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Home >> Lexus >> 2003 >> GX 470 >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Electronic Modulated Suspension & Rear Air Suspension System - Diagnosis >> Pre-Check >> Input Signal Check (Test Mode Check) >> DTC from input signal check

DTC from input signal check

If a malfunction code is displayed during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to the "See page" under respective "DTC No." in the chart.

DTC

DTC No. (See Page) Detection Item Trouble Area
C1782/82 (DTC C1782/82 STOP LIGHT SWITCH CIRCUIT  ) Stop light switch circuit malfunction
  • Stop lamp switch assy
  • Stop light switch circuit
  • Suspension control ECU
C1783/83 (DTC C1783/83 DOOR COURTESY SWITCH CIRCUIT  ) Door courtesy switch circuit malfunction
  • Door courtesy switch assy
  • Back door courtesy switch assy
  • Door courtesy switch circuit
  • Multiplex network body ECU
  • Suspension control ECU
C1786/86 (DTC C1786/86 HEIGHT CONTROL SWITCH CIRCUIT  ) Height control switch circuit malfunction
  • Height control switch (Suspension control switch)
  • Height control switch circuit
  • Suspension control ECU
C1787/87 (DTC C1787/87 ABSORBER CONTROL SWITCH CIRCUIT  ) Absorber control switch malfunction
  • Absorber control switch assy (Suspension control switch)
  • Absorber control switch circuit
  • Suspension control ECU
C1788/88 (DTC C1788/88 HEIGHT CONTROL OFF SWITCH CIRCUIT  ) Height control OFF switch circuit malfunction
  • Height control OFF switch (Suspension control switch)
  • Height control OFF switch circuit
  • Suspension control ECU
C1791/91 (DTC C1715/15 RIGHT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1716/16 LEFT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1717/17 REAR ACCELERATION SENSOR CIRCUIT, DTC C1791/91 RIGHT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1792/92 LEFT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1793/93 REAR ACCELERATION SENSOR CIRCUIT  ) Open or short circuit in right front acceleration sensor circuit
  • Acceleration sensor assy front RH
  • Right front acceleration sensor circuit
  • Suspension control ECU
C1792/92 (DTC C1715/15 RIGHT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1716/16 LEFT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1717/17 REAR ACCELERATION SENSOR CIRCUIT, DTC C1791/91 RIGHT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1792/92 LEFT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1793/93 REAR ACCELERATION SENSOR CIRCUIT  ) Open or short circuit in left front acceleration sensor circuit
  • Suspension control ECU (Acceleration sensor LH is a built-in equipment)
C1793/93 (DTC C1715/15 RIGHT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1716/16 LEFT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1717/17 REAR ACCELERATION SENSOR CIRCUIT, DTC C1791/91 RIGHT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1792/92 LEFT FRONT ACCELERATION SENSOR CIRCUIT, DTC C1793/93 REAR ACCELERATION SENSOR CIRCUIT  ) Open or short circuit in rear acceleration sensor circuit
  • Acceleration sensor rear
  • Rear acceleration sensor circuit
  • Suspension control ECU
C1794/94 (DTC C1776/76 SPEED SENSOR CIRCUIT, DTC C1794/94 RIGHT FRONT SPEED SENSOR CIRCUIT, DTC C1795/95 LEFT FRONT SPEED SENSOR CIRCUIT  ) Right front speed sensor circuit malfunction
  • Right front speed sensor
  • Right front speed sensor circuit
  • Skid control ECU assy
  • Suspension control ECU
C1795/95 (DTC C1776/76 SPEED SENSOR CIRCUIT, DTC C1794/94 RIGHT FRONT SPEED SENSOR CIRCUIT, DTC C1795/95 LEFT FRONT SPEED SENSOR CIRCUIT  ) Left front speed sensor circuit malfunction
  • Left front speed sensor
  • Left front speed sensor circuit
  • Skid control ECU assy
  • Suspension control ECU
C1797/97 (DTC C1779/79 CRANKSHAFT POSITION SENSOR CIRCUIT, DTC C1797/97 CRANKSHAFT POSITION SENSOR CIRCUIT  ) Crankshaft position sensor circuit malfunction
  • Crankshaft position sensor
  • Crankshaft position sensor circuit
  • ECM
  • Suspension control ECU