Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Volvo >> 1993 >> 940 Base, 4D Sedan, AW70L >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Engine Controls - Tests W/Codes) >> Fault Code Testing >> Code 2-4-3 (Throttle Switch Signal Absent Or Faulty)

Code 2-4-3 (Throttle Switch Signal Absent Or Faulty)

WARNING: This page is about a different car, the 1994 Volvo 960. However, it is still accessible from the selected car via links, so may be relevant.
  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 measuring unit 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 measuring unit terminals No. 12 and 30. Voltmeter should indicate 5 volts. Turn ignition off. Ensure measuring unit terminal No. 30 is grounded. Connect an ohmmeter between measuring unit terminals No. 19 and 30. Ohmmeter should indicate zero ohms.
scientia non olet · About Mike's Workshop Manuals