C1911 Tire ID Reception Failed – Tire 1

The Mitsubishi fault code C1911 – Tyre ID Reception Failed (Tyre 1) is a manufacturer-specific diagnostic trouble code stored by the TPMS (Tyre Pressure Monitoring System) ECU — also referred to on some Mitsubishi platforms as the W/C (Wheel Control) ECU. It indicates that the TPMS ECU has lost communication with the radio frequency pressure sensor assigned to the Tyre 1 position and has failed to receive a valid sensor ID transmission within the expected interval. On the standard Mitsubishi four-wheel TPMS numbering layout, Tyre 1 corresponds to the front left wheel. Unlike a low pressure code, C1911 is a sensor communication fault — the TPMS ECU cannot confirm the pressure status of the front left tyre at all while this code is active, and the TPMS warning light will be continuously illuminated.

What Does C1911 Mean on a Mitsubishi?

Each wheel on a Mitsubishi vehicle equipped with a direct TPMS system carries a battery-powered radio frequency sensor mounted inside the rim on the valve stem. Each sensor periodically broadcasts a data packet containing its unique ID, the current tyre pressure, temperature, and battery status. The TPMS ECU listens for these transmissions and cross-references the received sensor ID against the four IDs registered in its memory for each wheel position. C1911 is stored when the TPMS ECU fails to receive a valid transmission from the sensor registered to the Tyre 1 (front left) position for a defined timeout period — typically after several consecutive missed transmission intervals. This can result from a dead or dying sensor battery, a failed sensor, a sensor that is no longer registered to the ECU, RF signal interference, or a fault in the TPMS antenna or receiver circuit serving that wheel position.

Symptoms of C1911

C1911 presents with the following indicators:

• TPMS warning light continuously illuminated on the instrument cluster
• C1911 stored in the TPMS ECU when scanned with MUT-III or a compatible scanner
• No live pressure data displayed for Tyre 1 (front left) in the TPMS live data screen — position shown as absent, unknown, or dashes
• Front left tyre pressure status unknown — the TPMS system cannot monitor or alert for low pressure on this wheel while C1911 is active
• No driveability symptoms in most cases — C1911 is a TPMS communication fault
• Horn, steering wheel controls, or other ETACS functions unaffected — C1911 is isolated to the TPMS system
• Potential roadworthiness failure in markets where a permanently illuminated TPMS warning light is a testable item at inspection

Common Causes of C1911

• Dead or end-of-life TPMS sensor battery — the most common cause of C1911; most OEM TPMS sensor batteries last 7–10 years and cannot be replaced separately — the full sensor must be replaced when the battery fails
• Failed TPMS sensor — internal electronics fault — the sensor circuit board has failed due to age, impact damage, or corrosion, preventing any transmission even with sufficient battery voltage
• Sensor not registered to the TPMS ECU — a replacement sensor, a wheel swap, or a tyre rotation without TPMS relearn will result in the ECU holding a stale sensor ID that no longer matches any transmitting sensor in the Tyre 1 position
• Physical sensor damage — impact from a kerb strike, pothole, or tyre fitting machine contact has damaged the sensor body, antenna, or valve stem, preventing transmission
• Sensor valve stem corrosion causing internal sensor damage — severe corrosion of the metal TPMS valve stem can compromise the sensor body’s internal electronics over time
• RF signal interference — a rare cause; strong nearby RF sources can temporarily suppress TPMS sensor reception, though this typically produces an intermittent rather than persistent C1911
• TPMS antenna or receiver fault in the vehicle — a damaged TPMS receiving antenna or a wiring fault between the antenna and the TPMS ECU can prevent reception from one or all sensor positions
• Wheel fitted without a TPMS sensor — a spare wheel, winter wheel, or aftermarket wheel fitted without a compatible TPMS sensor will immediately generate C1911 for that position

Common Misdiagnoses

• New sensor fitted without relearn — C1911 returns immediately: A replacement TPMS sensor has a new unique ID that the TPMS ECU does not recognise. Fitting a new sensor alone does not resolve C1911 — the new sensor ID must be registered to the Tyre 1 position in the TPMS ECU using a TPMS relearn tool or MUT-III before the fault will clear.
• TPMS ECU replaced without testing the antenna circuit: If C1911 is caused by a faulty TPMS antenna or wiring fault rather than a dead sensor, replacing the TPMS ECU will not resolve the fault. The antenna circuit must be tested before any module replacement is considered.
• Sensor assumed dead without attempting to wake it: Some TPMS sensors enter a deep sleep or storage mode during prolonged vehicle inactivity or very cold conditions. A TPMS activation tool held at the front left wheel may successfully wake and read the sensor — confirming it is alive but sleeping — before condemning it as failed.
• C1911 assumed to mean the front left tyre is correctly inflated: C1911 means the pressure is unknown, not acceptable. The front left tyre pressure must always be physically verified with a calibrated gauge when C1911 is active — a failing sensor may have stopped transmitting while the tyre was simultaneously deflating.
• Wheel rotation performed without TPMS relearn: After a tyre rotation the sensor previously in the Tyre 1 position moves to another wheel position. If the TPMS ECU is not updated, it will continue looking for the old Tyre 1 sensor ID at the front left position — and will not find it, generating C1911 — while the sensor now physically at the front left transmits an ID the ECU does not recognise for that position.

Affected Mitsubishi Vehicles

Model	Generation	Notes	Years
Outlander PHEV	GG/GF (1st Gen)	Direct TPMS standard; Tyre 1 = front left; sensor battery life 7–10 years	2013–2021
Outlander PHEV	GN (2nd Gen)	Revised TPMS architecture; same C1911 definition and wheel numbering	2022–present
Outlander (non-PHEV)	GF/GG/ZJ/ZK/ZL	Direct TPMS — market-dependent; verify fitment before diagnosing	2007–present
Eclipse Cross	GK/GL	Direct TPMS standard on most market variants	2017–present
ASX / RVR	GA/XD	Direct TPMS on later variants; confirm system type before diagnosing C1911	2010–present
Galant Fortis / Lancer	CY/CZ	Market-specific TPMS fitment — verify direct vs indirect before diagnosing	2007–2017

Tools & Equipment Required

Tool	Purpose	Notes
Mitsubishi MUT-III / MUT-IV	TPMS ECU scan, live sensor data, sensor relearn, code clear	Required to confirm C1911, view registered sensor IDs, perform relearn, and clear after repair
TPMS activation / relearn tool	Wake and read sensor ID at each wheel; trigger relearn procedure	Required to confirm whether the front left sensor is transmitting and to register a replacement sensor
Calibrated tyre pressure gauge	Physically verify front left tyre pressure while C1911 is active	Always the first step — TPMS cannot monitor pressure on Tyre 1 while C1911 is present
Digital multimeter (DMM)	TPMS antenna circuit continuity and voltage testing	For antenna wiring diagnosis if sensor and relearn are confirmed good
Wiring diagram (OEM)	TPMS antenna circuit routing and ECU connector pinout	Mitchell1 DIY or Mitsubishi FAST-II
Tyre fitting machine	Tyre removal for sensor access and replacement	Required for sensor replacement — TPMS sensors are mounted inside the rim

Step-by-Step Diagnosis

• 1
  Physically Check the Front Left Tyre PressureBefore any scanning or sensor testing, check the front left tyre pressure with a calibrated gauge and compare against the vehicle placard pressure on the driver’s door jamb. C1911 means the TPMS system cannot monitor this tyre — never assume the pressure is acceptable. Inflate to the correct pressure if required before proceeding with TPMS diagnosis.
• 2
  Confirm C1911 and Review Live TPMS Data with MUT-IIIConnect MUT-III or equivalent and read all TPMS codes. Confirm C1911 is current. View the TPMS live data screen and note whether the Tyre 1 position shows no data, an absent sensor, or an unknown status. Note the sensor IDs registered to all four positions — this will be needed to cross-reference against physical sensor reads at each wheel.
• 3
  Attempt to Wake and Read the Front Left Sensor with a TPMS ToolHold a TPMS activation tool at the front left wheel, positioned at the valve stem. Activate the tool to send a low-frequency wake signal to the sensor. If the sensor responds, the tool will display the sensor ID, pressure, temperature, and battery status. A successful read confirms the sensor is alive — the fault may be a registration mismatch or a weak battery that is still functional but intermittent.
• 4
  Compare Sensor ID Against the TPMS ECU Registered ID for Tyre 1If the TPMS tool successfully reads a sensor ID at the front left wheel, compare it against the ID the TPMS ECU has registered for the Tyre 1 position. If the IDs do not match, the sensor at the front left wheel is not the one registered to this position — the most common cause is a wheel rotation or swap without TPMS relearn. If the IDs match but the ECU is still not receiving data, the sensor is failing or the vehicle antenna circuit has a fault.
• 5
  Check TPMS Sensor Battery StatusIf the TPMS tool successfully reads the front left sensor and the ID matches the ECU registration, note the battery status reported by the tool. A low battery warning indicates the sensor is approaching end of life and will soon fail to transmit entirely. A sensor reporting a dead or critically low battery should be replaced proactively rather than waiting for a complete transmission failure.
• 6
  Test the TPMS Antenna Circuit if the Sensor is Confirmed GoodIf the TPMS tool reads the front left sensor correctly, the battery is good, and the sensor ID matches the ECU registration, but C1911 persists, the fault is in the vehicle’s receiving side — the TPMS antenna or its wiring. Use a DMM and the OEM wiring diagram to check continuity and supply voltage at the TPMS antenna connector and between the antenna and the TPMS ECU. A damaged antenna cable or corroded connector will prevent the ECU from receiving the sensor’s RF transmission.

Scanner Readout Explained

====================================================
  MITSUBISHI MUT-III SE — DIAGNOSTIC REPORT
====================================================
  Vehicle:     2015 Outlander PHEV (GG3W)
  Date:        2025-03-27  10:17:09
====================================================
MODULE: TPMS / W-C ECU
----------------------------------------------------
  C1911  Tyre ID Reception Failed — Tyre 1 (Front Left)
         Status:       Confirmed / Current
         Freeze Frame:
           Tyre 1 Sensor ID (Registered):  0x4A3F2B1C
           Tyre 1 Last Received Signal:    >60 min ago
           Tyre 1 Pressure Status:         UNKNOWN
           TPMS Warning Lamp:             ON
====================================================
  LIVE DATA (TPMS Sensor Status — All Wheels)
====================================================
  Tyre 1 (Front Left):    --- bar  |  ---°C  |  NO SIGNAL — C1911 ACTIVE
  Tyre 2 (Front Right):   2.4 bar  |  21°C   |  Sensor OK
  Tyre 3 (Rear Left):     2.4 bar  |  21°C   |  Sensor OK
  Tyre 4 (Rear Right):    2.4 bar  |  22°C   |  Sensor OK
====================================================
  NOTE: Registered ID for Tyre 1 not
  responding. Pressure status unknown.
  Physical pressure check required.
====================================================

Step-by-Step Repair Guide

Repair Path A: TPMS Sensor Relearn After Wheel Rotation or Swap

• 1
  Read All Four Sensor IDs at Their Physical Wheel PositionsUsing a TPMS activation tool, read the sensor ID at each wheel in turn — front left, front right, rear left, rear right. Record all four sensor IDs and their current physical positions. This gives the correct registration map that needs to be entered into the TPMS ECU.
• 2
  Perform TPMS Sensor Relearn via MUT-III or Relearn ToolUsing MUT-III or a TPMS relearn tool, initiate the TPMS sensor registration procedure for the vehicle. Register each sensor ID to its correct wheel position — Tyre 1 (front left), Tyre 2 (front right), Tyre 3 (rear left), Tyre 4 (rear right) — using the IDs read at each physical position in the previous step.
• 3
  Clear C1911 and VerifyClear C1911 with MUT-III and drive the vehicle above 25 km/h for a short distance to allow all sensors to transmit to the ECU with their updated registered positions. Confirm the TPMS warning light extinguishes and that live data shows valid pressure readings for all four tyre positions including Tyre 1.

Repair Path B: TPMS Sensor Replacement

• 1
  Remove the Front Left Wheel and TyreRemove the front left wheel and take it to a tyre fitting machine. Break the tyre bead carefully on the valve stem side — the TPMS sensor is mounted on the valve stem inside the rim and must not be contacted by tyre levers or the bead breaker. Always inform the tyre fitter that a TPMS sensor is fitted before any tyre machine work begins.
• 2
  Remove the Failed Sensor and Fit the OEM ReplacementDeflate the tyre fully and unscrew the TPMS sensor valve stem nut from outside the rim. Withdraw the old sensor from inside the rim. Fit the new OEM or OEM-compatible sensor — insert from inside the rim, fit the new grommet and nut, and torque the nut to the workshop manual specification. Do not overtighten — the sensor body can crack if the nut is over-torqued against the rim.
• 3
  Refit the Tyre and Inflate to Placard PressureRefit the tyre to the rim using correct bead lubricant. Inflate to seat the bead, then adjust to the vehicle placard pressure. Refit the wheel and torque the wheel bolts to the workshop manual specification.
• 4
  Register the New Sensor ID to the Tyre 1 PositionUse a TPMS activation tool to read the new sensor ID at the front left wheel. Using MUT-III or a TPMS relearn tool, register the new sensor ID to the Tyre 1 position in the TPMS ECU. This step is mandatory — without relearn, the ECU will not recognise the new sensor and C1911 will return immediately.
• 5
  Clear C1911 and Verify All Four Sensor PositionsClear C1911 with MUT-III and drive above 25 km/h to allow the new sensor to transmit to the ECU. Confirm the TPMS warning light extinguishes and that live data shows valid pressure and sensor readings for all four tyre positions. Verify the new sensor ID is now correctly associated with the Tyre 1 position in the TPMS live data screen.

Repair Path C: TPMS Antenna Circuit Repair

• 1
  Locate the TPMS Antenna for the Front Left PositionUsing the OEM wiring diagram, identify the location of the TPMS receiving antenna serving the front left wheel position. On most Mitsubishi models this is routed in the front wheel arch area or the front subframe region. Inspect the antenna, its connector, and the full wiring run back to the TPMS ECU for damage, chafing, or corrosion.
• 2
  Test Antenna Circuit Continuity and Supply VoltageUsing a DMM and the OEM wiring diagram, check continuity of the antenna feed wires between the antenna connector and the TPMS ECU connector. Verify supply voltage at the antenna connector is within specification. An open circuit, short, or absent supply voltage in the antenna wiring will prevent the ECU from receiving any sensor transmission from the front left wheel position regardless of sensor condition.
• 3
  Repair or Replace the Antenna and Clear C1911Repair any identified wiring fault using standard automotive harness repair techniques, or replace the antenna assembly if the antenna element itself is damaged. Clear C1911 with MUT-III, drive above 25 km/h, and confirm live data shows valid pressure and sensor data for Tyre 1 with the warning light extinguished.

Repair Cost Estimates

Repair	Parts Cost (est.)	Labour (est.)	Total (est.)	DIY Difficulty
TPMS sensor relearn only — no new parts	€0	0.25–0.5 hr	€0–€50	Easy — requires TPMS relearn tool or MUT-III
TPMS sensor replacement (OEM)	€40–€120	0.5–1 hr	€70–€200	Medium — tyre removal and relearn required
TPMS sensor replacement (aftermarket compatible)	€20–€60	0.5–1 hr	€50–€140	Medium — confirm compatibility before fitting
TPMS antenna wiring repair	€5–€30	0.5–2 hr	€30–€180	Medium — requires DMM and wiring diagram
TPMS antenna replacement	€20–€80	0.5–1 hr	€50–€150	Medium
TPMS ECU replacement (if confirmed faulty)	€150–€400	1–2 hr	€200–€500	Hard — relearn of all four sensors required after replacement

Prevention & Maintenance Tips

• Always perform a TPMS sensor relearn after every wheel rotation, tyre change, or wheel swap — the single most preventable cause of C1911 is failing to update sensor positions in the TPMS ECU after moving wheels
• Replace all four TPMS sensors proactively when any one sensor reaches end of battery life — if one sensor battery has failed after 8–10 years, the remaining three are close behind; replacing all four at the same tyre change avoids repeat C1911 faults on other positions within a short period
• Always replace TPMS valve stem grommets and nuts when sensors are removed — reused grommets are a common cause of valve stem leaks after sensor reinstallation
• Inform tyre fitting technicians that TPMS sensors are fitted before any tyre machine work — mechanical contact from a bead breaker or tyre lever is a common cause of sensor damage during tyre changes
• Check monthly tyre pressures manually even when TPMS is functioning correctly — TPMS only alerts at approximately 25% below the recommended pressure; a tyre can be meaningfully under-inflated without triggering a warning
• Use only OEM or verified-compatible aftermarket TPMS sensors — sensors with incorrect RF frequencies or incompatible protocols will not communicate with the Mitsubishi TPMS ECU regardless of physical fitment

Frequently Asked Questions

Can I drive my Mitsubishi with C1911 stored?

The vehicle is driveable, but the TPMS cannot monitor or alert for low pressure on the front left tyre while C1911 is active. Before driving, always physically check the front left tyre pressure with a calibrated gauge. If the pressure is correct, the vehicle can be driven normally while the fault is being investigated — but the absence of TPMS monitoring on that wheel means any pressure loss will go undetected until the next manual check.

I just had my tyres rotated — is that why C1911 appeared?

Almost certainly yes. A tyre rotation moves each sensor to a new wheel position, but the TPMS ECU retains the old position assignments until a relearn is performed. After rotation, the sensor now physically in the front left position transmits an ID that the ECU does not recognise for Tyre 1 — so it logs C1911. The repair is a TPMS sensor relearn to update all four position assignments to match the new physical locations. No parts are required.

Will C1911 clear itself after driving?

Not if the sensor is genuinely failed, dead, or unregistered. If the sensor is alive but was in a temporary sleep or low-power state, it may resume transmitting after a period of driving — in which case the TPMS ECU may recover the signal and the warning light may extinguish. However, C1911 will remain stored in the TPMS ECU memory and requires active clearing with MUT-III even if the warning light goes out spontaneously.

Can I fit a universal aftermarket TPMS sensor to replace the failed one?

Some universal programmable aftermarket TPMS sensors are compatible with Mitsubishi TPMS systems and can be programmed to the correct RF frequency and protocol before fitting. However, compatibility must be confirmed for the specific model year before purchase — not all universal sensors support all Mitsubishi TPMS protocols. OEM or OEM-equivalent sensors eliminate compatibility risk entirely and are the recommended choice where budget allows.

How do I know if the sensor battery is dead or if the sensor is physically damaged?

A TPMS activation tool will attempt to wake the sensor using a low-frequency magnetic field signal. If the sensor has any remaining battery charge, it will respond to this wake signal and transmit its ID and battery status. If the tool receives no response after multiple attempts from close range at the valve stem, the sensor battery is exhausted or the sensor electronics have failed — in either case, sensor replacement is required. A physically damaged sensor — from a kerb impact or tyre fitting machine contact — typically shows visible damage to the sensor body or valve stem on inspection.

Do I need MUT-III specifically to do the TPMS relearn, or will any TPMS tool work?

Many professional and consumer TPMS relearn tools support Mitsubishi TPMS relearn procedures and can register sensor IDs to specific wheel positions without requiring MUT-III. The tool must explicitly list Mitsubishi compatibility for the specific model year. MUT-III is the definitive tool for Mitsubishi TPMS work and is preferred for its access to full live data and fault code clearing, but a quality third-party TPMS tool with Mitsubishi support is a practical alternative for sensor relearn and basic diagnostics.

What happens if I replace the TPMS sensor but forget to do the relearn?

C1911 will return immediately. The new sensor has a unique ID that the TPMS ECU has never seen — it is not automatically accepted as the Tyre 1 sensor. The ECU will continue looking for the old Tyre 1 sensor ID and will not find it. The relearn procedure is mandatory after any sensor replacement, without exception, to associate the new sensor ID with the correct wheel position.

Conclusion

Mitsubishi C1911 – Tyre ID Reception Failed (Tyre 1 / Front Left) is a TPMS communication fault indicating the ECU has lost contact with the sensor registered to the front left wheel position. The most common causes are a dead sensor battery, a failed sensor, or a missing TPMS relearn after a wheel rotation or tyre change. Always physically check the front left tyre pressure first, attempt to wake the sensor with a TPMS tool to confirm whether it is alive, identify whether the fault is a registration mismatch, a dead sensor, or an antenna wiring issue, and always perform a full TPMS relearn after any sensor replacement or wheel position change.