DTC Advanced Diagnostics: P0630
DTC P0630:VIN Not Programmed or Mismatch

General Description

The powertrain control module (PCM) stores a vehicle identification number (VIN) in the electrically erasable programmable read-only memory (EEPROM) and outputs the VIN according to commands from the HDS. The VIN for each vehicle is registered to the PCM using the HDS. The registered VIN is read by the CPU from the EEPROM after the vehicle is turned to the ON mode or after the Clear command is executed. If the VIN is not registered in the EEPROM when the vehicle is turned to the ON mode or when the Clear command is executed, the PCM detects a VIN unregistered condition and stores a DTC.

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

Enable Conditions
Condition
 
Vehicle
ON mode

Malfunction Threshold
The VIN is not registered in the EEPROM in the PCM.

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.
VIN not registered in the PCM EEPROM

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
When the VIN registration is completed, the MIL is cleared.