DTC Advanced Diagnostics: P062F
DTC P062F:Powertrain Control Module (PCM) Internal Control Module Keep Alive Memory (KAM) Error

General Description

The powertrain control module (PCM) is equipped with an electrically erasable programmable read-only memory (EEPROM). The data (control learn data, etc.) for powertrain control and information (vehicle identification number (VIN), etc.) related to the vehicle control is stored in the EEPROM, so that it can be maintained even when power is not supplied to the PCM, such as when the 12 volt battery is disconnected. When powered up, the CPU retrieves the stored information from the EEPROM, as well as writes data to the EEPROM (control related data is written when the vehicle is turned to the ON mode, and vehicle information when commanded from the HDS). When the data retrieval or data writing process is not finished normally, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
1 second or more
DTC Type
One drive cycle, MIL on

Enable Conditions
Condition
 
Vehicle
ON mode

Malfunction Threshold
A malfunction is detected whenever the EEPROM data retrieval and writing process is not completed normally.

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.
PCM internal circuit failure

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, 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.