DTC Troubleshooting: C0077-78
DTC C0077-78: Low Tire Air Pressure
NOTE:
Before troubleshooting, check the outside air temperature sensor. If outside air temperature sensor is failed, the VSA modulator-control unit may set this code.
Make sure to avoid lopsided loading on one side (left or right) of the vehicle and excessive loading.
Make sure to inflate the tires to recommended pressure, not higher than the specified pressure, when TPMS calibration is being performed.
Before you troubleshoot, review the general troubleshooting information.

DTC Description
DTC
Freeze Frame
C0077-78 Low Tire Air Pressure
    

1.
Tire pressure check:

Tire pressure check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Check all four tires for size, inflation, and wear.

Are all four tires the correct size, properly inflated, and worn evenly?

     
YES
     
     
     
The system is OK at this time. Do the TPMS calibration.?
     
NO
     
     
     
Install the correct tires, a known-good set of tires, or set the tires to the correct pressure, and do the TPMS calibration.?