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Home / DTC / C0077 — Low Tire Pressure

C0077 — Low Tire Pressure

Detailed page for trouble code C0077.

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C0077

Generic C — Chassis

Low Tire Pressure

Brand: Generic
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Actual low tire pressure (slow leak, puncture, valve core leak)
  • Rapid ambient temperature drop causing pressure loss
  • Damaged or corroded valve stem or sensor
  • Failed TPMS sensor (dead battery or internal fault)
  • Sensor not learned/recognized after wheel service or rotation
  • Faulty TPMS control module or antenna (RF receiver)

Symptoms

  • TPMS warning lamp or dashboard low-pressure message illuminated
  • One or more tires visibly low or soft to touch
  • Reduced fuel economy or changed vehicle handling if pressure is severely low
  • Tire pressure readouts missing or showing incorrect values on dash/scan tool
  • Intermittent warning after temperature change or after driving at speed

What to check

  • Visually inspect all tires (including spare) for punctures, cuts, nails, tears and proper seating
  • Measure cold tire pressures with a calibrated gauge and compare to placard values
  • Use a TPMS-capable scan tool to read sensor IDs, pressure, temperature, battery status and stored DTCs
  • Check for recent tire service, rotation or replacement (sensors may not have been relearned)
  • Inspect valve stems and sensor hardware for damage or corrosion
  • Verify TPMS module/antenna power and CAN communication (scan tool data, bus errors)

Signal parameters

  • Sensor RF frequency: typically 315 MHz or 433 MHz (manufacturer-specific)
  • Sensor battery voltage: ~3.0 V nominal (reported by some sensors)
  • Tire pressure value: psi or kPa per wheel (live telemetry)
  • Sensor ID (unique RF serial) and last-seen timestamp
  • CAN bus PID/parameter for TPMS data (module-to-cluster messages)
  • RSSI or signal quality indicator from each sensor

Diagnostic algorithm

  1. Step 1 — Safety and initial inspection: Park on level ground, chock wheels, measure and record cold pressure for all tires (including spare).
  2. Step 2 — If any tire is low: inspect for puncture/slow leak, repair or replace tire as required, inflate to recommended pressure and recheck after 24 hours to confirm no slow leak.
  3. Step 3 — Scan for DTCs: connect TPMS-capable scan tool, read C0077 plus any related codes, note missing sensor IDs or low battery statuses.
  4. Step 4 — Verify sensor RF: use scan tool or TPMS activation tool at each wheel to confirm sensor transmits ID, pressure and battery info. Replace sensor if no transmission or battery low.
  5. Step 5 — Inspect valve/sensor hardware and rim: remove wheel if needed to check sensor mounting, valve core, nut torque and for physical damage/corrosion. Replace faulty components.
  6. Step 6 — Check module/antenna and wiring: verify power/ground, CAN communication and antenna connections at TPMS module. Repair wiring or connectors as required.
  7. Step 7 — Relearn/program sensors: if sensors were replaced or wheels refitted, perform relearn/initialization per vehicle procedure so module recognizes sensor IDs.
  8. Step 8 — Clear codes and validate: clear DTCs, reset TPMS warning, drive vehicle or perform relearn routine until system shows all sensors and pressures normal. Re-scan to confirm no reoccurrence.
  9. Step 9 — If problem persists: perform deeper network diagnostics (check for CAN errors, module replacement) or consult manufacturer service information for vehicle-specific tests.

Likely causes

  • One tire underinflated due to slow leak or puncture
  • TPMS sensor battery at end of life or sensor failure
  • Sensor removed or not reprogrammed after tire service
  • Intermittent RF reception/antenna fault or wiring/CAN issue

Fault status

⚠️ Status
TPMS detected tire pressure below threshold or a TPMS sensor communication fault. Driver alert active — inflate affected tire(s) to recommended pressure or repair faulty TPMS components. Some stability/traction functions may be affected if underinflation is severe.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

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Code

C0077

HYUNDAI C — Chassis

Low Tire Pressure (Subfault)

Brand: HYUNDAI
Type: C — Chassis
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Actual low tire pressure (slow leak, puncture, valve core leak)
  • Rapid ambient temperature drop causing pressure loss
  • Damaged or corroded valve stem or sensor
  • Failed TPMS sensor (dead battery or internal fault)
  • Sensor not learned/recognized after wheel service or rotation
  • Faulty TPMS control module or antenna (RF receiver)

Symptoms

  • TPMS warning lamp or dashboard low-pressure message illuminated
  • One or more tires visibly low or soft to touch
  • Reduced fuel economy or changed vehicle handling if pressure is severely low
  • Tire pressure readouts missing or showing incorrect values on dash/scan tool
  • Intermittent warning after temperature change or after driving at speed

What to check

  • Visually inspect all tires (including spare) for punctures, cuts, nails, tears and proper seating
  • Measure cold tire pressures with a calibrated gauge and compare to placard values
  • Use a TPMS-capable scan tool to read sensor IDs, pressure, temperature, battery status and stored DTCs
  • Check for recent tire service, rotation or replacement (sensors may not have been relearned)
  • Inspect valve stems and sensor hardware for damage or corrosion
  • Verify TPMS module/antenna power and CAN communication (scan tool data, bus errors)

Signal parameters

  • Sensor RF frequency: typically 315 MHz or 433 MHz (manufacturer-specific)
  • Sensor battery voltage: ~3.0 V nominal (reported by some sensors)
  • Tire pressure value: psi or kPa per wheel (live telemetry)
  • Sensor ID (unique RF serial) and last-seen timestamp
  • CAN bus PID/parameter for TPMS data (module-to-cluster messages)
  • RSSI or signal quality indicator from each sensor

Diagnostic algorithm

  1. Step 1 — Safety and initial inspection: Park on level ground, chock wheels, measure and record cold pressure for all tires (including spare).
  2. Step 2 — If any tire is low: inspect for puncture/slow leak, repair or replace tire as required, inflate to recommended pressure and recheck after 24 hours to confirm no slow leak.
  3. Step 3 — Scan for DTCs: connect TPMS-capable scan tool, read C0077 plus any related codes, note missing sensor IDs or low battery statuses.
  4. Step 4 — Verify sensor RF: use scan tool or TPMS activation tool at each wheel to confirm sensor transmits ID, pressure and battery info. Replace sensor if no transmission or battery low.
  5. Step 5 — Inspect valve/sensor hardware and rim: remove wheel if needed to check sensor mounting, valve core, nut torque and for physical damage/corrosion. Replace faulty components.
  6. Step 6 — Check module/antenna and wiring: verify power/ground, CAN communication and antenna connections at TPMS module. Repair wiring or connectors as required.
  7. Step 7 — Relearn/program sensors: if sensors were replaced or wheels refitted, perform relearn/initialization per vehicle procedure so module recognizes sensor IDs.
  8. Step 8 — Clear codes and validate: clear DTCs, reset TPMS warning, drive vehicle or perform relearn routine until system shows all sensors and pressures normal. Re-scan to confirm no reoccurrence.
  9. Step 9 — If problem persists: perform deeper network diagnostics (check for CAN errors, module replacement) or consult manufacturer service information for vehicle-specific tests.

Likely causes

  • One tire underinflated due to slow leak or puncture
  • TPMS sensor battery at end of life or sensor failure
  • Sensor removed or not reprogrammed after tire service
  • Intermittent RF reception/antenna fault or wiring/CAN issue

Fault status

⚠️ Status
TPMS detected tire pressure below threshold or a TPMS sensor communication fault. Driver alert active — inflate affected tire(s) to recommended pressure or repair faulty TPMS components. Some stability/traction functions may be affected if underinflation is severe.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

C0078 C0110 C1201 U0100 P0456
371

Browse 371 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

HYUNDAI

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