DTC Troubleshooting: C0077-78

DTC C0077-78  : Low Tire Air Pressure

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• 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.

DTC (VSA)

1. 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, specified tire pressure, same speed rating, same brand/model, and are evenly worn?

   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 .