DTC Advanced Diagnostics: P16E4
DTC P16E4:ACG High-temperature

General Description

The powertrain control module (PCM) continuously monitors the alternator via the local interconnect network (LIN) lines. If the PCM receives a high temperature information of the alternator, the PCM detects a malfunction and stores a DTC.

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

Enable Conditions
Condition
Minimum
Maximum
Engine speed [Engine Speed]
500 rpm
–
[ ]: HDS Parameter

Malfunction Threshold
The PCM receives a high temperature information of the alternator for at least 60 seconds.

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.
Alternator internal 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.