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Home >> Lexus >> 2010 >> GS 350 RWD >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Active Stabilizer Suspension (Diagnostic Codes & Symptom Tests) >> Active Stabilizer Suspension System >> DTC C1940: Front Yaw Rate Sensor; DTC C1941: Front Acceleration Sensor; DTC C1942: Malfunction in Signal from Steering Sensor to Front Active Stabilizer Control ECU; DTC C1943: Front Vehicle Speed Signal; DTC C1946: Malfunction in Signal from Steering Control ECU to Front Active Stabilizer Control ECU >> Description

DTC C1940: Front Yaw Rate Sensor; DTC C1941: Front Acceleration Sensor; DTC C1942: Malfunction in Signal from Steering Sensor to Front Active Stabilizer Control ECU; DTC C1943: Front Vehicle Speed Signal; DTC C1946: Malfunction in Signal from Steering Control ECU to Front Active Stabilizer Control ECU: Description

The active stabilizer suspension system uses CAN communication to gather information necessary for control functions. When a malfunction occurs in another system, DTCs C1940, C1941, C1942, C1943 and C1946 are stored.

DTC Code Detection Condition Trouble Area
C1940 Yaw rate sensor malfunction
  • CAN communication line
  • Front active stabilizer control ECU
C1941 Acceleration sensor malfunction
C1942 Steering sensor malfunction
C1943 Speed sensor malfunction
C1946 Steering control ECU malfunction
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