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Need help from the collective: P1699

Brad Roberts
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Brad Roberts Member

Brad Roberts

Posted
Posted

yes, I have used the search..

I'm reading conflicting info on this code. It comes across the dash (06 BoxsterS) when I pull it up in PIWIS, it says implausible signal from alternator?? (or something similar) Lost signal.

I have driven the car and data logged voltage (13.2-13.7) with all the lights on.. at night..

Thoughts?

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Loren Member

Loren

Posted
  • Admin
Posted

P1699 Three phase generator, electrical fault

NOTE: The actual voltage supplied by the three phase generator deviates from the required setpoint voltage (13.5 ... 15.5 V).
Possible fault causes
- Drive belt incorrectly adjusted / faulty
- Three phase generator faulty
Would make sense to check the grounds too...troublesome on this series cars.
Ahsai Member

Ahsai

Posted
Posted

How's the voltage with the a/c, rear defroster, and heated seats (if equipped) all ON? If it's lower than 13.2V, it's likely you have a alternator/cable problem.

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Loren Member

Loren

Posted
  • Admin
Posted

P1530 Time information via CAN missing or implausible

Possible fault causes
- Wrong software version in DME control unit (e.g. US data for EU vehicle)
- Wrong software version in gateway
- Wrong software version in instrument cluster
- Fault in CAN (e.g. loose contact)
- Instrument cluster faulty
I think it is time to check the grounds and battery. Too odd - and odd electrical faults usually point to the bad grounds or a weak battery in the 9x7-1 series.

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