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Home >> Hyundai >> 2000 >> Accent L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0326: Knock Sensor (KS) Range >> Test Procedures

Test Procedures

  1. Turn ignition on. Connect scan tool to data link connector and verify DTC P0326 is set. Verify fuel is at least 87 octane. If fuel is not at least 87 octane, refuel vehicle with higher octane fuel. Ensure knock sensor is tightened to 12-18 ft. lbs. (16-24 N.m). When repairs are completed, clear DTC and verify operation. If DTC P0326 resets, go to next step.
  2. Turn ignition off. Disconnect knock sensor connector. Measure resistance between knock sensor terminals No. 1 and 2. If knock sensor resistance is about 5 megohms at 68°F (20°C), go to next step. If resistance is not about 5 megohms at 68°F (20°C), replace knock sensor. Tighten knock sensor to 12-18 ft. lbs. (16-24 N.m). When repairs are completed, clear DTC and verify operation.
  3. Turn ignition off. Disconnect knock sensor and ECM connectors. Using jumper wires, connect knock sensor harness connector terminals No. 1 and No. 2 to ground. Measure resistance between ground and ECM connector terminals No. 19 (Pink wire) and No. 20 (Pink/White wire). If resistance is one ohm or less, go to next step. If resistance is more than one ohm, repair open in suspect wire between knock sensor and ECM. When repairs are completed, clear DTC and verify operation.
  4. Turn ignition off. Disconnect knock sensor and ECM connectors. Check for continuity between ground and knock sensor harness connector terminal No. 2 (Pink/White wire). If continuity does not exist, ensure ECM connector terminals are clean and tight. If connector is okay, replace knock sensor with a known-good component, clear DTC and verify operation. If problem persists, replace ECM. If continuity exists, repair short to ground in circuit between knock sensor and ECM connector terminal No. 20. When repairs are completed, clear DTC and verify operation.
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