P2591 — Cruise Control Front Distance Range Sensor Left
OBD2 code P2591 flags a problem with the sensor and actuator circuits (cruise control front distance range sensor left). The car is usually drivable while you plan the repair. Common culprits: poor ground connection, faulty sensor or actuator of the affected circuit, corroded, loose or damaged connector.
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 P2591 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 cruise control front distance range sensor left 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 P2591 does not return.
Approximate repair cost
Repair cost depends on which component actually failed. Typical scenarios for P2591 (parts and labor, USD, independent shop rates): Replace the faulty sensor or actuator: $150–$500; Repair wiring or connectors: $80–$250; Control module repair: $300–$1,000. Overall, fixing P2591 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
Is it safe to drive with P2591?
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 are the symptoms of P2591?
Drivers most often notice: possible limp mode depending on the affected component, Check Engine Light on, the affected system operates intermittently or not at all, increased fuel consumption in some cases.
How much does it cost to fix P2591?
Replace the faulty sensor or actuator — $150–$500; Repair wiring or connectors — $80–$250; Control module repair — $300–$1,000. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.
How do I diagnose P2591 myself?
Start with a scan: confirm P2591, 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 P2591 mean?
OBD2 code P2591 flags a problem with the sensor and actuator circuits (cruise control front distance range sensor left). The car is usually drivable while you plan the repair. Common culprits: poor ground connection, faulty sensor or actuator of the affected circuit, corroded, loose or damaged connector.
What does P2591 mean?
Seeing P2591 on your scanner? The control unit has caught the sensor and actuator circuits operating outside its calibrated window. The formal description is “Cruise Control Front Distance Range Sensor Left”, and the code is grouped under powertrain (engine/transmission) faults.
The module monitors this system continuously while driving. When readings fall outside the expected range for a defined number of drive cycles, it stores P2591 and switches on the warning light. Freeze frame data saved with the code shows the exact conditions — rpm, load, temperature, speed — at the moment the fault was detected, which is the best starting point for diagnosis.
Common symptoms of P2591
- possible limp mode depending on the affected component
- Check Engine Light on
- the affected system operates intermittently or not at all
- increased fuel consumption in some cases
What causes P2591?
- poor ground connection
- open or shorted wiring in the circuit
- corroded, loose or damaged connector
- blown fuse feeding the circuit
- control module driver fault
- faulty sensor or actuator of the affected circuit
How to diagnose P2591
- Connect an OBD2 scanner, confirm P2591 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
- 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.
- Visually inspect the wiring harness and connectors related to the cruise control front distance range sensor left for damage, corrosion, chafing or poor contact.
- Measure reference voltage, ground and signal continuity at the component connector.
- Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
- Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2591 does not return.
How to fix P2591
Start with the cheapest and most common causes before replacing expensive parts:
- Replace the faulty sensor or actuator — $150–$500
- Repair wiring or connectors — $80–$250
- Control module repair — $300–$1,000
How much does it cost to fix P2591?
Repair cost depends on which component actually failed. Typical scenarios for P2591 (parts and labor, USD, independent shop rates):
- Replace the faulty sensor or actuator: $150–$500
- Repair wiring or connectors: $80–$250
- Control module repair: $300–$1,000
Overall, fixing P2591 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.
Can you drive with P2591?
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.