 2 (Light Green/Red wire). See Fig 1. See WIRING DIAGRAMS . If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair open circuit in Light Green/Red wire between deactivator switch and Central Junction Box (CJB) located behind left side of instrument panel. See Figure. For CRUISE CONTROL circuit identification. After repair, test system for normal operation.
- Ensure ignition switch is on LOCK position. Measure resistance between speed control servo/actuator harness connector C122 terminal No. 9 and deactivator switch connector C277 terminal No. 1 (Tan/Orange wire). See Figure and Fig 1 . See WIRING DIAGRAMS . If resistance is 5 ohms or less, replace deactivator switch. See DEACTIVATOR SWITCH under REMOVAL & INSTALLATION. If resistance is greater than 5 ohms, repair open circuit in Tan/Orange wire between speed control servo/actuator and deactivator switch. After repair, test system for normal operation.