P16C6

Advanced Diagnostics - DTC P16C6: Engine Mount Actuator High Voltage During Function Test






General Description
The engine mount control system controls the engine mounts electronically. The system consists of the engine mount actuators, the engine mount control unit, and the powertrain control module (PCM). The engine mount control unit uses the crankshaft and camshaft position sensor outputs (received from the PCM) to estimate engine vibration. The engine mount control unit then sends signals to the engine mount actuators to command the engine mounts to push and pull on the engine to counteract the engine vibration. The engine mount control unit monitors the front engine mount actuator, and when an abnormal condition continues for a set time, the engine mount control unit detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status






Enable Conditions






Malfunction Threshold
One of these conditions occurs:
- The value during one cycle of front engine mount actuator current is 7.5 A or more as a maximum current or 5.3 A or more as a minimum current.
- Engine mount cycles during current start up and continues.
- The duty cycle of the front engine mount actuator reads 100 % all the time during engine mount operation and continues at least 20 seconds.

Diagnosis Details

Conditions for setting the DTC
When a malfunction is detected, a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC
The Pending DTC, the Confirmed DTC, and the freeze data can be cleared by using the scan tool Clear command or by disconnecting the battery.