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[Solved] Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo

mruko 24987 18
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Why does a 2003 Peugeot 307 1.6 petrol not start and also lose power to the windows, blower, wipers, and lights, and what should I check first in the BSI/engine control system?

The car was ultimately fixed by replacing a defective crankshaft position sensor, so that sensor was the main cause of the no-start condition [#17301711] The symptoms fit the ECU not seeing engine rotation: the power relay activation was shown as inactive, and there was no injector pulse even though spark and other basic tests were OK [#17291284][#17291160] The injector and coil supply at fuses F2 and F15 was present only for about 4 seconds during fuel-pump priming, then disappeared during cranking, which pointed away from a simple fuse issue [#17291160][#17289083] Economy mode can switch off comfort consumers like the blower and windows, but it does not by itself explain the engine not starting [#17277206] PP/Diagbox did not report the failed sensor clearly, so a bad crankshaft sensor can still be the real fault even without an obvious fault code [#17301711][#17291160]
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  • #1 17258745
    mruko
    Level 12  
    Hello!
    I am asking for help in repairing the Peugeot 307 1.6 benz year 2003, the car went out and did not start anymore. The left window as it was open has remained so, the blow-in, windows, windscreen wipers, low beam and high beam lights do not work. I checked all the fuses are good, the only thing is the lack of voltage on F2 F1 marked in the figure.
    The fuel pump starts after turning the ignition switch, but there is no voltage on the coil even when the starter turns. Central locking works.
    My questions are as follows: Are the paths burned in the bsi and there is no voltage on the fuses and then maybe on the electronics of the bsi as seen in the attached drawing.
    Can I buy used bsi with the same numbers and can I change the memory, can I buy the whole plate with the green memory?
    Do you buy a set of keys, bsi and ecu and do they have to be the same numbers as the old ones or can they be different just to make the engine fit?
    In a few days I will have an interface with the Lexia program, which I should check at the beginning.
    I am a hobby electronics engineer and I have some time so I want to start this car. Thanks for the help.
    Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo

    My gods
    Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo
    Electronics board.
    Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo
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  • #2 17259348
    ziolek13
    Level 11  
    Hello. Recently I had a similar problem with my Peugeot. Bsi is blocked from here this car behavior. You can't do anything without the cable. I blocked the engine computer. The mechanic replaced one element that blocked the car from starting. Then he taught the bsi and the car still goes today. Now I'm waiting for lexia to do something on my own. Regards
  • #3 17259601
    mruko
    Level 12  
    What did the mechanic mention, it is not known?
    It may be blocked bsi, but on these fuses the diagram shows that the voltage should always be.
    I am still waiting for the cable.
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  • #4 17259631
    rs07
    Level 20  
    The figure shows that F1 and F 2 are powered by a F4 70 A fuse. Do you have voltage on F 9 and F 14?
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  • #5 17261440
    mruko
    Level 12  
    There is voltage on these fuses, so I suspect that there is a power outage, assuming that bsi is made as shown.
  • #6 17275643
    mruko
    Level 12  
    Today I connected Diagbox was a transient steering error "information about the speed of the vehicle. A short circuit to a plus or a break". After deleting, no calculator has errors. The car is in economy mode and does not start. At free time I need to check the spark on candles and injectors, through a diagbox, unless someone proposes something else.
  • #7 17276937
    kamiloskop
    Level 23  
    If you have Economy, you won't start it.

    Moderated By ociz:

    3.1.11. Do not send messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.

    "Economy mode" is just a weak battery.

  • #8 17277206
    Ireneo
    Level 42  
    Economy activates after a while and turns off the receivers such as blower, windows. An efficient car should start despite the inscription economy. Go in bsi, see in the parameters vin, keys, permission. Take off the eco clamp will disappear and the glass will be closed. But you won't start anyway.
  • #9 17285011
    mruko
    Level 12  
    Today I have connected the interface again. My attention was drawn to "key 1 and 2 not synchronized". I have two keys, one with remote control, the door normally closes and opens, but no key fires. ECU authorization - is. Vin reads, Economy mode is still on despite removing the clamp and doing a bsi reset. Below the screenshots maybe someone will tell you what to do next.

    Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo
    Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo
  • #10 17285307
    seat21
    Level 29  
    start-up parameters look ok, your attention applies to remote controls, search for power supply maybe bsm fell
  • #11 17285535
    mruko
    Level 12  
    Through the PP2000 I did a coil test, the voltage goes up, when the LED is connected, you can see how it blinks so it is keying, but with the injector test silence, you can't hear any.
    I have a question, what are the symptoms, how does immo work in Peugots?
  • #12 17288057
    mruko
    Level 12  
    I unscrewed the candles making the coil test through PP you can see that the spark is there, but with the injector test silence, the injectors checked all functional, checked cables.
    The controller reads all temperatures, other tests are also positive, the fan is not at low speed, but it's probably the resistor's fault.
    I think the engine driver fell, or if I exchange it for another pairing you will need a PIN CODE. I am asking because I do not normally repair cars, the more I have 2 PSAs at home, I help Peugeot to fix a colleague.

    Below screen that nothing is blocking

    Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo
  • #13 17288136
    seat21
    Level 29  
    maybe first check the power supply to the injectors if there is still more and I bet on bsm
  • #14 17289083
    Pawel wawa
    VIP Meritorious for electroda.pl
    Do not mix, check the power supply with fuse F15. If it is, there should be power for the others. Additional power supply for fuses can be given for testing, the car should start. Then you need to find the place of beam damage.
  • #15 17289231
    piotrekwoj1
    Level 43  
    What calculators can PP detect for you?
  • #16 17291160
    mruko
    Level 12  
    BSI, multi-functional display, instrument panel, airbag, relay module under the steering wheel, engine control calculator, ABS and ESP calculator,
    Power steering.
    Today, according to the advice, I focused on bsm, I found that the voltage on the coil and injectors (fuses F2 and F15) is only for 4s as far as the fuel pump is concerned, then even when turning the starter there is no voltage.
    Although PP did not show an error, I checked the shaft position sensor according to Autodata should have 460?, unfortunately it has a break, can this be the main reason or one of many?
    If the sensor is bad, why did PP not report or just report a short circuit?
    I ordered the sensor on Monday I will put it on.

    Added after 12 [minutes]:

    Colleagues and what means "power relay activation - inactive"

    Peugeot 307 1.6 benz - does not start, windows, airflow, wipers, spray do not wo
  • #17 17291284
    Pawel wawa
    VIP Meritorious for electroda.pl
    You see, you thought and will repair the car.
    mruko wrote:
    activation of the power relay - inactive
    Exactly, that the relay is not activated, it is possible that the car does not see the engine rotation. The rest probably efficient since you have
    mruko wrote:
    coil and injector voltage (fuses F2 and F15) is only for 4s as far as the fuel pump is concerned
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  • #18 17301711
    mruko
    Level 12  
    Thanks to all for help, damaged shaft position sensor, the car works. It is a pity that PP does not show or diagnose such an important thing.
  • #19 17301715
    mruko
    Level 12  
    Thanks to all for help, damaged shaft position sensor, the car works. It is a pity that PP does not show or diagnose such an important thing.

    Added after 1 [minutes]:

    Shaft position sensor defective

Topic summary

✨ The discussion revolves around troubleshooting a 2003 Peugeot 307 1.6 benz that fails to start, with issues including non-functional windows, wipers, and lights. The user suspects a problem with the BSI (Built-in Systems Interface) and the absence of voltage on specific fuses (F1 and F2). Various responses suggest checking the power supply to fuses, the BSI's condition, and the synchronization of keys. A significant finding was a faulty shaft position sensor, which was ultimately identified as the cause of the starting issue. The user successfully resolved the problem by replacing the sensor, although it was noted that the diagnostic tool (PP) did not indicate this fault.
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FAQ

TL;DR: On a 2003 307 1.6, a crank sensor open‑circuit (spec ≈460 Ω) and "power relay activation – inactive" point to CKP diagnostics. Check CKP, injector power (F2/F15), and BSM feed before suspecting BSI/ECU. [Elektroda, mruko, post #17291160]

Why it matters: This FAQ helps Peugeot 307 1.6 owners and DIYers fix a no‑start with dead accessories by prioritizing fast, proven checks.

Quick Facts

My Peugeot 307 1.6 cranks and the pump primes, but it won’t start—what should I check first?

Verify the crankshaft position sensor. Measure CKP resistance; spec is ≈460 Ω, and an open circuit indicates failure. In Diagbox/PP2000, watch Engine ECU status for “power relay activation” while cranking. If injectors lose feed after a short prime, suspect no RPM input. Check CKP before swapping BSI or ECU. [Elektroda, mruko, post #17291160]

What does “power relay activation – inactive” mean in Diagbox?

It means the ECU has not latched the engine power relay. The ECU likely sees no engine rotation. “The relay is not activated.” Confirm RPM in live data and track why the relay stays off. A dead CKP can cause this behavior. [Elektroda, Pawel wawa, post #17291284]

How do I test the crankshaft position sensor (CKP) on a 307 1.6?

Use a multimeter and Diagbox.
  1. Unplug the CKP and measure resistance; typical spec is ≈460 Ω.
  2. If the sensor reads open circuit, replace it.
  3. Observe F2/F15 feed during cranking; ~4 seconds prime without sustain indicates a missing RPM signal. [Elektroda, mruko, post #17291160]

Do Economy Mode warnings stop the car from starting?

No. Economy Mode disables accessories like blower and windows after a delay. An efficient car should still start. “An efficient car should start despite the inscription economy.” Check BSI parameters for VIN, keys, and authorization, and charge the battery to clear Economy. [Elektroda, Ireneo, post #17277206]

Which fuse feeds the injectors and coils on the 307 1.6?

Check fuse F15 for injector supply. If F15 has power, other dependent circuits should also feed. You can add temporary power to F15 for testing; the engine may start. Then locate wiring or feed damage if present. [Elektroda, Pawel wawa, post #17289083]

Which upstream fuse powers F1 and F2?

F1 and F2 receive power through the 70 A F4 fuse. Also verify voltage at F9 and F14. These checks validate upstream supply to the engine circuits before deeper diagnostics. [Elektroda, rs07, post #17259631]

PP2000 shows “key 1 and 2 not synchronized.” Can that block starting?

Remote synchronization status is separate from immobilizer authorization. “Start-up parameters look ok.” Focus on power supply and engine inputs instead of remotes. You can relearn remote controls after the engine issue is resolved. [Elektroda, seat21, post #17285307]

Coil test sparks, but injector test is silent—what does that suggest?

Ignition can fire on command, yet injectors are not actuating. Focus on injector power, F15 supply, and the CKP signal. Use Diagbox injector actuation to confirm lack of response. Address feed control and RPM input before suspecting the ECU. [Elektroda, mruko, post #17285535]

How long should injector/coil power stay live during cranking?

With ignition on, the ECU provides a short prime of about 4 seconds. Without a valid RPM signal, power drops, even during cranking. Restoring a CKP signal re-enables sustained feed and injector operation. [Elektroda, mruko, post #17291160]

Why were there no fault codes for the failed sensor?

Some CKP failures do not set a DTC. “PP does not show or diagnose such an important thing.” Use resistance checks and relay status to guide diagnosis when codes are absent. After replacement, the engine started normally. [Elektroda, mruko, post #17301711]

What modules should Diagbox/PP2000 detect during a no-start check?

Expect BSI, multi-function display, instrument panel, airbag, steering column module, engine ECU, ABS/ESP, and power steering. This case showed eight calculators with no ECU faults reported. Module presence confirms network health before deeper engine checks. [Elektroda, mruko, post #17291160]

Should I replace BSI/ECU or buy a matched key/BSI/ECU set?

Avoid parts swapping before verification. In BSI, view VIN, key status, and ECU authorization. This case showed “ECU authorization: present” despite key sync messages, so attention moved to power and sensors. Diagnose before considering module replacement. [Elektroda, mruko, post #17285011]

How can I quickly confirm a wiring or supply issue to injectors?

Backfeed injector fuse F15 with a fused jumper for a brief test. If the engine starts, trace and repair the harness or feed fault. Remove the jumper immediately after testing to avoid damage. “Additional power supply for fuses can be given for testing.” [Elektroda, Pawel wawa, post #17289083]

What ultimately fixed the forum case?

Replacing the crankshaft position sensor solved the no-start. After replacement, “the car works.” No BSI, BSM, or ECU swap was required for the fix. [Elektroda, mruko, post #17301711]
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