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Home >> Volvo >> 1992 >> 960 4D Sedan >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Fault Code Testing >> Code 2-4-3 (Throttle Switch Signal Absent Or Faulty)
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Code 2-4-3 (Throttle Switch Signal Absent Or Faulty)

  1. Enter test mode No. 2. See TEST MODE NO. 2 under RETRIEVING CODES  . Turn throttle slightly. Throttle function is correct in idling position if flashing code 3-3-2 is displayed.
  2. Turn throttle to full-load position and release. Throttle function is correct in full-load position if flashing code 3-3-3 is displayed.
  3. Connect Measuring Unit (999-3070 ) to ECU. See CONNECTING MEASURING UNIT TO ECU  . Turn ignition on. Connect voltmeter between terminals No. 30 and 53. Voltmeter should indicate about 0.5 volts at idle and about 4.5 volts at full load.
  4. Connect voltmeter between terminals No. 12 and 30. Voltmeter should indicate 5 volts. Turn ignition off. Ensure terminal No. 30 is grounded. Connect an ohmmeter between terminals No. 19 and 30. Ohmmeter should indicate zero ohms.
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