DTC P0630

DTC P0630:  VIN Not Programmed or Mismatch

General Description 

Courtesy of HONDA, U.S.A., INC.

The powertrain control module (PCM) stores a vehicle identification number (VIN) in the keep alive memory (KAM) 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 KAM after the vehicle is turned to the ON mode, or after the Clear command is executed. If the VIN is not registered in the KAM 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, OBD Status 

Execution	Continuous
Sequence	None
Duration	1 second or less
DTC Type	One drive cycle, MIL on
OBD Status	PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Enable Conditions 

Condition
Vehicle	ON mode

Malfunction Threshold 

The VIN is not registered in the KAM 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 KAM

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.