Volvo Owners Club Forum - View Single Post

sleek lemur · Apr 3rd, 2021, 17:05

Still stuck!

New Charge Regulator fitted and....no progress. AMP light remains lit with engine running and voltage reading at battery remains stubbornly at 12.5.

1. I have 12 from the AMP light via the yellow cable to the Charge Regulator. I measured this with the yellow cable disconnected from the Charge Regulator.
2. When I reconnect the yellow wire to the Charge Regulator, the voltage reading drops to about 1.6.
3. I get zero reading at the DF connection on the alternator where the green cable plugs in.

I have checked both connections from the Charge Regulator to the alternator and also double checked the earth. All good. Alternator was bench tested by professional and is fine. I also previously very briefly connected the DF terminal to 12v and the alternator put out 14.5v at the battery.

Am "rather frustrated"!

Apr 3rd, 2021, 17:05	#21
sleek lemur Senior Member Last Online: Dec 29th, 2022 11:47 Join Date: Jun 2019 Location: Thorndon, near Eye, Suffolk, England	Still stuck! New Charge Regulator fitted and....no progress. AMP light remains lit with engine running and voltage reading at battery remains stubbornly at 12.5. 1. I have 12 from the AMP light via the yellow cable to the Charge Regulator. I measured this with the yellow cable disconnected from the Charge Regulator. 2. When I reconnect the yellow wire to the Charge Regulator, the voltage reading drops to about 1.6. 3. I get zero reading at the DF connection on the alternator where the green cable plugs in. I have checked both connections from the Charge Regulator to the alternator and also double checked the earth. All good. Alternator was bench tested by professional and is fine. I also previously very briefly connected the DF terminal to 12v and the alternator put out 14.5v at the battery. Am "rather frustrated"! __________________ Lemurs of the world rise up!