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Home >> Lexus >> 2012 >> LS 600hL >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Active Stabilizer Suspension System (Diagnostic Codes (C1901 - U01108)) >> Active Stabilizer Suspension System >> DTC C194F: Operation of Static Test Mode is Incomplete (Test Mode DTC); DTC C1950: Front Stabilizer Target Angle Not Attained (Test Mode DTC); DTC C1951: Rear Stabilizer Target Angle Not Attained (Test Mode DTC) >> Description

DTC C194F: Operation of Static Test Mode is Incomplete (Test Mode DTC); DTC C1950: Front Stabilizer Target Angle Not Attained (Test Mode DTC); DTC C1951: Rear Stabilizer Target Angle Not Attained (Test Mode DTC): Description

If the Active Test does not operate, test mode DTCs C194F and C1950 are output for the front, and C194F and C1951 are output for the rear. If system malfunction DTCs are already stored, test mode DTCs are not stored. During the Active Test, if the power switch is turned OFF or an actuator is malfunctioning, test mode DTCs are stored due to incompletion of operation. If this occurs, turn the power switch OFF (unless already turned OFF) and turn the power switch ON (READY). Then perform the Active Test to complete the operation normally, and the test mode DTC will be erased.

DTC Code Detection Condition Trouble Area
C194F Active Test incomplete Perform Active Test again
C1950 During Active Test, front malfunction occurs
  • Perform Active Test again
  • Front active stabilizer control actuator
  • Front active stabilizer control ECU
C1951 During Active Test, rear malfunction occurs
  • Perform Active Test again
  • Rear active stabilizer control actuator
  • Rear active stabilizer control ECU