DTC Advanced Diagnostics: P16E8
DTC P16E8:PGM-FI-Shutter Grille LIN Communucation Error

General Description

The local interconnect network (LIN) line connects the shutter grille and the powertrain control module (PCM). The LIN uses a master/slave protocol to send and receive data to the different components on the line. The PCM is the master unit, which controls the engine electrical system. The shutter grille receives data from the PCM and provides feedback to the PCM, which allows the PCM to operate the engine electrical system efficiently. When the PCM does not receive signals from the shutter grille within its specified amount of time, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
5 seconds or more
DTC Type
One drive cycle, MIL off

Enable Conditions
Condition
 
Elapsed time after the vehicle condition is turned to the ON mode
3 seconds
12 volt battery voltage [BATTERY]
10.0 V
[ ]: HDS Parameter

Malfunction Threshold
Can not receive information sent by LIN line, or when the state that information is not normal continues more than 5 seconds.

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, it is possible that there may be other causes.
Shutter grille LIN line open
Shutter grille LIN line short to ground
Shutter grille failure
PCM internal circuit failure

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 with the scan tool Clear command or by disconnecting the 12 volt battery.