Infiniti QX56 C1709: Front Right TPMS Sensor Fault Causes & Fixes (2004-2011)

What's Unique About the 2004-2011 Infiniti QX56

For the 2004-2011 Infiniti QX56, the TPMS is generally reliable but is now at an age where sensor battery failure is common. A unique issue highlighted by Infiniti in a Technical Service Bulletin (TSB) is the system's susceptibility to radio frequency (RF) interference. Aftermarket electronics, such as cheap or poorly shielded phone chargers, dash cams, or even wireless game controllers, can sometimes block the 315 MHz signal from the TPMS sensor, causing a C1709 code even if the sensor itself is functional. This is a well-documented issue across many Nissan and Infiniti models of this era.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Generation note: This range covers two QX56 generations: the first-gen JA60 (2004-2010) and the first year of the second-gen Z62 (2011). While the C1709 code's meaning is the same, the specific TPMS sensor part numbers differ. Always verify the part with your vehicle's VIN before purchasing. The JA60 generation is a direct platform mate with the Nissan Armada and Nissan Titan, which share this exact TPMS architecture and associated problems.

Symptoms You May Notice

• The TPMS warning light on the dashboard flashes for about a minute upon startup and then stays on solid. This flashing sequence specifically indicates a system malfunction, as opposed to a solid light which just means low pressure.
• The vehicle's tire pressure display, if equipped, shows dashes ('--') or a blank for the front right tire.
• In some cases with RF interference, the light may only appear after extended driving (e.g., 15+ minutes on the freeway) and may reset itself after the car has been parked for several hours.

Most Likely Causes

1. Dead TPMS Sensor Battery 🔴 High Probability → Shop Tire Pressure Monitoring System (TPMS) Sensor The non-replaceable batteries inside TPMS sensors have a typical lifespan of 7-10 years. Vehicles in this 2004-2011 range are well beyond that point, making battery failure the most likely cause. This is the most common resolution reported by owners in forums.
   How to confirm: Use a TPMS activation tool (like an Autel or Bartec model) to try and read the sensor. If the tool gets no response (no ID, pressure, or temperature reading), the sensor's battery is dead or the sensor has failed.
   Typical fix: Replace the front right TPMS sensor and perform the TPMS relearn procedure to register the new sensor ID with the BCM.
   Est. part cost: $35-$90
2. Radio Frequency (RF) Interference ⚪ Low Probability Infiniti TSB ITB13039A and its successor, NTB13-088a, specifically note that aftermarket electronics (especially smart phone chargers, dash cams, and GPS units) can broadcast signals that interfere with the TPMS receiver. Forum users across multiple brands, including Nissan/Infiniti, have confirmed that low-quality USB chargers plugged into cigarette lighter adapters are a frequent culprit.
   How to confirm: Unplug all aftermarket electronic devices from the vehicle's power outlets. Clear the codes if possible, or simply drive the vehicle for 10-15 minutes at speeds over 25 MPH to see if the system resets and the light extinguishes. If the light goes out, plug devices back in one by one to identify the source of the interference.
   Typical fix: Remove or replace the interfering electronic device with a higher-quality, better-shielded alternative.
   Est. part cost: $0
3. Failed TPMS Sensor ⚪ Low Probability → Shop Tire Pressure Monitoring System (TPMS) Sensor Sensors can fail from physical damage during tire service or from internal electronic faults, though this is less common than simple battery death. The TSB also notes that deflating a tire while the sensor is at the 6 o'clock position can cause damage.
   How to confirm: If a TPMS tool cannot get a signal from the sensor, it has failed. This is diagnosed the same way as a dead battery. Visual inspection during tire dismounting may reveal physical damage.
   Typical fix: Replace the front right TPMS sensor and register the new sensor ID.
   Est. part cost: $35-$90

Rare But Worth Checking

• Faulty TPMS Control Module/Receiver: If a new, known-good sensor cannot be registered to the front right position, and RF interference has been ruled out, the TPMS receiver or the BCM itself may be faulty. This is uncommon and expensive, with module replacement costs potentially exceeding $1,300. Diagnosis involves checking the wiring continuity between the receiver and the control unit.

Diagnosis Steps

1. Verify the code C1709 is present using a scanner that can read Chassis (C) codes.
2. Check the TPMS warning light behavior: a flash for one minute followed by a solid light indicates a system fault like C1709.
3. Unplug ALL aftermarket accessories (phone chargers, dash cams, GPS, etc.) to eliminate radio frequency interference as a cause.
4. Clear codes and drive the vehicle for at least 10 minutes at speeds above 25 MPH to see if the light returns. If it does not, the issue was RF interference.
5. If the light returns, use a TPMS diagnostic tool (e.g., Autel, Bartec) to attempt to trigger and read the sensor at the front right wheel.
6. If the tool receives no data (ID, pressure, temperature), the sensor has failed (likely a dead battery) and must be replaced.
7. If the tool *does* receive data, the issue may be with the vehicle's receiver or the sensor registration. Attempt to perform the TPMS relearn procedure using the tool's OBDII function.
8. If a new sensor is installed but cannot be registered, further diagnosis of the TPMS receiver and its wiring is required, as outlined in the service manual.

Parts You'll Likely Need

• TPMS Sensor (2004-2010) (OEM #40700-CK002) — This is the direct replacement for the first-generation (JA60) QX56. The original sensor's battery has likely expired. This part is also used on the Nissan Armada, Titan, and other models from the same era.
  Trusted brands: Hitachi, Schrader, VDO, Denso, Huf
  OEM price range: $70-$90
  Aftermarket price range: $35-$60
• TPMS Sensor (2011) (OEM #40700-1LA0D) — This is the direct replacement for the second-generation (Z62) QX56. The original sensor's battery is at the end of its life. This part number may be superseded by 40700-1LA0E.
  Trusted brands: Hitachi, Schrader, VDO, Huf, Continental
  OEM price range: $80-$110
  Aftermarket price range: $40-$65

Related Codes That Often Appear With This One

• C1708, C1710, C1711 — These codes correspond to the other three wheels (Front Left, Rear Left, Rear Right). Seeing multiple codes at once can indicate that all sensor batteries are dying around the same time, or point towards a system-wide issue like RF interference or a faulty receiver.

Technical Service Bulletins (TSBs) & Recalls

• ITB13039A / NTB13-088a: Details common TPMS diagnostic information for Infiniti and Nissan vehicles, specifically citing 'Radio frequency interference causing a "No Data" (C1708, C1709, C1710, C1711) condition'. It also warns about potential sensor damage from improper tire deflation procedures.

Platform-Specific Known Issues

• Per TSB ITB13039A / NTB13-088a, this platform is known to be sensitive to RF interference from accessories plugged into the vehicle's power outlets, which can trigger a 'No Data' code like C1709. Owners have specifically identified cheap USB chargers as a common source of this interference.

Scan Tool Commands That Help

• Infiniti CONSULT-II / CONSULT-III: DATA MONITOR for AIR PRESSURE MONITOR — Used to view live data from the TPMS sensors after a drive cycle. If the front right sensor's data is missing or does not update, it confirms the 'No Data' condition of C1709.
• Infiniti CONSULT-II / CONSULT-III: Self-diagnosis for AIR PRESSURE MONITOR — This is the primary function to retrieve TPMS-related DTCs like C1709 from the BCM.
• Infiniti CONSULT-II / CONSULT-III with Signal Tech II (J-50190) or equivalent: ID REGIST — This function is required after replacing a TPMS sensor. It allows the technician to write the new sensor's unique ID into the Body Control Module (BCM).

Wiring & Ground Locations

• Body Control Module (BCM) — For the first generation (JA60, 2004-2010), the BCM is located in the driver's side footwell, to the left of the steering column, behind the lower dash panel. For the second generation (Z62, 2011), the BCM is integrated with the interior fuse box, located under the driver's side dashboard.. The BCM acts as the TPMS control unit/receiver. It receives signals from the wheel sensors and the remote keyless entry receiver. A failure in the BCM, its wiring, or its ground connection can prevent it from receiving the sensor signal, potentially mimicking a failed sensor and causing a C1709 code. A visual inspection for corrosion or loose connectors at the BCM is a valid, though advanced, diagnostic step.

Real Owner Repair Stories

• YouTube user 'Moe's Garage' (Nissan Armada (shared platform with JA60 QX56)) — TPMS light stayed on even after adjusting tire pressures, which had previously worked.
  ❌ Tried (didn't work) Simply adjusting tire pressures to the door placard specification.
  ✅ What actually fixed it The user performed a manual TPMS relearn procedure without a scan tool. This involved setting each tire to a specific, different pressure (e.g., FR 33, RR 30, RL 27, FL 36), then grounding a specific pin in a connector under the dash six times to put the system in learn mode. After driving a short distance, the light went off. This indicates the system had lost its sensor registrations, which was resolved by forcing a relearn.

OEM Part Supersession History

• 40700-CK001 → 40700-CK002 — Standard part revision and update.
  Heads up: These parts are generally interchangeable for the 2004-2010 (JA60) generation.
• 40700-1LA0A, 40700-1LA0B, 40700-1LA0C, 40700-1LA0D → 40700-1LA0E — Multiple revisions consolidating into a final part number for the 2011 (Z62) generation and later models.
  Heads up: For the 2011 model year, it is critical to use a part from the 40700-1LA0x series. The earlier 40700-CK002 will not work. 40700-1LA0E is the latest, most reliable replacement.

Model Year Variations Within This Range

• 2004-2010 (JA60): The TPMS functions are integrated into a standalone Body Control Module (BCM) located in the driver's side kick panel area. It uses sensor part number 40700-CK002 or its predecessors.
• 2011 (Z62): The TPMS functions are managed by a BCM that is physically integrated with the interior fuse box assembly under the driver's dash. This generation uses sensor part number 40700-1LA0D or its successor, 40700-1LA0E.