Battery Voltage

The forum to discuss:
- V2.2, V3 assembly,
- V2.2, V3 troubleshooting, and
- Connection troubleshooting
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.

If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).

If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days

The full forum rules are here: Forum Rules, be sure to read them all regularly.
Post Reply
JohnR
MegaSquirt Newbie
Posts: 2
Joined: Thu Nov 13, 2008 9:27 am

Battery Voltage

Post by JohnR »

I purchased an assembled unit from ditautotune MS-II PCB v3.57. When trying to connect and configure it I get a message that the battery voltage is too low. I have tested pin 28 and have proper battery volatge and I have tested all 6 ground pins and have appropriate ground yet the MS does not see battery voltage, however it does communicate with a pc if I test the connection.
66fb

Re: Battery Voltage

Post by 66fb »

When trying to connect and configure it I get a message that the battery voltage is too low.
What voltage did you measure from your battery when MS indicated low?
I have tested pin 28 and have proper battery volatge
Did you swap one of the gauges in MT to display battery voltage or are you just going by the "battery low/ok" box?
JohnR
MegaSquirt Newbie
Posts: 2
Joined: Thu Nov 13, 2008 9:27 am

Re: Battery Voltage

Post by JohnR »

13.16 volts at battery
Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: Battery Voltage

Post by Matt Cramer »

Sounds like a firmware corruption issue; these can often generate a false low voltage message. Try reloading the firmware and creating a new MSQ from the settings that load with the firmware.
Post Reply