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Home >> Lexus >> 2008 >> ES 350 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - System & Component Testing, Removal, Inspection & Installation >> Active Control Engine Mount System >> DTC P16A0 G Sensor Circuit >> Description
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DTC P16A0 G Sensor Circuit: Description

A G sensor is installed on the front engine mount to detect vibration of the vehicle. The ECU uses signals sent from the G sensor to determine the vehicle condition, control the active control engine mount actuator, and detect malfunctions in the mount. If there is a malfunction in the G sensor, the ECU stops Active control engine mount operation.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
P16A0 While the power source voltage of the G sensor (VGS) is 4.8 V or more and less than 5.2 V, the GL1 voltage is less than 0.03 x VGS, or 0.94 x VGS or more for 10 seconds or more.
  • Acceleration sensor
  • Acceleration sensor power source circuit
  • Open or short in acceleration sensor circuit
  • Active control engine mount ECU
While the power source voltage of the G sensor (VGS) is less than 1 V, the GL1 voltage is less than 0.03 x VGS for 10 seconds or more.
Power source voltage of the G sensor is less than 4 8V or 5.2 V or more for 10 seconds or more.
Difference between the current 11-fold G sensor value and the last 11-fold G sensor value exceeds the specified value.
The G sensor standard voltage in the ECU remains less than 2 V or 3 V or more for 10 seconds or more.