P16A0

2GR-FE ENGINE CONTROL SYSTEM: ACTIVE CONTROL ENGINE MOUNT SYSTEM: P16A0: G Sensor Circuit

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.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (G SENS VOL (1X))
(a) Connect Techstream to DLC3.
(b) Start the engine and turn the tester on.
(c) Enter the following menus: Powertrain / E-ACM / Data List.
(d) Read the G Sensor Output Vol (1x) value.
Standard voltage:
The voltage changes within the range of 0.11 to 4.46 V.
NG -- CHECK HARNESS AND CONNECTOR (ACTIVE CONTROL ENGINE MOUNT ECU - ACCELERATION SENSOR)
OK -- Continue to next step.
2. READ VALUE USING TECHSTREAM (G SENSOR OUTPUT VOL (11X) AND G SENSOR STANDARD VOLTAGE)
(a) Connect Techstream to DLC3.
(b) Start the engine and turn the tester ON.
(c) Enter the following menus: Powertrain / E-ACM / Data List.
(d) Read the G Sensor Output Vol (11x).
Standard voltage:
The voltage changes within the range of 0 to 5 V.
(e) Read the G Sensor Standard Voltage value.
Standard voltage:
1.94 to 3.08 V
OK -- REPLACE ACTIVE CONTROL ENGINE MOUNT ECU
NG -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (ACTIVE CONTROL ENGINE MOUNT ECU - ACCELERATION SENSOR)




(a) Disconnect the A9 E-ACM ECU connector and B11 acceleration sensor connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK POWER SOURCE CIRCUIT (ACCELERATION SENSOR)




(a) Disconnect the B11 acceleration sensor connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- REPLACE ACTIVE CONTROL ENGINE MOUNT ECU
OK -- REPLACE ACCELERATION SENSOR