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Wastegate Solenoid

  1. Remove connector from multi-thermo switch and turn ignition on. Energize wastegate solenoid by momentarily touching wastegate solenoid lead to multi-thermo switch. Solenoid will click if operating properly.
  2. Remove harness connector from wastegate solenoid. Check voltage at connector terminal No. 1 (Green/Purple or Green/Yellow wire). Voltage should read approximately 12 volts. If voltage is not as specified, check circuits and fuel pump relay.
  3. If voltage is as specified, turn ignition off and remove Electronic Control Unit (ECU) harness connector. Using an ohmmeter, measure resistance in wire between solenoid connector terminal No. 2 (Blue/Black wire) and ECU terminal No. 19. See Figure for ECU terminal identifications. Resistance should be zero ohm. If not, check for open circuit in wiring or connectors. If circuits are okay, replace wastegate solenoid.
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