P16A1

2GR-FE ENGINE CONTROL SYSTEM: ACTIVE CONTROL ENGINE MOUNT SYSTEM: P16A1: Linear Solenoid Circuit or G Sensor Circuit

DTC P16A1 - Linear Solenoid Circuit or G Sensor Circuit

DESCRIPTION

The ECU receives information from the G sensor, ECM (engine speed, engine load ratio coolant temperature, and shift position) skid control ECU (vehicle speed), and A/C ECU (ambient temperature). Based on this information, the ECU drives the solenoid actuator that is built in the front mount to generate vibration that is opposite to the engine vibration in order to reduce engine vibration.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST BY TECHSTREAM (CHECK THE E-ACM)
(a) Connect Techstream to DLC3.
(b) Start the engine and turn the tester ON.
(c) Enter the following menus: Powertrain / E-ACM / Active Test.
(d) Check if the active mount control actuator operates.
Standard:
The active mount control actuator operates normally.
OK -- CHECK ACCELERATION SENSOR
NG -- Continue to next step.
2. CHECK FRONT ENGINE MOUNTING INSULATOR (ACTIVE CONTROL ENGINE MOUNT ACTUATOR)




(a) Disconnect the B10 active control mount actuator connector.
(b) Measure the resistance between the ACT+ and ACT- terminals of the actuator connector.
Standard resistance:






NG -- REPLACE FRONT ENGINE MOUNTING INSULATOR
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (ECU - ACTUATOR)




(a) Disconnect the A9 active control engine mount ECU connector and B10 active control engine mount actuator connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE ACTIVE CONTROL ENGINE MOUNT ECU