OBD Guide
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C1504

Tire Pressure Sensor 4

C1504 is an OBD-II diagnostic trouble code meaning: Tire Pressure Sensor 4. Common causes: discharged sensor battery, mechanical damage to the sensor (shock, corrosion). Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Tire pressure indicator is on
  • Lack of data on pressure in tire No. 4
  • False TPMS alarms

Causes

  • Discharged sensor battery
  • Mechanical damage to the sensor (shock, corrosion)
  • Radio signal interference (metal caps)
  • TPMS module antenna malfunction
  • Problems with the wiring harness (if the sensor is wired)
  • Malfunction of the sensor itself

How to Fix

  1. Visual inspection of the sensor and its mounting
  2. Checking tire pressure with a pressure gauge
  3. Resetting the error via OBD-II scanner and rechecking
  4. Programming a new sensor (if required)
  5. Replacing the sensor (usually requires tire removal)
  6. TPMS Module Diagnostics

Related codes

C1501C1502C1503C1505C1700

FAQ

What does the C1504 code mean?

C1504 is an OBD-II diagnostic trouble code that indicates: Tire Pressure Sensor 4

What causes a C1504 error code?

The most common causes of C1504 include: Discharged sensor battery; Mechanical damage to the sensor (shock, corrosion); Radio signal interference (metal caps); TPMS module antenna malfunction.

How do I fix a C1504 diagnostic trouble code?

To fix C1504: Visual inspection of the sensor and its mounting. Checking tire pressure with a pressure gauge. Resetting the error via OBD-II scanner and rechecking. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1504?

Limited driving only, diagnose soon

How much does it cost to fix C1504?

The estimated repair cost for C1504 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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