peugeot 308 fuse box guide

Location of the Peugeot 308 Mk2 Fuse Box

The 308 Mk2’s main fuse box sits beneath the driver’s seat‚ inside the cabin. Open the lower dash panel‚ slide the cover forward‚ and the rectangular box with a removable lid is visible. It houses the engine‑compartment fuses (F19‚ F20‚ F21) and other circuits. The box is accessed by removing the plastic cover.!

Accessing the Engine Compartment Fuse Box

To reach the engine‑compartment fuse box on a Peugeot 308 Mk2‚ start by opening the hood and locating the small‚ rectangular panel on the driver’s side of the engine bay‚ close to the battery. The panel is usually marked with a fuse icon or the word “FUSE.” Use a flathead screwdriver or your fingernail to pry the cover off. Once removed‚ you’ll see a series of fuses labeled F19‚ F20‚ F21‚ etc. The box is powered by the vehicle’s 12‑volt system‚ so be sure the ignition is off before touching any components. If the cover is stuck‚ a gentle tap with a rubber mallet can loosen it. Some models have a secondary fuse box under the passenger seat; however‚ the engine‑compartment unit contains the main power distribution for the front‑wheel‑drive system. Keep the cover in a safe place to avoid losing it. After inspection or replacement‚ replace the cover firmly‚ ensuring it clicks into place to maintain proper sealing against dust and moisture. This simple procedure allows quick access to the fuses that control critical functions such as the wiper motor‚ screenwash pumps‚ and headlights. Following these steps ensures you can safely diagnose and resolve electrical issues without compromising the vehicle’s safety systems.

Interior Fuse Box Overview

The interior fuse box of the Peugeot 308 Mk2 is located beneath the driver’s seat‚ inside the cabin. It is accessed by removing the lower dash panel cover‚ which slides forward to reveal a rectangular box with a removable lid. Inside‚ a neatly arranged grid of fuses powers the vehicle’s interior electronics‚ including the dashboard display‚ climate control‚ power windows‚ and infotainment system. Each fuse is clearly labeled with a code (e.g.‚ F1‚ F2‚ F3) and an ampere rating that matches the circuit’s current draw. The box also houses the main fuse for the seat‑adjustment motors and the auxiliary power outlets. When inspecting the interior fuse box‚ keep the vehicle’s ignition off and disconnect the battery to avoid accidental short circuits. A simple inspection can quickly identify blown fuses that may be causing issues such as non‑functional lights or a malfunctioning radio. Replacement is straightforward: use a fuse puller or a pair of needle‑nose pliers to remove the faulty fuse‚ then insert a new fuse of the same rating. After replacement‚ re‑install the lid‚ ensuring it clicks securely to maintain the sealed environment of the cabin. Regular checks of the interior fuse box help maintain the reliability of the 308’s electronic systems and prevent costly repairs down the line.

For added safety‚ wear insulated gloves and use a multimeter to verify that the circuit is de‑energized before touching any contacts. Keep a spare set of fuses handy‚ as the 308’s interior circuits often share a common fuse for multiple functions. If a fuse repeatedly blows‚ it may indicate a deeper electrical fault that requires professional diagnosis. Documenting the fuse codes and their corresponding functions can save time during future maintenance and ensure that replacements match the original specifications exactly.

When replacing fuses‚ always match the exact ampere rating; using a higher rating can damage components‚ while a lower rating may cause nuisance blowing. Keep the fuse box lid closed to protect the fuses from dust and moisture‚ and periodically clean the contacts with a dry cloth. A well‑maintained fuse box contributes to the overall electrical reliability of the 308‚ ensuring that all interior features operate smoothly throughout the vehicle’s lifespan.

Fuse Box Diagram and Labeling

The diagram shows a grid of labeled slots (F1–F30) with ampere ratings. Each slot’s label matches the circuit it protects‚ such as F19 (30A) for the front wiper motor and F20 (15A) for screenwash pumps. Refer to the manual for exact placement. The layout is color‑coded for quick identification. Check manual

Visual Reference of Fuse Box Layout

Below is a concise visual guide to the Peugeot 308 Mk2 fuse box arrangement. The diagram is divided into two main sections: the engine‑compartment fuses and the interior circuit fuses. Each fuse slot is numbered (F1–F30) and labeled with its amperage rating. The front panel of the box shows a grid of rectangular slots with a small white key on the left side for quick identification. The key indicates the amperage: 15 A‚ 20 A‚ 30 A‚ and 40 A. The top row contains the high‑current fuses for the engine control unit‚ wiper motors‚ and headlights‚ while the lower rows hold the lower‑current fuses for interior lights‚ infotainment‚ and climate control. A small icon next to each slot denotes the circuit type: a wiper icon for F19‚ a water droplet for F20‚ and a light bulb for F21. The diagram also marks the location of the main disconnect switch‚ which is located on the left side of the box and can be used to cut power to the entire system. When replacing a fuse‚ always match the amperage rating and the circuit symbol to ensure correct operation and avoid damage. The diagram is printed on the back of the fuse box cover for easy reference while working. The layout is color‑coded: red for high‑current circuits‚ blue for medium‚ and green for low. The diagram includes a small legend that explains the meaning of each icon and the significance of the numbering system. The fuse box cover also has a small notch that indicates the orientation of the cover when it is closed‚ ensuring that the user can re‑install it correctly without damaging the seals. Finally‚ a quick‑reference table at the bottom of the diagram lists the most common fuses‚ their amperage‚ and the typical components they protect‚ making it easier for technicians and owners alike to identify and replace faulty fuses efficiently.

Key Symbols and Ampere Ratings

In the Peugeot 308 Mk2 fuse box‚ each slot is marked with a distinct symbol that identifies the circuit it protects‚ and a numeric value that indicates the fuse’s amperage rating. The most common symbols are:

• Wiper icon – represents the front wiper motor and is paired with a 30 A fuse (F19).
• Water droplet icon – denotes the front and rear washer pumps and uses a 15 A fuse (F20).
• Headlight icon – indicates the headlamp circuit and is protected by a 20 A fuse (F21).
• Light bulb icon – marks interior lighting circuits and typically uses 15 A fuses.
• Power plug icon – signals high‑current circuits such as the engine control unit and uses 30 A or 40 A fuses.

The amperage ratings are critical for maintaining electrical safety and preventing overheating. A 15 A fuse is suitable for low‑current accessories like seat heaters or infotainment units‚ 20 A fuses are used for moderate loads such as cabin lights‚ and 30 A fuses handle heavier components like the wiper motor or headlamps. When replacing a fuse‚ match both the symbol and the amperage exactly; installing a fuse with a lower rating can cause the circuit to trip‚ while a higher rating may allow excess current to flow‚ potentially damaging the wiring or components. The fuse box’s back panel also includes a small legend that explains each symbol and its corresponding amperage‚ making it easier for technicians and owners to identify the correct fuse for any given circuit.

The fuse box also features a color‑coded key on the left side of the panel; Red indicates 30 A‚ blue indicates 20 A‚ green indicates 15 A‚ and yellow indicates 40 A. This key helps quickly identify the correct fuse without consulting the manual. Additionally‚ the back of the fuse box includes a small diagram that shows the location of each fuse slot relative to the vehicle’s electrical architecture. This diagram is particularly useful when diagnosing complex electrical issues‚ as it allows the technician to trace the path of current from the battery to the specific component. Finally‚ the fuse box cover has a small notch that aligns with the key when the cover is closed‚ ensuring that the seals remain intact and preventing moisture ingress.

For advanced troubleshooting‚ the manufacturer provides a service manual that lists the exact amperage for each fuse and the maximum current draw for each circuit. This information is essential when upgrading accessories or installing aftermarket components‚ as it ensures that the new load does not exceed the fuse rating. Always consult the official documentation before making changes to the electrical system.

Standard Fuse Ratings and Functions

The 308 Mk2 uses standard fuse ratings: 30 A for the front wiper motor (F19)‚ 15 A for washer pumps (F20)‚ and 20 A for headlights (F21). These fuses protect circuits from overload‚ ensuring safety and preventing electrical damage. Each fuse rating matches the component’s current draw‚ ensuring safe operation. 20

30A Fuses and Their Applications

In the Peugeot 308 Mk2‚ the 30‑ampere fuse (labelled F19) supplies power to the front wiper motor. This high‑current circuit is essential for reliable wiper operation during heavy rain‚ fog‚ or snow. The 30‑A rating matches the motor’s peak draw‚ protecting the wiring and the motor from overload. When the fuse blows‚ the wipers stop‚ providing a clear indicator that the fuse needs inspection. Replacing the fuse is simple: open the fuse box cover‚ pull the 30‑A fuse out with a fuse puller‚ and insert a new 30‑A fuse of the same type‚ usually a standard blade fuse. Always verify the amperage rating before insertion; using a fuse with a lower rating will cause the new fuse to blow immediately‚ while a higher rating may not offer adequate protection. It is advisable to inspect the wiper motor and wiring for signs of damage or corrosion‚ as these can cause repeated fuse failures. Proper maintenance and timely replacement of the 30‑A fuse help keep the wipers functioning safely and efficiently‚ especially in adverse weather conditions. The 30‑A fuse also safeguards the wiring harness from overheating‚ ensuring long‑term reliability of the front wiper system. When troubleshooting‚ always check the fuse first; if it is intact‚ inspect the motor‚ switch‚ and related relays. A faulty relay can also trigger a fuse blow‚ so replace it if necessary. Additionally‚ inspect the fuse holder for corrosion or loose contacts‚ as these can cause intermittent failures. Use a quality fuse puller to avoid damaging the fuse slot. After replacement‚ test the wipers to confirm proper operation. If the wipers still fail‚ consider checking the wiper motor’s electrical resistance with a multimeter; a high resistance indicates a faulty motor. Keep it tidy. Now It saves time! OK

15A Fuses and Their Applications

On the Peugeot 308 Mk2‚ the 15‑ampere fuses (labelled F20) are dedicated to the front and rear windshield washer pumps. These pumps draw current‚ making a 15‑A fuse the protection level. When the pump fails or the wiring is shorted‚ the fuse will blow‚ cutting power to the pump and preventing damage to the vehicle’s electrical system. The 15‑A rating matches the pump’s maximum current draw‚ ensuring reliable operation while providing a safety margin against spikes.

Replacing a blown 15‑A fuse is straightforward: open the engine‑compartment fuse box‚ locate the F20 slot‚ remove the old fuse with a fuse puller‚ and insert a new 15‑A blade fuse of the same type. Always verify that the new fuse’s amperage matches the rating; using a fuse with a lower rating will cause it to blow‚ while a higher rating may not protect the pump wiring. After replacement‚ test the washer system by activating the pump from the dashboard; the spray should flow smoothly. If the pump still does not work‚ inspect the pump’s wiring harness for corrosion‚ loose connections‚ or damaged insulation‚ and check the pump’s internal components for continuity. OK

It is also advisable to inspect the fuse holder for corrosion or loose contacts‚ as these can cause intermittent failures. When troubleshooting‚ start with the fuse‚ then move to the pump relay‚ and finally the pump itself. Proper maintenance of the 15‑A fuses and associated components helps keep the windshield washer system operational‚ especially in wet or snowy conditions where visibility is critical.

20A Fuses and Their Applications

The Peugeot 308 Mk2 employs 20‑ampere fuses (designated F21) primarily for the headlamp circuits‚ including the main headlight and daytime running lights. These fuses safeguard the high‑current LED or halogen modules that draw up to 18 A during operation. A 20‑A fuse provides a small safety margin‚ ensuring that the lamp assembly receives sufficient current. When a headlamp fails or a short occurs‚ the fuse will blow‚ cutting power to the lamp and preventing damage to the vehicle’s electrical architecture.

Replacing a blown 20‑A fuse is simple: open the engine‑compartment fuse box‚ locate the F21 slot‚ remove the old fuse with a fuse puller‚ and insert a new 20‑A blade fuse of the same type. Verify that the new fuse’s amperage matches the rating; using a lower rating will cause it to blow‚ while a higher rating may not protect the wiring. After replacement‚ test the headlamps by turning the ignition on and ensuring that the lights illuminate. If the lamps still do not work‚ inspect the headlamp relay‚ the wiring harness for corrosion or loose contacts‚ and the lamp socket for proper connection.

Routine checks of the 20‑A fuses and their associated circuits are essential‚ in climates‚ where headlights are used for night driving or in adverse weather. Regular inspection helps detect early signs of wear‚ such as frayed wires or corroded terminals‚ and allows for timely replacement before a failure occurs. Maintaining the integrity of the 20‑A fuse system ensures reliable illumination and contributes to overall vehicle safety.

Common Fuse-Related Issues in the 308

Peugeot 308 Mk2 owners often face fuse‑related problems that affect key systems. The 30‑amp F19 fuse protects the front wiper motor and can blow if the motor stalls. A blown F19 leaves the driver without a working wiper‚ compromising safety. The 15‑amp F20 guards front and rear screenwash pumps; a short will blow it. Blown F20 results in loss of spray and potential pump damage. The 20‑amp F21 covers the headlamp circuit and can fail with relay issues. A blown F21 leaves the vehicle dark at night‚ a serious hazard. Sometimes fuses do not blow even when a fault exists‚ indicating wiring problems. Phantom fuses appear intact but are partially damaged‚ causing intermittent failures. Regular inspection and cleaning of the fuse box prevent premature fuse failure. When a fuse blows‚ identify the root cause before replacement. Repeated failures can damage the electrical system if the fault is ignored. The fuse box is under the driver’s seat; remove the lower dash panel to access it. Ensure the cover is secured. Use OEM or equivalent fuses that match the manufacturer’s specified amperage. Aftermarket fuses with incorrect ratings can overheat and pose fire risks. Proper fuse maintenance ensures reliable operation of wipers‚ pumps‚ and lights. Neglecting fuse box care may lead to costly repairs and safety hazards. Regular checks keep the 308 Mk2’s electrical system safe and functional. Check for corrosion!!!! Stay safe.

Follow these steps to safely replace a blown fuse in a Peugeot 308 Mk2. Each step ensures no damage to the electrical system and protects you from electrical shock.

The fuse box is located beneath the driver’s seat‚ accessed by removing the lower dash panel. The box contains several fuses labeled with circuit names and amperage ratings.

1. Disconnect the battery. Remove the negative (-) terminal clamp to cut power.
2. Open the fuse box. Lift the plastic cover to expose the fuses.
3. Locate the blown fuse. Use the diagram or manual to find the correct fuse (e.g.‚ F19‚ F20‚ F21). A blown fuse is black or broken.
4. Remove the fuse. Pull it straight out with a fuse puller or screwdriver.
5. Insert the new fuse. Match the amperage (30A‚ 15A‚ 20A) and push it in until it clicks.
6. Reconnect the battery. Tighten the clamp and close the hood.
7. Test the circuit. Start the engine and verify the component works.
8. Secure the cover. Replace the cover and panel.

If the new fuse blows again‚ check wiring for shorts or replace damaged parts.

Keep spare fuses labeled with rating in glove compartment;

Fuses do not reset now; replace a fuse before power returns!

Frequent fuse blowouts may signal a deeper issue. Seek professional diagnosis to avoid damage.

After replacement‚ test drive to confirm all systems. If warning lights remain‚ double‑check fuse placement and wiring.!

Safety Precautions When Working with Fuse Boxes

Always disconnect the battery before touching a fuse box. Use insulated gloves‚ non‑conductive tools‚ and keep the area dry. Follow the vehicle’s fuse diagram to match amperage ratings and avoid overloading circuits.

• Disconnect battery. Remove the negative terminal first.
• Wear gloves. Prevent shocks from accidental shorts.
• Use proper tools. Fuse puller or non‑conductive screwdriver only.
• Inspect wiring. Look for frayed or exposed conductors.
• Match rating. Install the correct amp fuse per diagram.
• Do not force. Pull gently; check for holder damage.
• Keep dry. Moisture can conduct electricity;
• Secure cover. Prevent debris and moisture entry.
• Test system. After reconnection‚ start engine and check lights.
• Seek help. If problems persist‚ consult a professional.

Following these precautions protects you and preserves the Peugeot 308’s electrical integrity.

When traveling‚ carry a small fuse kit with a range of 15A‚ 20A‚ and 30A fuses‚ as well as a fuse puller. This allows you to address blown fuses on the go without a workshop. Additionally‚ keep a multimeter handy to check for voltage and continuity when diagnosing persistent electrical problems. By staying prepared‚ you reduce downtime and maintain the reliability of your vehicle’s electrical system. This kit serves as a tool now.

Troubleshooting Guide for Non-Working Electrical Components

When an accessory fails‚ start by confirming power at the fuse. Remove the relevant fuse from the engine compartment box (F19‚ F20‚ F21) and check continuity with a multimeter. If the fuse is intact‚ inspect the wiring harness for cuts‚ corrosion‚ or loose connectors. A damaged insulation or a broken pin can interrupt the circuit.

Next‚ verify the component itself. For example‚ a non‑operational front wiper motor (F19) should be tested with a 12 V supply; if it spins‚ the issue lies upstream. If it does not‚ the motor may be burnt or its internal relay may have failed. Replace or repair accordingly.

Check the relay or switch that controls the circuit. A faulty relay can appear as a blown fuse. Swap the relay with a known good unit of the same type and gauge. If the component works‚ the relay was defective.

Inspect the battery and alternator output. Low voltage can cause intermittent operation. Measure the battery voltage while the engine is off (should be ~12.6 V) and under load (should stay above 11.5 V). If readings are low‚ address charging issues first.

Finally‚ review the owner’s manual for any special reset procedures or software updates that may affect electronic modules. In some models‚ a reset of the body control module is required after a fuse replacement. Use a diagnostic scanner to clear fault codes and confirm the component’s status.

Before re‑installing the fuse‚ ensure the holder is clean and free of debris. A dirty contact can cause arcing and a subsequent fuse blow. Use a small brush or compressed air. After reinstalling‚ test the component again. If the problem persists‚ consider a professional diagnostic.

When dealing with electronic modules‚ remember that some systems are protected by a fuse and a separate module fuse. The module may be reset by disconnecting the battery for 10 minutes. This can clear transient faults that prevent a component from functioning;

In addition‚ check for any aftermarket accessories that may have been installed. These can introduce extra loads or create conflicts. Remove or isolate them to see if the original component resumes operation.

When a dashboard light remains off‚ inspect the corresponding fuse and the bulb. A burnt bulb can mimic a blown fuse. Replace the bulb and verify the fuse again. If the bulb works but the light still fails‚ the issue may be with the wiring or the control module.

For climate control issues‚ examine the blower motor fuse and the temperature sensor. A faulty sensor can cause the system to shut down. Use a scan tool to read sensor data and compare with manufacturer specifications.

Remember to always refer to the vehicle’s specific fuse diagram. The 308 Mk2 uses a 30 A fuse for the front wiper motor (F19)‚ a 15 A fuse for the front and rear screenwash pumps (F20)‚ and a 20 A fuse for the headlights (F21). Misidentifying these can lead to incorrect replacements and further electrical problems.

Preventive Maintenance Tips for Fuse Boxes

Location of the Peugeot 308 Mk2 fuse box can pre‑empt electrical failures. Begin by opening the driver’s‑seat panel and visually checking each fuse holder for corrosion‚ loose screws‚ or signs of overheating. Clean the contacts with a soft brush or a cotton swab dipped in isopropyl alcohol‚ then dry thoroughly before re‑installing. Replace any fuse that shows a broken filament or discoloration; even a partially blown fuse can degrade performance over time.

Regular inspection of the Peugeot 308 Mk2 fuse box can pre‑empt costly electrical failures. Open the driver’s‑seat panel and check each fuse holder for corrosion or overheating. Clean contacts with a soft brush and isopropyl alcohol‚ dry‚ then reinstall. Replace any fuse with a broken filament or discoloration‚ as a blown fuse can degrade performance OK. Check the fuse holder for any signs of burn marks. Now

Keep the fuse box lid firmly secured. A loose cover lets dust and moisture to enter‚ accelerating corrosion. Use dielectric grease on mounting screws to improve the seal. Periodically test continuity of the wiring harnesses with a multimeter; a loss indicates a damaged wire that may need repair. This helps prevent electrical failures

When replacing fuses‚ match the exact amperage rating in the vehicle’s manual. A rating can overload the circuit; a lower rating may cause the fuse to blow. Store spare fuses in a cool‚ dry place to prevent aging. This ensures reliable operation time

For models with a rear‑seat fuse panel‚ clean and inspect the same way. Pay attention to the 15 A and 20 A fuses that control rear lights and infotainment‚ as they are susceptible to wear from frequent use. Regular extend life and reduce repairs

Finally‚ schedule an annual check during routine service appointments. A technician can verify that all fuses are correctly rated and that the electrical system is free of faults. Document any changes in a maintenance log to track trends and anticipate future replacements. Maintain change log!