FAQ
TL;DR: Factory retrofit of Peugeot 208 parking sensors costs about PLN 120 (~€26) in used parts [Elektroda, glapsson, post #17511175] “Coding is the only hard part” [Elektroda, glapsson, post #17508655] Most 2012-2015 cars accept offline BSI coding if pins 1, 3 (CAN) and 60 (+12 V) are added. Why it matters: the right loom, module and three wires let you gain OEM-grade parking aid without dealer prices.
Quick Facts
• Parts shopping list: 4 sensors (~PLN 50), loom (~PLN 50), ECU (~PLN 20) [Elektroda, glapsson, post #17511175]
• BSI plug: Brown 60-way – pin 1 CAN-H, pin 3 CAN-L, pin 60 fused +12 V [Elektroda, glapsson, post #18931064]
• Compatible years: 2012-2019; facelift only changes bumper holes, not wiring [Elektroda, glapsson, post #17508655]
• Coding tools: Diagbox ≥7.XX or Lexia; online access needed on some post-2015 cars [Elektroda, glapsson, post #18945039]
• Typical DIY time: 3 h hardware + 15 min telecoding [“Peugeot ServiceBox”]
Which parking ECU part number should I buy?
Any Bosch 0263 004 465 or Valeo 9666723180 that shows 8 sensors in the pictogram works; match software 9.00 with PSA sensors 9675202477 for rear-only setups [Elektroda, Mihó, #20477217].
Can I install factory sensors if my 2012 208 has no loom or plug?
Yes. Run a 3-wire harness from the rear module to BSI brown plug: pins 1, 3 (CAN) and 60 (+12 V). Ground to rear body bolt. It works "100 %" when wired this way [Elektroda, glapsson, post #18931064]
What if Diagbox shows no parking-aid option?
Your BSI flash may be locked for online coding. Offline cars built before week 48/2015 usually allow manual telecoding; later units need dealer or EEPROM edit [Elektroda, glapsson, post #18945039]
How do I check whether telecoding will pass before buying hardware?
- Plug in Diagbox/Lexia and enter BSI → Configuration. 2. Attempt to set Rear PDC to "Present" without module connected. 3. If the command stores, your BSI is open for coding [Elektroda, glapsson, post #17509744]
I get errors B1223/24/27/28 after retrofit. Cause?
Those codes mean all four sensors report open circuit. Confirm you used PSA sensors 9675202477; mix-year sensors or swapped pins 2-3 in the 6-way plug cause this failure [Elektroda, Mihó, #20469485].
My dashboard becomes a CAN ‘Christmas tree’ when I plug the module—why?
A faulty or wrong-year module can short CAN lines, dropping the whole network [Elektroda, dominik9491, post #20163740] Replace ECU or flash correct software version.
Where is the module located on a 2014 208?
Behind the left rear trim, just above the wheel arch. If you cannot see it, the car wasn’t factory-equipped [Elektroda, tomaszbolesta85, post #20209336]
Can Lexia from a Citroën dealer program my Peugeot?
Yes. Lexia/Diagbox hardware is multi-brand; just select Peugeot VIN and the tool communicates normally [Elektroda, neko1985, post #20719553]
Is drilling the bumper mandatory for front sensors?
No. You may swap to an OEM bumper skin with pre-moulded holes, but careful drilling with 18 mm stepped bit and PSA centring rings works too [Elektroda, melas, post #19841596]
Why do I get no sound or visual alert after adding front PDC on 508?
The 508 needs a 10-sensor ECU plus SMEG/i-Cockpit activation. Without enabling "front present" in both BSI and head-unit, only the rear channel beeps [Peugeot ServiceBox].
Can I reuse pins for the brown 60-way BSI connector?
Yes. Salvage micro-timer 1.5 mm pins from any PSA interior loom or order TE 6440-021 connectors; they crimp with standard open-barrel tool [Elektroda, marekkoczta, post #18951772]
Edge case: what if BSI shows error B1003?
B1003 indicates parking ECU internal fault; sensors stay silent and coding refuses. Replace or reflash ECU before further diagnosis [Elektroda, glapsson, post #20376340]
3-step quick install summary?
- Mount sensors and loom, route to left rear. 2. Add three wires to BSI brown plug (pins 1, 3, 60) and connect ground. 3. Telecode BSI → PDC: Present; SMEG → Visual aid: Yes, then test reverse.
