Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Plymouth >> 1988 >> Horizon Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2.2L/2.5L TBI Tests W/Codes >> Diagnostic Trouble Code (DTC) Identification >> Dr6, Code 23 - Throttle Body Temperature Sensor

Dr6, Code 23 - Throttle Body Temperature Sensor

  1. With DRB II connected to diagnostic connector, disconnect throttle body temperature sensor connector. Put system in Sensor Test "03". If display on tester reads 5 volts, go to next step. If display on tester reads zero volts, or zero volts and then increases, replace SMEC. Before replacing SMEC, ensure cavity No. 21 of 60-pin connector is not shorted to ground.
    Fig 1: Jumpering Throttle Body Temperature Sensor
    G55975
  2. With DRB II connected and system in Sensor Test "03", connect a jumper wire between Black/Red and Black/Light Blue wire terminals of throttle body/charge temperature sensor harness connector. If display on tester reads zero volts, replace throttle body temperature sensor. If display on tester reads 5 volts, go to next step.
    Fig 2: Testing Throttle Body Temperature Sensor
    G55976
  3. Connect one end of a jumper wire to ground. Connect other end of wire to Black/Red wire terminal of throttle body/charge temperature sensor connector. If display reads zero volts, repair Black/Light Blue wire of throttle body/charge temperature sensor connector for an open circuit to wiring harness splice. If display on tester reads 5 volts, repair wire of throttle body temperature sensor connector for an open circuit to SMEC.
scientia non olet · About Mike's Workshop Manuals