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My recent 2001 coupe purchase is showing B2282 B2284 B2283 codes, battery supply circuit #1 #2. Is a weak battery a potential cause.
Thanks as usual
Richard
I just bought the car. The tag on top of battery says 12/12 so its a 2012 autocraft gold. There`s plenty of juice when I turn the key to start it.
Thanks
The 82,and 84 are for the LDCM (left door control module "Battery" 1 and 2 fault) and the 83 is the RDCM (right door control module "Battery" 1 fault)... has the battery died lately ??...I'd clear the codes and see if they come back...each of the door modules
have 2 main power feeds and a ground hence "Battery 1 and 2" ....the Battery 1 is the LOW power feed (low AMP stuff) and the Battery 2 is the HIGH power feed (high AMP stuff). I'd make sure your battery and charging system is good....you may have to check the power feeds to both door modules anything between 9-16 volts is good as far as the door modules are concerned !!...good luck !!
Thanks again. You guys are the best. I just took delivery on sunday so I have no history on battery other than the tag says 12/12. 2012........my first thought was the battery ,almost 7 years old however it has plenty of juice when I turn the key.
When you read the codes it is important to note the H (History) or HC (History/Current) or C (Current) listed after the code. History means it happened some time in the past. History/Current means it happened in the past and is still happening. Current means it is happening now and not in the recent past.
History codes will generally drop off after a certain number of key cycles occur with no further incident. Changing a battery can throw codes but they will go to History and are not harmful. Just clear them if they bug you.
Put a DC Voltmeter across the BATTERY TERMINALS. Have a friend / assistant crank the engine. When you hear the starter first engage, watch the meter and see how low the voltage dips. Battery current is inversely proportional to voltage. If the battery is weak, it can drop as low as 7-8 VDC and still be able to spin the engine over. A weak battery will not properly output voltage under a high current load. The modules don't like that condition and complain.
If it drops lower than 9 VDC during cranking, I would replace it. A good battery will easily maintain 10+ VDC under starter load.
You can fully charge the battery and take it to the auto parts store and they can properly LOAD TEST it and tell you if its good or bad.
