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1. Check wiring between ABS control module and ECM for open or short. See appropriate WIRING DIAGRAM under ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS. If wiring is okay, go 2. Check ABS system. See appropriate ABS article. DTC P0321/16705 & DTC P0322/16706 Code Definition z DTC P0321/16705: Engine Speed Sensor (RPM - G28), Implausible Signal z DTC P0322/16706: Engine Speed Sensor (RPM - G28), No Signal Test Requirement Ensure all fuses are okay, battery voltage is at least 11.5 volts and fuel pump relay is okay. Ensure all electrical Test Procedure - Beetle, GTI & Jetta 1. Disconnect grey 3-pin harness connector from Engine Speed Sensor (G28). For all engine codes except AWW and AWP. See COMPONENT LOCATIONS . For engine codes AWW and AWP, see Fig. 42 . 2. 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 DVOM, check z Engine Speed sensor 3-pin harness connector terminal No. 1 and test box socket No. 108. z Engine Speed sensor 3-pin harness connector terminal No. 2 and test box socket No. 90. z Engine Speed sensor 3-pin harness connector terminal No. 3 and test box socket No. 82. NOTE: If a test ends with ECM replacement. Before replacing ECM be certain that, all NOTE: Engine Speed (RPM) Sensor (G28) is a speed and reference sensor. If Engine
2003 Volkswagen New Beetle GLS 2002-2003 ENGINE PERFORMANCE Self-Diagnostics - 1.8L Turbo
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