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Home >> Suzuki >> 1999 >> Vitara JS, 4D Utility, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> System Tests >> Cruise Main Switch, Coast/Set, Resume/ACCEL & Cancel Switch Circuit Check
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Cruise Main Switch, Coast/Set, Resume/ACCEL & Cancel Switch Circuit Check

  1. Turn ignition off. Disconnect Cruise Control Electronic Control Unit (CC ECU) harness connector. Check resistance between CC ECU harness connector terminals No. 8 (Light Green/Red wire on Esteem; Light Green wire on Grand Vitara and Vitara) and No. 5 (Blue wire on Esteem; Black/Yellow wire on Grand Vitara and Vitara). See Figure .
  2. With all switches off, resistance should be infinite. With COAST/SET switch on, resistance should be 200-240 ohms. With RESUME/ACCEL switch on, resistance should be 820-1000 ohms. With CANCEL switch on, resistance should be about zero ohms. If resistance is as specified, go to next step. If resistance is not as specified, go to step  4 .
  3. Turn ignition on. Using DVOM, measure voltage between CC ECU harness connector terminal No. 8 (Light Green/Red wire on Esteem; Light Green wire on Grand Vitara and Vitara) and ground. With cruise control main switch off, voltage should be about zero. With cruise control main switch on, voltage should be 10-14 volts. If voltage is as specified, switch circuit is okay. If voltage is not as specified, go to next step.
  4. Check cruise control main switch. See CRUISE CONTROL MAIN SWITCH  under COMPONENT TESTS. Replace as necessary. If cruise control main switch tests okay, go to next step.
  5. Check COAST/SET, RESUME/ACCEL and CANCEL switch operation. See COAST/SET RESUME/ACCEL & CANCEL SWITCH ASSEMBLY  under COMPONENT TESTS. Replace as necessary. If switch is okay, check for open or short between multifunction switch and CC ECU in Black/Yellow and Light Green wires (Esteem) or Blue and Light Green/Red wires (Grand Vitara and Vitara). See WIRING DIAGRAMS  . Repair as necessary.
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