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Home >> Volvo >> 1995 >> 940 Base, 4D Sedan, AW71 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> System Tests >> Component Test Mode >> Brake Valve Check (Response Code 1-1-3)

Brake Valve Check (Response Code 1-1-3)

  1. Turn ignition off. Slide cruise control selector switch to OFF position. Disconnect brake valve electrical connector. Using an ohmmeter, measure resistance between brake valve electrical terminals.
  2. With pedal up, zero ohms should be present. Switch should not close until pedal has traveled more than .30" (8.0 mm). After switch closes, ohmmeter should indicate infinite resistance. If switch operates okay, go to next step. If switch is not okay, replace switch.
  3. Turn ignition on. Slide cruise control selector switch to ON position. Using a voltmeter, measure voltage between control unit terminal No. 3 and ground. See Figure . With pedal up, battery voltage should be present. With pedal depressed or cruise control selector switch in OFF position, no voltage should be present.
  4. If voltages are not as indicated, check wiring and connectors for open or short circuit. If voltages are as indicated, go to SELECTOR CHECK. If selector checks okay, repeat SYSTEM COMPONENT CHECK. If no response code is generated during SYSTEM COMPONENT CHECK, go to CONTROL UNIT CHECK.
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