C4 1.6 keeps blowing starter fuse
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  1. #1
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    Default C4 1.6 keeps blowing starter fuse

    Hello all

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    as the title states, mum's c4 is going through the starter fuse f8 every so often. Have tried increasing fuse rating from 20amps to 25 as suggested on some sites but no joy. What's the fix for this problem? A new starter? If so, are they hard to replace on a DIY basis? Also where would be a good place to buy one from? Your advice would be most appreciated as always.

    cheers
    Kaza

  2. #2
    Contented Peugeot Driver addo's Avatar
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    Try an external relay. I can't look it up for a few minutes but you can probably trigger it with one of the incoming wires from the cabin harness.

  3. #3
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    If you have to get at the starter motor (from the bottom) here is a guide-
    (pardon my French)
    C4 1.6 keeps blowing starter fuse-c4-starter.jpg

  4. #4
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    Unfortunately if it's the later PSF1 (without the slide tab clips) then it's an internally driven relay. You'd cut wire 100 (on the two pin black plug) and use the outgoing side to switch a diode protected 40A relay - about $25 in parts and 30 minutes of skilled time.

    If this doesn't resolve it you will have to replace PSF1 and this is $300-ish from memory.

  5. #5
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    Please excuse my ignorance but what is a PSF1? Cheers

  6. #6
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    The underbonnet panel that yellow fuse is plugged into.

  7. #7
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    BTW you didn't say if the 1.6 is petrol or diesel!

  8. #8
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    Hi there Addo it's a petrol motor. Some sites suggest that faulty starters are a common issue.

  9. #9
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    They're cheaper than the fuse panel. EAI will have new ones available, possibly even on the shelf.

  10. #10
    Now go make me a sandwich Hotrodelectric's Avatar
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    Adam, what is this fuse supplying? The solenoid itself, or some circuit towards the solenoid?
    The measure of your character isn't what you do when people are watching- it's what you do when they aren't watching.

  11. #11
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    The battery feed is at lower left, wire 100 goes to the starter.

    The CAN command from the BSI and confirmation from wire 1025 (start position of the keyswitch, 12V feed) drives a solid state controller in PSF1 to pull in the micro-relay that's bonded with rubberised epoxy to the circuit board of PSF1 (also epoxy-encased). If you don't have CAN dialogue the keyswitch alone won't pull in the relay.

    Sometimes the relay reeds seem to arc and stick, other times I think they just erode.

    You can see how easy it is to splice in a "real" relay though.
    Attached Thumbnails Attached Thumbnails C4 1.6 keeps blowing starter fuse-starting_1_cropped.jpg  

  12. #12
    Now go make me a sandwich Hotrodelectric's Avatar
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    Quote Originally Posted by addo View Post
    The battery feed is at lower left, wire 100 goes to the starter.

    The CAN command from the BSI and confirmation from wire 1025 (start position of the keyswitch, 12V feed) drives a solid state controller in PSF1 to pull in the micro-relay that's bonded with rubberised epoxy to the circuit board of PSF1 (also epoxy-encased). If you don't have CAN dialogue the keyswitch alone won't pull in the relay.

    Sometimes the relay reeds seem to arc and stick, other times I think they just erode.

    You can see how easy it is to splice in a "real" relay though.
    Good night, it looks like the only reason for that setup was "because we can". Does any of that setup run out to the ignition, fuel, or antitheft? I take it F8 is the one that continues to pop.
    The measure of your character isn't what you do when people are watching- it's what you do when they aren't watching.

  13. #13
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    It is F8 that fails. I'll try to attach the whole starting circuit.
    Attached Thumbnails Attached Thumbnails C4 1.6 keeps blowing starter fuse-starting_3j.jpg   C4 1.6 keeps blowing starter fuse-starting_1j.jpg  

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