OBD-II Code C1707: A Highly Manufacturer-Specific Circuit Fault

What Does C1707 Mean?

C1707 is a chassis-related code pointing to a sensor circuit problem on the rear of the vehicle. Its exact meaning changes dramatically between car brands. For Nissan, it means 'Low Left Rear Tire Pressure'. For Ford, it indicates a 'Left Rear Center Parking Sensor Circuit Fault'. For Hyundai or Land Rover, it signifies 'A Vehicle Body Lopsidedness' detected by suspension height sensors. For Mitsubishi, it points to a software issue called 'Implausible Coding Data'.

Technical definition: The generic SAE definition for C1707 is 'Left Rear Center Sensor Circuit Fault.' This indicates the primary computer (PCM) or a specific control module detected an open, short, intermittent, or out-of-range signal from a left-rear-center sensor. Manufacturers apply this code to various systems, including the Parking Aid Module (PAM), Tire Pressure Monitoring System (TPMS), Electronic/Air Suspension Control Module (ECS/EAS), and Active Stability Control (ASC).

Can I Drive With C1707?

Yes, But With Caution. Driving is possible, but safety and convenience are compromised. For Nissan/Infiniti (TPMS), driving on a low tire risks a blowout. For Land Rover/Hyundai (suspension), continued driving causes a dangerously harsh ride and burns out the air suspension compressor, adding over $1,000 to the repair. For Ford (parking aid), the risk is a low-speed collision when reversing.

Common Causes

• Low Tire Pressure (Nissan/Infiniti) (Very Common) — On Nissan and Infiniti vehicles, this is the most frequent trigger. A tire puncture, a leaky valve stem, or cold weather drops the pressure below the 26-27 psi threshold, setting the code.
• Failed Sensor (Very Common) — The sensor itself frequently fails. TPMS sensor batteries die after 5-10 years. Suspension height sensor pivot arms seize or internal electronics short out. 🎬 Watch: How to replace a Range Rover rear height sensor. Parking sensors fail from moisture intrusion or minor impacts.
• Damaged or Corroded Wiring/Connectors (Very Common) — Sensor wiring is exposed to road salt, water, and debris. Wires chafe against suspension components, insulation cracks, and connector pins corrode, causing a poor or lost signal.
• Leaking Air Spring or Damaged Suspension (Land Rover/Hyundai/GM) (Common) — On vehicles with air or electronic suspension, a leaking rubber air spring or broken coil spring causes the vehicle to sag, forcing the height sensor to send an out-of-range signal.
• Improper Service/Repair Procedures (Common) — Technicians frequently damage sensors or wiring during tire changes, brake jobs, or suspension repairs. Using an incompatible TPMS sensor or failing to program a new sensor guarantees this code.
• Incorrect ECU Coding (Mitsubishi) (Less Common) — On Mitsubishi models, this code points to a data mismatch between control modules. This happens if a module like the ETACS-ECU is replaced without proper programming, or if a used module is installed.
• Dirty or Obstructed Sensor (Ford) (Less Common) — Ford's ultrasonic parking sensors are easily blocked by dirt, mud, snow, ice, or misplaced bumper stickers, preventing them from functioning.
• Failing Control Module or Weak Battery (Rare) — Control modules rarely fail, but a weak battery causes low system voltage, triggering spurious communication errors. The Mitsubishi fault requires system voltage between 9V and 18V to run its diagnostic check.

Symptoms

• Warning Light on Dashboard — The most common symptom is an illuminated TPMS light, ABS/stability control light, suspension warning light, or Check Engine light.
• Parking Assist System Inoperative or Beeping — The reverse sensing system turns off, displays a 'Check Park Aid' message, or emits a continuous tone when in reverse.
• Vehicle Tilted, Sagging, or Bouncy — Vehicles with air suspension exhibit a visible sag in one corner. The ride becomes extremely harsh and bouncy as the vehicle rides on the bump stops.
• Loss of ABS or Stability Control — If the code relates to a wheel speed sensor, the anti-lock braking and traction/stability control systems disable automatically as a safety precaution.
• Uneven Tire Wear — Suspension faults causing a persistent lean, or driving on an underinflated tire, rapidly accelerates uneven tire wear.

Diagnostic Flowchart

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

Common Fixes & Costs

• Inflate Tire and/or Repair Leak (Nissan/Infiniti) — Parts: $0-$30, Labor: $0-$50, ~0.2 hr book time (DIY)
• Replace TPMS Sensor (Nissan/Infiniti) — Parts: $40-$120, Labor: $80-$200, ~0.8 hr book time (Professional)
  : OEM
  : OEM
• Replace Parking Aid Sensor (Ford) — Parts: $45-$200, Labor: $75-$150, ~1.2 hr book time (Intermediate)
  : OEM
  : OEM
• Replace Air Suspension Height Sensor (Land Rover/Hyundai) — Parts: $120-$350, Labor: $150-$300, ~1.5 hr book time (Professional)
  : OEM
  : OEM
• Repair Damaged Wiring or Connector — Parts: $10-$50, Labor: $150-$400, ~2.5 hr book time (Intermediate)
• ECU Reprogramming or Recoding (Mitsubishi) — Parts: $0, Labor: $200-$500, ~2.0 hr book time (Professional)

Used vs. New Parts: Buying Guide

When a used part is worth it: Used parts make sense for simple, non-wearable components like parking aid sensors from a low-mileage, accident-damaged vehicle.

Donor-vehicle mileage cap: roughly under 60000 miles for the part to have meaningful remaining life.

Donor quality checklist:

• Verify the part number matches exactly.
• Ensure the donor vehicle was not scrapped due to flood or electrical fire.
• Look for sellers offering a 30-90 day warranty.

Decision logic:

• If The part is a TPMS sensor → Always buy new. Used TPMS sensors have a partially depleted, non-replaceable battery.
• If The part is an air suspension height sensor → New is strongly recommended. The cost of labor and mandatory calibration makes used sensors not worth the risk.
• If The part is a parking aid sensor → A tested used OEM sensor is a good option if the new OEM price is high. Avoid cheap, unbranded aftermarket sensors.

Warranty tradeoff: Used parts typically have a 30-90 day warranty. Aftermarket new parts offer 1-year warranties. OEM new parts carry a 1-2 year warranty but are the most expensive.

Worst-case if a used part fails: $200-$500, representing repeated labor for diagnosis and installation if the used part fails.

What Happens If You Wait — Timeline

1. 0-2 weeks: For TPMS, the warning light is on. For Suspension, a minor sag is noticeable overnight. For Parking Aid, the system is disabled. (MPG impact: 0-2%% · Added cost: $0-$20 in wasted fuel from a low tire.)
2. 2 weeks - 3 months: For TPMS, driving on a low tire causes uneven tread wear. For Suspension, the air compressor runs more frequently, causing accelerated wear. (MPG impact: 2-5%% · Added cost: $50-$250 (cost of one prematurely worn tire, or initial wear on the compressor).)
3. 3-6 months: For TPMS, continued driving risks permanent sidewall damage. For Suspension, the overworked air compressor is at high risk of burning out. (MPG impact: 3-8%% · Added cost: $1000-$1700 (cost of a new air suspension compressor and relay).)
4. 6+ months: For TPMS, a tire blowout occurs. For Suspension, driving on a fully collapsed corner damages the air spring and wheel bearings. (MPG impact: 5-15%% · Added cost: $1500-$4000+ (cost of a new wheel and tire, or a full corner air suspension rebuild).)

Cost of Not Fixing It

• Immediate: For TPMS: Increased risk of a tire blowout. For Suspension: Unsafe handling and harsh ride. For Parking Aid: Increased risk of a reverse collision. (Added cost: Variable; from minor bumper damage to a total loss accident.)
• 1-3 months: For TPMS: Accelerated uneven tire wear. For Suspension: The air suspension compressor overworks from constantly trying to level the vehicle, leading to premature failure. (Added cost: $200-$400 for a prematurely worn tire. $1000-$1500 for a new air suspension compressor.)
• 6+ months: For Suspension: Continued driving on a collapsed suspension damages the air spring, wheel bearings, and chassis components due to excessive vibration. (Added cost: $1500-$4000+ for replacing multiple suspension components.)

Diagnosis Steps

1. Identify the System by Vehicle Make
   This is the mandatory first step. Search your car's make, model, year, and 'C1707'. A Nissan C1707 is TPMS. A Ford C1707 is a parking sensor. A Hyundai C1707 is suspension. All subsequent steps depend on this identification.
   Tools: Internet access (Beginner)
2. Perform System-Specific Visual Inspection
   Inspect the relevant area. For TPMS, check tire pressure with a gauge. For suspension, park on level ground and measure fender-to-ground height at all four corners. For parking aids, check for dirt or damage on the bumper sensors. Look for broken wires or loose connectors.
   Tools: Flashlight, tire pressure gauge, tape measure (Beginner)
3. Scan and Analyze Live Sensor Data
   Use an OBD-II scanner to read manufacturer-specific live data. For suspension faults, monitor the voltage from each corner's height sensor (healthy is 1.0V-4.5V). For TPMS, check the pressure reading from the specific sensor. A '0V' or 'N/A' reading confirms a dead sensor or broken wire.
   Tools: OBD-II scanner with live data capability (Intermediate)
4. Listen for Sensor Operation (Parking Aid)
   For a Ford parking sensor, turn the key on (engine off), engage the parking brake, and shift into reverse. Place your ear next to the suspect sensor. A healthy sensor emits a faint, rapid clicking. Silence indicates failure.
   Tools: Your ears (Beginner)
5. Inspect Wiring and Connectors
   Safely raise the vehicle, unplug the sensor connector, and inspect for green/white corrosion or bent pins. Follow the wiring harness, looking for cuts, chafing against the frame, or exhaust heat damage.
   Tools: Flashlight, jack and jack stands (Intermediate)
6. Test the Circuit with a Multimeter
   With the connector unplugged and key on, test the harness side. A typical 3-wire sensor requires a 5V reference wire, a ground wire (near-zero ohms to chassis ground), and a signal wire. Missing reference voltage points to a wiring or module issue.
   Tools: Multimeter, vehicle-specific wiring diagram (Advanced)
7. Scope the Sensor Signal
   Use an oscilloscope to back-probe the signal wire with the sensor connected. As the suspension compresses or the wheel spins, you should see a clean, changing waveform. A flat line confirms a fault in the sensor or immediate wiring.
   Tools: Automotive oscilloscope, back-probe pins (Advanced)
8. Test Sensor Resistance
   For passive sensors, test internal resistance with the sensor unplugged. A typical passive sensor has 500-2,000 Ohms. An 'OL' reading indicates an open circuit, while 0 Ohms indicates a short.
   Tools: Multimeter, vehicle-specific service manual for specs (Advanced)
9. Diagnose CAN Bus (Mitsubishi)
   For Mitsubishi 'Implausible Coding Data', the fault is communication-based. Use a high-level scan tool to check for communication errors between the ETACS-ECU and other modules before addressing the C1707 code.
   Tools: Dealer-level scan tool (e.g., Mitsubishi M.U.T.-III) (Professional)

When This Code Triggers (Freeze-Frame Conditions)

• System Voltage: 11.5-14.5V (Low voltage (<11V) triggers various electronic faults, especially communication codes on Mitsubishi models.)
• Vehicle Speed: Varies by system (For TPMS, the fault logs after driving over 16-20 MPH. For suspension, it triggers at any speed. For parking aids, it triggers when active (in Reverse, <5 MPH).)
• Sensor Input Value: Out of Range (Freeze frame shows the specific sensor reading. A suspension height sensor reads 0V or 5V (short/open). A TPMS sensor reads below the threshold (e.g., <27 psi).)
• Time Since Code Set: Immediate (Chassis codes related to safety systems set immediately upon the control module detecting an out-of-spec reading or signal loss.)

Related Codes

• C1704, C1705, C1706 — On Nissan/Infiniti, these are low-pressure codes for the other three tires. Seeing them together means all tires are low.
• C1701, C1704, C1710 — On Ford vehicles, these are fault codes for the other parking aid sensors. C1707 is Left Rear Inner, pinpointing the exact sensor.
• C1708, C1709, C1710 — On Hyundai/Land Rover, these codes correspond to the other height sensors. The specific code-to-location mapping varies by model.
• U0140, U0121, U0415 — On Mitsubishi vehicles, these communication codes appear with C1707. Diagnose and fix the 'U' code first, as C1707 is often a symptom of the communication breakdown.

Climate & Environmental Factors

• Cold Climates: Causes air in tires to contract, dropping the pressure and triggering TPMS codes on Nissan/Infiniti vehicles. Makes rubber air springs stiffer and prone to cracking.
• High Humidity / Road Salt: Accelerates corrosion on exposed wiring harnesses, connectors, and sensor internals, causing intermittent signals.
• Extreme Off-Roading / Debris: Increases the risk of physical damage to exposed height sensors, linkage arms, and parking sensors.

How to Talk to a Mechanic About This Code

Say this: "I have a C1707 code on my [Your Car's Make and Model]. I understand this is a manufacturer-specific code and on my car it points to the [TPMS / Air Suspension / Parking Sensor / a software issue]. I'd like to schedule a diagnostic to confirm the exact point of failure before replacing any parts."

This tells the shop you're an informed customer. Specifying the system focuses their diagnostic efforts, saving time and money, and frames the conversation around diagnosis, not just parts replacement.

Avoid saying:

• 'My check engine light is on.' (This code often doesn't trigger the CEL)
• 'The internet said to replace the sensor.' (This invites them to replace it without proper diagnosis)
• 'Just fix whatever is wrong.' (This is a blank check for unnecessary work)

Questions to ask before authorizing the repair:

• For Suspension: Did you test the height sensor's voltage and inspect the wiring? Is a ride height calibration included in the labor cost?
• For TPMS: Can you confirm if the sensor's battery is dead or if it's a slow leak? Does your quote include programming the new sensor?
• For Parking Sensor: Did you perform a 'listen test' or check the wiring harness for damage before concluding the sensor failed?
• For Mitsubishi: Have you checked for other 'U' (communication) codes and diagnosed the CAN bus health first?
• Can you provide me with the specific part number for the replacement part and the warranty on both the part and the labor?

Where to Take It: Dealer vs Independent vs Chain

• Dealer: Necessary for Mitsubishi software issues; a good but expensive option for complex European air suspension.
  Best for: Mitsubishi 'Implausible Coding Data' faults that require the M.U.T.-III scan tool., Complex air suspension repairs on Land Rover, Jaguar, or Mercedes-Benz., Any vehicle still under warranty.
  Downsides: Highest labor rates., May recommend replacing an entire assembly when only a sensor or wire is bad. (Typical cost: +50% vs. baseline)
• Independent Shop: Best overall choice for most C1707 scenarios, provided you find a well-equipped, reputable shop.
  Best for: Ford parking sensor replacement., Nissan/Infiniti TPMS issues., Suspension faults on common domestic brands., Specialty independent shops for complex suspension work.
  Downsides: Quality and equipment vary greatly., May not have the specific software for ride height calibration or ECU coding. (Typical cost: +0% vs. baseline)
• Chain Shop: Acceptable only for the simplest TPMS issue. AVOID for all suspension, parking sensor diagnostics, and Mitsubishi software faults.
  Best for: Inflating a low tire on a Nissan.
  Downsides: Technician skill varies dramatically., Unlikely to have the tools for suspension calibration or wiring diagnostics., High pressure to upsell. (Typical cost: -10% vs. baseline)

When to Walk Away From the Repair

If the estimated repair cost exceeds 50% of the car's private-party value, pause and carefully consider your options.

• Car worth $15000, fix is $450: Fix it. A Ford parking sensor or Nissan TPMS sensor replacement is a minor cost relative to the car's value.
• Car worth $8000, fix is $3500: Borderline. A full air suspension corner rebuild on an older Land Rover is a significant investment. Get a second opinion.
• Car worth $4000, fix is $2500: Walk away. The repair cost is over 60% of the vehicle's value. It is not financially sensible to proceed.

What Scan Tool You Need for This Code

Minimum: A scanner that can read manufacturer-specific Chassis (C-codes) and display live sensor data. A basic code reader is not sufficient for C1707.

A $20 scanner shows 'No Codes Found' because it cannot access the TPMS, Suspension, or Body Control Modules. You need live data to diagnose the problem.

Budget: BlueDriver Pro / Ancel BD310 (~$90) — Reads manufacturer-specific codes from all modules. Displays live data from relevant sensors, allowing you to see the faulty reading.

Mid-range: Foxwell NT510 Elite / NT809BT (~$250) — Includes budget features plus crucial special functions. Performs TPMS sensor registration and ride height calibration for some models.

Professional: Autel MaxiCOM MK808 / Launch X431 CRP919XBT / GAP IIDTool (Land Rover) (~$450-600) — Offers dealer-level capabilities. Essential for complex jobs like Land Rover ride height calibration and diagnosing CAN bus faults on a Mitsubishi.

Rent vs buy: Renting a basic scanner is only useful for the initial code read. If your repair requires calibration or programming, you must buy a capable tool or go to a shop.

How to Clear the Code After You Fix It

1. Use an OBD-II scan tool to clear the code.
2. For Nissan TPMS, perform the relearn procedure, which involves driving at a specific speed for several minutes.
3. For Land Rover/Hyundai suspension, perform a ride height calibration with a compatible scan tool.
4. For all others, a simple code clear is sufficient.

Drive cycle (~15 minutes): For Nissan TPMS, inflating the tire and driving for 10-15 minutes above 16 MPH extinguishes the light. For suspension or parking aid faults, clear the code with a scanner immediately after repair and test drive.

Readiness monitors affected: Not applicable

Watch out for:

• Clearing the code without fixing the root cause results in the code returning immediately.
• Failing to perform a required relearn (TPMS) or calibration (suspension) prevents the repair from completing.
• Disconnecting the battery causes other issues and is not the recommended procedure.

Will This Fail Emissions / State Inspection?

No — by itself this code doesn't fail OBD inspection (but it can keep readiness monitors from setting, which causes a separate fail).

• California: A C-code will not fail the OBD-II smog check. However, an illuminated TPMS light is grounds for a safety inspection failure.
• New York: New York's annual safety inspection includes checking for illuminated ABS and TPMS warning lights. C1707 causes a safety inspection failure.
• Texas: A vehicle fails the annual safety inspection if the ABS or TPMS warning lamps are illuminated.

Most Commonly Affected Vehicles

• Nissan / Infiniti Most Models (Rogue, Frontier, Q50, etc.) (2007-2022) — Almost always means 'Low Left Rear Tire Pressure'. For 2016-2020 Infiniti Q50s, TSB ITB20-003 notes a common cause is a leaking TPMS valve stem seal.
• Ford F-150 / Super Duty / Explorer (2006-2020) — Logs C1707 for a fault in the inner left rear parking aid sensor. The sensor or the wiring harness behind the bumper are frequent culprits.
• Land Rover Discovery (LR3/LR4) / Range Rover / Range Rover Sport (2004-2023) — Indicates a rear height sensor circuit fault or 'Vehicle Body Lopsidedness'. Wiring harness connectors are a known failure point due to moisture.
• Hyundai Genesis / Equus (2009-2016) — On models with Electronic Control Suspension (ECS), C1707 points to a failed height sensor or leaking air spring causing a lean.
• Mitsubishi Outlander / Lancer / Mirage (2014-2022) — Sets C1707 for 'Implausible Coding Data', a software issue between the ETACS-ECU and other modules. Appears after a battery replacement or incorrect module installation.
• Chevrolet / GMC / Cadillac Suburban / Tahoe / Yukon / Escalade (2007-2020) — On models with Autoride (Z55) or Magnetic Ride Control (Z95), C1707 indicates a fault with the left rear suspension height sensor.
• Jaguar XJ / F-Pace / XE (2010-2023) — Jaguars with air suspension log C1707 for 'Vehicle Body Lopsidedness' or height sensor faults, sharing JLR platforms with Land Rover.
• Mercedes-Benz Various Models with Airmatic (2005-2018) — Indicates a fault with the left rear level sensor for the Airmatic suspension system, accompanied by a visible sag.

Manufacturer-Specific Notes

• Nissan / Infiniti: Code C1707 specifically means 'Low Rear Left Tire Pressure'. The first step is to check and correct the tire pressure. A flashing TPMS light indicates a system/sensor fault.
• Ford: Points to a fault with the 'Left Rear Inner Sensor' of the Parking Aid Module. Put the vehicle in reverse (engine off) and listen for a faint clicking; no clicking means the sensor failed.
• Land Rover / Jaguar: Indicates a fault with the air suspension, defined as 'Vehicle Body Lopsidedness'. Repair requires a mandatory ride height calibration with a specialized scan tool.
• Mitsubishi: Means 'Implausible Coding Data', a software error requiring a dealer-level scan tool (M.U.T.-III) to diagnose CAN bus health and re-code the modules.
• Hyundai: On models with Electronic Control Suspension, C1707 triggers when the ECS control unit detects an unusual height difference, typically caused by a failed height sensor or leaking air spring.

Real Owner Stories

2018 Infiniti Q50 with C1707

TPMS light came on. Owner checked tire pressure and it was normal. The light would clear but return after a few days.

Outcome: The TPMS sensor failed due to a dead internal battery. Replacing the sensor and programming it resolved the issue.

Lesson: If a TPMS light persists despite correct air pressure, suspect a failed sensor. A flashing TPMS light at startup is a key indicator of a sensor fault.

2016 Ford F-150 with Parking Sensor Fault

The 'Check Park Aid' message appeared on the dash. The system beeped continuously in reverse, even when nothing was there.

Outcome: The silent sensor (left rear inner) failed. The owner replaced the single sensor, fixing the problem immediately without programming.

Lesson: The 'listen test' effectively isolates a failed ultrasonic parking sensor. A silent sensor is almost always a dead sensor.

2018 Audi A6 with Air Suspension Failure and C1707

The car's ride height was uneven, the ride felt harsh, and a suspension warning light was on.

Outcome: The height sensor and damaged wiring harness were replaced. The repair required a full recalibration of the air suspension system.

Lesson: An uneven ride height is a critical symptom. Driving with a faulty height sensor burns out the expensive air suspension compressor. System calibration is mandatory.

Mitsubishi Outlander with C1707 after module replacement

A C1707 'Implausible Coding Data' code appeared after a used ETACS-ECU was installed.

Outcome: The dealership used a factory scan tool (M.U.T.-III) to properly code the used ETACS-ECU to the vehicle's specific configuration, resolving the data mismatch.

Lesson: On a Mitsubishi, C1707 is a software issue. Never install a used control module without expecting to have it professionally reprogrammed.

How to Prevent This Code From Triggering

• Perform periodic visual inspection of underbody wiring and sensors (Every oil change) — Catching chafed wiring, corroded connectors, or damaged sensors early prevents intermittent circuit faults.
• Apply dielectric grease to sensor connectors (When replacing a sensor or if connectors are exposed) — Dielectric grease seals out moisture, preventing pin corrosion and ensuring a good signal in salt-belt regions.
• Regularly clean parking sensors and inspect air springs (Monthly or during car washes) — Dirt obstructs parking sensors. Cleaning road grime off rubber air springs allows for easier inspection of cracks that lead to leaks.
• Protect exposed wiring harnesses with loom or heat-shield tape (As needed during repairs) — Using split-loom tubing or high-temperature fabric tape protects wires from abrasion, debris, and heat, preventing shorts.
• Replace all TPMS sensors at once (Every 7-10 years or with a new set of tires) — TPMS sensor batteries have a finite lifespan. Replacing all at once saves on future labor costs and avoids repeat visits.

Frequently Asked Questions

Can I fix C1707 myself?

It depends on the cause. You can easily inflate a Nissan tire or clean a Ford parking sensor yourself. However, replacing suspension sensors or reprogramming Mitsubishi modules requires professional calibration tools.

Why did C1707 appear after getting new tires?

This is very common. For TPMS systems, the sensor may have been damaged during the tire change, an incompatible sensor was used, or the new sensor wasn't programmed correctly.

What does 'Implausible Coding Data' mean on my Mitsubishi?

It indicates a software or communication conflict between your car's computers, not a mechanical failure. This happens when a control module receives mismatched vehicle configuration data from the main body computer. Fixing it requires a dealer-level scan tool to reprogram the modules.

I replaced the sensor but the code came back. What now?

This suggests the sensor was not the root cause or a required step was missed. Check if the new sensor needs programming (TPMS) or calibration (suspension height), and ensure you fixed the underlying problem like a leaking air spring.

Can a weak car battery cause a C1707 code?

Yes, a failing battery causes low voltage across the electrical system, triggering spurious error codes. This is a primary cause for the 'Implausible Coding Data' fault on Mitsubishi vehicles. The system requires a stable 9-18V to operate correctly.

How do I clear the C1707 code?

After fixing the underlying problem, clear the code with an OBD-II scanner. For a Nissan TPMS light due to low pressure, the light extinguishes after inflating the tire and driving.

My scanner gives a generic definition. How do I know which sensor it is?

You must use your vehicle's make to identify the specific system. A Ford C1707 is a bumper parking sensor, while a Land Rover C1707 is a suspension height sensor. A Nissan C1707 is a wheel pressure sensor, and a Mitsubishi C1707 is a software error.

Key Takeaways

• Code C1707 has no universal definition; it means low tire pressure on a Nissan, a broken parking sensor on a Ford, a collapsed air suspension on a Land Rover, or a software glitch on a Mitsubishi.
• On Nissan and Infiniti vehicles, C1707 specifically indicates low left rear tire pressure, triggering when the tire drops below 26-27 PSI.
• For Land Rover and Hyundai, C1707 signals a 'Vehicle Body Lopsidedness' fault, requiring immediate inspection of the air springs and height sensors to prevent a $1,000+ compressor failure.
• Mitsubishi models log C1707 for 'Implausible Coding Data', a software mismatch requiring a dealer-level M.U.T.-III scan tool to reprogram the affected control modules.