DTC Advanced Diagnostics: P16E3

DTC P16E3:PGM-FI-Battery Sensor LIN Communication Error

General Description

The local interconnect network (LIN) line is connects the 12 volt battery sensor 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 12 volt battery sensor unit and the alternator are the slaves. The 12 volt battery sensor 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 12 volt battery sensor within its specified amount of time, the PCM detects a malfunction and stores a DTC.

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

Execution	Continuous
Sequence	None
Duration	5 seconds or more
DTC Type	One drive cycle, MIL off
OBD Status	PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Enable Conditions

Condition	Minimum	Maximum
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

Either one of the conditions is met for at least 5 seconds:

	The PCM cannot receive any information via the LIN(BATT SENSOR) line.
	The information sent from the 12 volt battery sensor is abnormal.

Possible Cause

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

	12 volt battery sensor failure (include fuse blown)
	12 volt battery sensor LIN(BATT SENSOR) line open
	12 volt battery sensor LIN(BATT SENSOR) line short
	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.