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DTC P0332/16716 - Knock Sensor 2 Circuit Low Input (Bank 2)

NOTE: DTC is set if Knock Sensor No. 2 (KS2) test signal is too low or not recognized by Electronic Control Module (ECM).
  1. Inspect KS2 connector for looseness and/or corrosion. Repair sensor connector as necessary. Erase DTC memory and test drive vehicle. See CLEARING DTCS in this article. Recheck DTC memory and verify DTC does not reset. If DTC resets, go to next step. If sensor connector is okay, go to next step.
  2. Inspect KS2 for loose mounting to engine. Using Insert (3247), torque KS2 to 15 ft. lbs. (20 N.m) if necessary. Erase DTC memory and test drive vehicle. See CLEARING DTCS in this article. Recheck DTC memory and verify DTC does not reset. If DTC resets, go to next step. If KS2 mounting is okay, go to next step.
  3. Turn ignition off. Disconnect KS2 connector. Disconnect ECM connector. Connect Test Box (VAG 1598/18) to ECM wiring harness. Terminal assignments of test box are identical to ECM connector's.
  4. Using DVOM, check resistance between KS2 connector terminal No. 1 and test box socket No. 56, and KS2 connector terminal No. 2 and test box socket No. 56. Resistance should be infinite (no continuity). If resistance is as specified, go to next step. If resistance is not as specified, locate and repair short circuit between KS2 connector and ECM. Erase DTC memory and test drive vehicle. See CLEARING DTCS in this article. Recheck DTC memory and verify DTC does not reset. If DTC resets, go to next step.
  5. Using DVOM, check resistance between KS2 connector terminal No. 1 and test box socket No. 57, KS2 connector terminal No. 2 and test box socket No. 33, and KS2 connector terminal No. 3 and test box socket No. 56. Resistance should be less than 1.5 ohms. If resistance is as specified, go to next step. If resistance is not as specified, locate and repair open circuit between KS2 connector and ECM. Erase DTC memory and test drive vehicle. See CLEARING DTCS in this article. Recheck DTC memory and verify DTC does not reset. If DTC resets, go to next step.
  6. Replace KS2. Erase DTC memory and test drive vehicle. See CLEARING DTCS  in this article. Test drive vehicle. Recheck DTC memory and verify DTC does not reset. If DTC resets, go to next step.
  7. Replace faulty ECM. Test drive vehicle. Recheck DTC memory and verify DTC does not reset. If DTC resets, repeat testing procedure.
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