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Ensure all fuses are okay, battery voltage is at least 11.5 volts and fuel pump relay is okay. Ensure all electrical Test Procedure 1. Turn ignition off. Disconnect ECM harness connector, leave ECM disconnected from test box. Connect Test Box (VAG 1598/31) to ECM harness connector. See CONNECTING VAG TEST BOX . Using z Upstream HO2S connector terminal No. 1 and test box socket No. 70. z Upstream HO2S connector terminal No. 2 and test box socket No. 71. z Upstream HO2S connector terminal No. 5 and test box socket No. 51. z Upstream HO2S connector terminal No. 6 and test box socket No. 52. 2. Resistance should be a maximum of 1.5 ohms for each reading. Check wiring in upstream HO2S 6-pin harness connector for short circuits to one another. If resistance measurements are okay and no short 3. After repairs, erase DTC memory. Verify repair. Test is complete. Perform ECM relearn procedure. See TEST DRIVE RELEARN PROCEDURE . If any resistance measurement is not okay, or a short circuit DTC P1181/17589, P1182/17590 & P1183/17591: HO2S UPSTREAM TWC - REFERENCE VOLTAGE Code Definition DTC P1181/17589 DTC P1182/17590 DTC P1183/17591 Test Requirements Ensure all fuses are okay, battery voltage is at least 11.5 volts and fuel pump relay is okay. Ensure all electrical Test Procedure
2003 Volkswagen New Beetle GLS 2001-2003 ENGINE PERFORMANCE Self-Diagnostics - 2.0L - Beetle, Golf & Jetta (Engine Codes AVH & AZG)
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