A9b7 Peugeot [new]
producing 200 hp (and later 208 hp in the 30th Anniversary edition). Efficiency : Introduced the three-cylinder petrol engines and highly frugal diesels, with some variants emitting less than 100g/km of cap C cap O sub 2 The "B7" Connection: Peugeot 308 II (2013–2021)
Unplug the connector to the PSF1 and look for corrosion on the pins. Clean with electrical cleaner.
The BSI is usually located behind the glovebox or under the dashboard. A common fault on the Peugeot 307 is a clogged cabin air filter drain, leading to water dripping directly onto the BSI circuit board. Corroded pins on the CAN bus connector will generate permanent communication errors.
To track down the short circuit without randomly swapping expensive control modules, use a digital multimeter and an OBD2 scanner capable of reading PSA-specific manufacturer codes. Step 1: Visual Inspection of the Engine Fuse Box a9b7 peugeot
The ignition positive relay is embedded directly onto the printed circuit board (PCB) inside the unserviceable under-hood BSM engine fuse box. Over time, moisture intrusion can cause corrosion on the internal traces or fuse box pins, forcing a continuous bridge between constant 12V battery power and the ignition output circuit. 2. Wiring Harness Chafing and Short Circuits
Open the hood and find the fuse box. Pull out the main plugs and look closely at the pins. Look for green or white crust. Clean away any rust with electrical contact cleaner. 2. Inspect the Wiring Harness
The engine may turn over but fail to ignite, or it may not crank at all due to a lack of power to the starter relay or engine ECU. producing 200 hp (and later 208 hp in
The "A9" code covers a wide family of vehicles produced between 2012 and 2019. Peugeot, like many manufacturers, uses a system where the digit following the chassis code often denotes the body style. For instance, the Peugeot 2008 crossover, which shares its platform with the 208, carries the code "A94".
Peugeot uses multiple grounding points (earth points) behind the dashboard. The MC40 and MC60 ground points are known to corrode. A bad ground creates a floating voltage that confuses the BSI.
This code is part of the Peugeot and Citroën manufacturer-specific diagnostic list and is defined as: The BSI is usually located behind the glovebox
Every French Peugeot car has a computer brain. This brain watches the wires and parts to make sure they work safely. The code stands for a very exact problem:
Unfortunately, there are very few images and videos of the A9B7 Peugeot available online, due to the car's exclusive nature and Peugeot's efforts to keep it under wraps. However, rumors suggest that the company may release more information and visuals in the near future, which could fuel further interest and speculation about this enigmatic model.
The unit is easily recognized by its rectangular shape with curved corners, distinct from the larger monochrome dot-matrix displays found in lower trims. It displays data in color, often with an orange/amber or full-color palette depending on the software version.
If you have persistent issues after trying all the steps above, seek out a PSA specialist. But for the vast majority of owners, the information in this guide—from the BSI reset to the HVAC replacement—will banish the A9B7 code for good.
Another factor is the A9B7's innovative design and technology. The car's aerodynamic lines, gull-wing doors, and mid-mounted engine make it a standout in the automotive world. The A9B7 is a testament to Peugeot's commitment to innovation and experimentation, and it has inspired many of the company's future designs.