OBD Guide
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C1715

Rear Left Transmitter Is Malfunctioning

C1715 is an OBD-II diagnostic trouble code meaning: Rear Left Transmitter Is Malfunctioning. Common causes: physical damage to the sensor during tire installation/removal, low or faulty transmitter battery. Estimated repair cost: $22–89.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • TPMS lamp is on
  • Bad sensor icon on the information display
  • Incorrect pressure readings for the left rear wheel
  • Continuous TPMS warning
  • Lack of response when tire pressure changes

Causes

  • Physical damage to the sensor during tire installation/removal
  • Low or faulty transmitter battery
  • Damage to the pressure sensor inside the transmitter
  • Corrosion of the sensor housing due to exposure to road reagents
  • Mechanical shock when hitting a hole or curb

How to Fix

  1. Check the pressure in the left rear wheel with a pressure gauge
  2. Read TPMS data with a scanner to clarify the nature of the malfunction
  3. Inspect the sensor with the wheel removed for visible damage.
  4. Try re-initializing (training) the sensor
  5. Replace the faulty sensor-transmitter
  6. Register a new sensor in the TPMS control unit

Related codes

C1710C1713C1714C1716

FAQ

What does the C1715 code mean?

C1715 is an OBD-II diagnostic trouble code that indicates: Rear Left Transmitter Is Malfunctioning

What causes a C1715 error code?

The most common causes of C1715 include: Physical damage to the sensor during tire installation/removal; Low or faulty transmitter battery; Damage to the pressure sensor inside the transmitter; Corrosion of the sensor housing due to exposure to road reagents.

How do I fix a C1715 diagnostic trouble code?

To fix C1715: Check the pressure in the left rear wheel with a pressure gauge. Read TPMS data with a scanner to clarify the nature of the malfunction. Inspect the sensor with the wheel removed for visible damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1715?

Yes, but get it checked soon

How much does it cost to fix C1715?

The estimated repair cost for C1715 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

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