Code
C1935
MITSUBISHI
C — Chassis
Transmitter OFF mode,Tire3
Views:
UK: 7
EN: 10
RU: 14
AI status
Completed
Completed
100%
Causes
- Dead or weak TPMS sensor battery
- Faulty/damaged TPMS sensor (cracked housing, broken antenna)
- Sensor not installed or incorrectly positioned after tire service
- Sensor not registered or ID not learned by vehicle ECU
- Faulty TPMS receiver/antenna module or poor antenna connection
- Wiring, connector, or ground fault to TPMS receiver/module
Symptoms
- TPMS warning lamp or message illuminated for tire 3
- Tire pressure for position 3 not displayed or shows “--”
- Intermittent TPMS warnings that may clear and return
- No sensor ID returned for wheel 3 in a TPMS scan tool readout
What to check
- Read stored codes and live TPMS data with a compatible scan tool
- Confirm the code corresponds to the correct wheel position per vehicle service manual
- Visually inspect wheel 3 for TPMS sensor and valve condition (corrosion, damage)
- Measure/all tires’ cold pressure and confirm proper inflation
- Attempt to read sensor 3 ID and data with a TPMS activation tool
- Inspect receiver/antenna module for power, ground, and connector security
Signal parameters
- Typical TPMS RF frequencies: ~315 MHz (NA) or ~433 MHz (EU/Asia) depending on market
- Sensor battery nominal voltage ~3.0 V (coin cell) — battery significantly lower indicates end of life
- Sensor transmits ID, tire pressure, temperature, and battery status at wake-up
- Receiver expects periodic transmissions while driving and on sensor wake via external tool
Diagnostic algorithm
- Connect a factory-level or qualified TPMS-capable scan tool; read and record C1935 and any other TPMS/communication codes.
- Confirm which physical wheel is “Tire 3” per vehicle manual (position numbering varies).
- Visually inspect wheel 3 sensor, valve stem, and rim area for damage or corrosion; check that the sensor is present and correctly mounted.
- Verify cold tire pressure on wheel 3 and other wheels; correct pressures if required.
- Use a TPMS activation tool at wheel 3 to try to wake the sensor and read its ID, pressure, temperature, and battery data. Note whether tool receives any signal.
- If the sensor does not respond, activate the adjacent wheels to confirm the activation tool and receiver are working (verify you can read other wheel sensors).
- If another sensor reads fine, swap the suspect sensor to a different wheel (or swap a known-good sensor to wheel 3) and re-check: if the fault follows the sensor, replace the sensor; if it stays with the wheel position, suspect receiver/antenna or wiring.
- Inspect and test TPMS receiver/antenna module: verify power, ground, and data connections; check for corrosion or connectors unplugged after recent service.
- Check body/CAN network communication for faults that might prevent TPMS module reporting. Address any communication faults first.
- If sensor battery is low or sensor is confirmed dead/damaged, replace sensor and perform sensor registration/learn procedure per manufacturer instructions.
- Clear codes and perform a test drive or re-scan after re-learn to confirm the code does not return.
- If new sensor does not work and receiver/module checks good, consider replacing receiver/module per service specifications.
Likely causes
- Aged TPMS sensor battery (most common)
- Sensor damaged during tire change or by corrosion
- Sensor lost registration after wheel work and not re-learned
- Receiver/antenna connector loose or receiver fault (less common)
Fault status
Status
TPMS receiver reports 'Transmitter OFF' for Tire 3 — no RF transmission detected from the wheel sensor at position 3.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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