Code
C1931
MITSUBISHI
C — Chassis
Tire ID reception fail,Tire3
Views:
UK: 9
EN: 14
RU: 18
AI status
Completed
Completed
100%
Causes
- Dead or weak battery in the Tire 3 sensor
- Faulty or damaged Tire 3 sensor (mechanical or electronic failure)
- Sensor not programmed/registered to vehicle or ID mismatch
- RF interference or poor radio reception to receiver antenna
- Faulty TPMS receiver/module or antenna wiring/connectors
- Recent wheel/tire change, sensor swapped or mounted incorrectly
Symptoms
- TPMS warning lamp or message illuminated on dash
- No pressure/temperature data displayed for one wheel (Tire 3)
- Inconsistent or missing tire pressure readings after vehicle start
- Service message instructing to check Tire 3 sensor
What to check
- Read all stored TPMS/BCM codes with a scan tool and confirm C1931 is present
- Retrieve and compare stored sensor IDs with IDs being received by the vehicle (using a TPMS diagnostic tool)
- Attempt to activate Tire 3 sensor with a TPMS tool and read its telemetry (pressure, temp, battery voltage, sensor ID)
- Visually inspect wheel/tire for aftermarket sensor, damage, or incorrect mounting
- Inspect TPMS receiver/antenna connectors and wiring for corrosion, damage or poor connections
- Check for other related DTCs that may indicate module or wiring faults
Signal parameters
- Sensor RF frequency: typically 315 MHz or 433 MHz (region dependent)
- Sensor ID: 8–16 hex characters (tool dependent)
- Battery voltage: typically ~2.6–3.3 V for healthy sensor (varies by sensor)
- Tire pressure: typical operating range 100–500 kPa (15–75 psi) depending on vehicle
- Temperature: -40°C to +125°C (sensor operating range)
- Wakeup/telemetry interval: 30–300 seconds when stationary; more frequent when moving
Diagnostic algorithm
- Connect a scan tool and confirm C1931 and any other TPMS codes. Record stored sensor IDs from the vehicle.
- Use a TPMS activation/diagnostic tool at Tire 3 to attempt to read the sensor ID, pressure, temperature and battery voltage.
- If the sensor responds with valid telemetry and ID matches stored ID, check receiver/antenna wiring and module; if no response, proceed.
- If the sensor battery voltage is low or no telemetry, replace the Tire 3 sensor and program/learn the new sensor ID per manufacturer procedure.
- If a new sensor is installed or sensor IDs changed, perform the required TPMS relearn/registration procedure (manual or drive-based) until the system recognizes the sensor.
- Inspect TPMS receiver antenna and wiring for damage, corrosion or poor connections. Repair or replace as needed.
- If receiver/antenna and sensors are good but problem persists, check BCM/TPMS module software updates and consider module replacement if confirmed faulty.
- Clear codes, perform a drive cycle or relearn, and verify the TPMS warning no longer appears and the Tire 3 sensor reports correctly.
Likely causes
- Sensor battery at end of life (most common)
- Sensor physically damaged during tire service or by impact
- Sensor ID not learned after sensor replacement or wheel rotation
- Receiver antenna loose, corroded or disconnected
Fault status
Status
TPMS fault: Failed to receive ID from Tire 3 sensor. Check sensor battery/ID, RF reception, antenna and TPMS module.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Code
C1931
Other
C — Chassis
Air Suspension Front Compressor Relay Circuit Short To Battery
Views:
UK: 23
EN: 18
RU: 32
AI status
Completed
Completed
100%
Causes
- Dead or weak battery in the Tire 3 sensor
- Faulty or damaged Tire 3 sensor (mechanical or electronic failure)
- Sensor not programmed/registered to vehicle or ID mismatch
- RF interference or poor radio reception to receiver antenna
- Faulty TPMS receiver/module or antenna wiring/connectors
- Recent wheel/tire change, sensor swapped or mounted incorrectly
Symptoms
- TPMS warning lamp or message illuminated on dash
- No pressure/temperature data displayed for one wheel (Tire 3)
- Inconsistent or missing tire pressure readings after vehicle start
- Service message instructing to check Tire 3 sensor
What to check
- Read all stored TPMS/BCM codes with a scan tool and confirm C1931 is present
- Retrieve and compare stored sensor IDs with IDs being received by the vehicle (using a TPMS diagnostic tool)
- Attempt to activate Tire 3 sensor with a TPMS tool and read its telemetry (pressure, temp, battery voltage, sensor ID)
- Visually inspect wheel/tire for aftermarket sensor, damage, or incorrect mounting
- Inspect TPMS receiver/antenna connectors and wiring for corrosion, damage or poor connections
- Check for other related DTCs that may indicate module or wiring faults
Signal parameters
- Sensor RF frequency: typically 315 MHz or 433 MHz (region dependent)
- Sensor ID: 8–16 hex characters (tool dependent)
- Battery voltage: typically ~2.6–3.3 V for healthy sensor (varies by sensor)
- Tire pressure: typical operating range 100–500 kPa (15–75 psi) depending on vehicle
- Temperature: -40°C to +125°C (sensor operating range)
- Wakeup/telemetry interval: 30–300 seconds when stationary; more frequent when moving
Diagnostic algorithm
- Connect a scan tool and confirm C1931 and any other TPMS codes. Record stored sensor IDs from the vehicle.
- Use a TPMS activation/diagnostic tool at Tire 3 to attempt to read the sensor ID, pressure, temperature and battery voltage.
- If the sensor responds with valid telemetry and ID matches stored ID, check receiver/antenna wiring and module; if no response, proceed.
- If the sensor battery voltage is low or no telemetry, replace the Tire 3 sensor and program/learn the new sensor ID per manufacturer procedure.
- If a new sensor is installed or sensor IDs changed, perform the required TPMS relearn/registration procedure (manual or drive-based) until the system recognizes the sensor.
- Inspect TPMS receiver antenna and wiring for damage, corrosion or poor connections. Repair or replace as needed.
- If receiver/antenna and sensors are good but problem persists, check BCM/TPMS module software updates and consider module replacement if confirmed faulty.
- Clear codes, perform a drive cycle or relearn, and verify the TPMS warning no longer appears and the Tire 3 sensor reports correctly.
Likely causes
- Sensor battery at end of life (most common)
- Sensor physically damaged during tire service or by impact
- Sensor ID not learned after sensor replacement or wheel rotation
- Receiver antenna loose, corroded or disconnected
Fault status
Status
TPMS fault: Failed to receive ID from Tire 3 sensor. Check sensor battery/ID, RF reception, antenna and TPMS module.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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