LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saab >> 1990 >> 9000 CD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Ignition Checks >> EZK Ignition System >> Hall Effect Sensor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Hall Effect Sensor

NOTE: Make all checks at the back of electrical connectors for EZK electronic control unit (ECU) with ignition on.
  1. To test sensor supply voltage, connect voltmeter between terminal No. 10 and 4 of ECU. See WIRING DIAGRAMS article. Voltmeter reading should be battery voltage.
  2. To test signal from Hall Effect sensor to ECU, connect voltmeter between terminal No. 10 and 24 of ECU. See WIRING DIAGRAMS article. Slowly turn engine by hand. Voltmeter reading should vary from 0.4-3.0 volts as Hall Effect sensor shutter opens and closes.
scientia non olet · About LEMON Manuals