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Home >> Audi >> 1994 >> S4 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Engine Sensors & Switches >> Closed Throttle Position Switch >> Checking ECM -To-Throttle Position Sensor Wiring.

Checking ECM -To-Throttle Position Sensor Wiring.

  1. Connect (VAG 1598) test box to Engine Control Module (ECM) wiring harness using (VAG 1598/5) adapter cable. See CONNECTING VAG 1598 TEST BOX .
    2. NOTE: ECM remains disconnected.
  2. Disconnect TP sensor harness connector. Check following circuits for continuity or shorts, by testing at terminals indicated, see CHECKING ECM -TO-THROTTLE POSITION (TP) SENSOR WIRING  table. See Figure. Resistance must be 1.0 ohm maximum. See WIRING DIAGRAMS .
    3. NOTE: Use only gold replacement terminals when making repairs to TP sensor harness connectors.
  3. Repair open or short circuits as necessary.
IDENTIFYING THROTTLE POSITION SENSOR HARNESS CONNECTOR TERMINAL & (VAG 1598) SOCKET NUMBER

TPS Harness Connector Terminal Number VAG 1598 Socket Number
4 9
6 52
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