Need help from the collective: P1699

[Brad Roberts]

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?

[Loren]

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]

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.

[Brad Roberts]

13.6 with everything on!! I will say there is ZERO drag on the alternator when I spin it by hand.

[Brad Roberts]

and.. I now have a P1530 to go with it :(

[Loren]

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.