P1713 — Transfer Case Neutral Indicator Hard Fault Present

For Ford vehicles

transmission fluid temperature sensor

powertrain (engine/transmission)

Is it safe to drive?

Short-term driving is OK In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm P1713 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the transfer case neutral indicator hard fault present for damage, corrosion, chafing or poor contact.
Subsystem check Measure reference voltage, ground and signal continuity at the component connector.
Subsystem check Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P1713 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P1713 (parts and labor, USD, independent shop rates): Replace the faulty sensor or actuator: $150–$500; Control module repair: $300–$1,000; Repair wiring or connectors: $80–$250. Overall, fixing P1713 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

Will P1713 clear itself?

Sometimes P1713 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

Is it safe to drive with P1713?

In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

What is the most common cause of P1713?

The most common causes are: faulty sensor or actuator of the affected circuit, poor ground connection, blown fuse feeding the circuit.

How do I diagnose P1713 myself?

Start with a scan: confirm P1713, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the sensor and actuator circuits, and verify the suspect component against live data before buying parts.

What does OBD2 code P1713 mean?

Transfer Case Neutral Indicator Hard Fault Present (P1713): a powertrain (engine/transmission) fault affecting the sensor and actuator circuits. The car is usually drivable while you plan the repair. Most often caused by faulty sensor or actuator of the affected circuit, poor ground connection, blown fuse feeding the circuit.

When your vehicle's computer decides something is genuinely wrong with the transfer case neutral indicator circuit, it logs trouble code P1713. Unlike codes that pop up from a single glitchy reading, this one gets stored only after the onboard diagnostics run through the condition multiple times under specific driving situations and confirm the problem persists. Think of it as the PCM being thorough — it won't light up your Check Engine lamp until it has solid evidence.

The transfer case neutral indicator is part of the system that lets you shift a four-wheel-drive or all-wheel-drive vehicle into neutral, which becomes necessary when towing or performing certain service procedures. The indicator itself is a simple component — it tells the driver and the control module whether the transfer case is actually sitting in neutral. When the wiring, connectors, sensors, or the module that drives this circuit develop a hard fault — meaning an open circuit, a short to ground or voltage, or a complete loss of signal — the ECU flags P1713. The freeze frame data captured alongside this code is particularly useful, because it records engine load, RPM, coolant temperature, and vehicle speed at the exact moment the fault was detected, giving you a roadmap for recreating the failure during testing.

Symptoms

P1713 rarely announces itself with dramatic drama. Instead, it typically shows up as one or more of the following:

The Check Engine light illuminates and stays on.
The transfer case neutral indicator may fail to illuminate when it should, or it may stay on continuously.
The vehicle could enter a reduced-power limp mode, depending on how the manufacturer programs the affected module.
The indicator or related system operates inconsistently — working one moment and cutting out the next.
Some drivers notice a slight uptick in fuel consumption when the circuit is malfunctioning.

Causes

The root cause of P1713 almost always traces back to one of a handful of common problems, listed here from most to least frequently encountered:

Worn or damaged wiring — The harness routing near the transfer case sees plenty of movement and exposure to road debris. Chafed insulation, broken strands inside the wire, or corrosion at the connector pins create open or high-resistance paths.
Poor ground connection — A weak ground at the sensor or indicator circuit prevents proper signal reference, which the module interprets as a hard fault.
Blown fuse — If the circuit loses power due to a failed fuse, the indicator goes dark and P1713 gets set.
Failed sensor or actuator — The component responsible for reporting or actuating neutral position can simply wear out, especially in high-mileage vehicles.
Control module driver fault — The module itself may have an internal problem with the circuit that drives the indicator, a less common but real possibility.

How to Diagnose P1713

Working through this code methodically keeps you from throwing parts at the problem:

Connect an OBD2 scanner, confirm P1713 is stored, and record the freeze frame data. This snapshot tells you the engine load, RPM, coolant temperature, and vehicle speed when the fault occurred — use those conditions to guide your road test.
Pull all other stored codes. Related trouble codes often point directly to the failing component, and many P0xxx codes have manufacturer TSBs with known fixes or software updates. Search your make and model on the manufacturer site or nhtsa.gov by VIN.
Visually inspect the wiring harness and connectors associated with the transfer case neutral indicator. Look for damaged insulation, bent or corroded pins, moisture intrusion, and loose fittings.
At the component connector, measure reference voltage, ground resistance, and signal continuity with a multimeter. Compare your readings to the specs in your service manual.
Perform a wiggle test on the harness while monitoring live data on the scanner. Any signal dropouts or interruptions point to broken wires inside the insulation.
Clear the code, complete a full drive cycle that reproduces the freeze-frame conditions, and verify P1713 does not return. If it comes back, you have narrowed the circuit and can target the repair precisely.

Repair Options and Costs

Before replacing expensive components, address the most common failure points:

Repair wiring or connectors: $80–$250
Replace faulty sensor or actuator: $150–$500
Control module repair or replacement: $300–$1,000

P1713 is one of those codes where the actual repair cost hinges almost entirely on which part failed. An independent shop typically charges $80 to $250 to fix damaged wiring or corroded connectors — a straightforward job if the damage is accessible. Replacing a failed neutral indicator sensor or actuator runs $150 to $500 depending on the vehicle and part price. If the problem traces to the control module itself, expect $300 to $1,000 for repair or replacement, including programming. Most shops will bill one to two hours of labor for diagnosis on top of parts costs. Getting the diagnosis right first keeps your total bill near the lower end of that range.

Can You Drive with P1713?

In most vehicles equipped with this circuit, P1713 does not render the car undriveable. You will likely notice the Check Engine lamp and possibly reduced performance or a disabled auxiliary function, but the vehicle should still move under its own power. Treat this as urgent, however, if you experience stalling, failure to start, or warnings affecting the brakes or steering — those symptoms demand immediate attention regardless of the trouble code.