With key off unhook your positive battery terminal.
Gmc sierra battery drain.
To isolate the source of the battery drain connect an ammeter to the positive red battery cable observe the current drain likely less than 1 amp then one at a time remove each fuse check to see if the current drain has dropped to near 0 then reinsert the fuse.
Put one multimeter lead on the battery terminal and the other on the positive cable.
The recall involves certain 2019 2020 chevrolet silverado 1500 and gmc sierra 1500 models.
Diagnostic instructions perform the diagnostic system check vehicle prior to using this diagnostic procedure.
Chevy truck forum silverado sierra gmc truck forums.
The trucks may have connectors.
Excuse me for not searching the forum but here are my details.
Set the meter to read amps.
One problem related to battery dead has been reported for the 2015 gmc sierra 1500.
2014 chevrolet silverado 1500 4wd cheyenne sierra silverado 1500 service manual 5565479 document id.
Nov 28 2012 9 34pm.
Battery drain parasitic drain issue.
One by one pull each fuse in your fuse box.
Now since its being drained i assume you ll see some kind of amperage draw.
You re basically making the multimeter part of the circuit.
The battery is less than a year old after 7 days sitting battery goes dead i have noticed a slow low voltage crank after a long sit.
2904767 battery electrical drain parasitic load test 12 v battery the following procedure is for the 12 v battery only.
The problem stems from an electrical connection with the alternator.
The most recently reported issues are listed below.