2002 Blazer BCM not energizing, alternator not charging
#1
08-21-2019, 11:42 AM
2002 Blazer BCM not energizing, alternator not charging
Hello and thanks for taking time to read this.
I have a 2002 Blazer 4wd that no longer charges the battery, the OBDII port has no signal, and the instrument cluster is blank except for the "Service engine soon" light. I have checked all the fuses they are good, there is 12 volts and good ground at the BCM, OBDII, and Instrument cluster, however I am showing NO continuity between the ECM and the OBDII.
Any suggestions on where to look for the fault are greatly appreciated!
I have a 2002 Blazer 4wd that no longer charges the battery, the OBDII port has no signal, and the instrument cluster is blank except for the "Service engine soon" light. I have checked all the fuses they are good, there is 12 volts and good ground at the BCM, OBDII, and Instrument cluster, however I am showing NO continuity between the ECM and the OBDII.
Any suggestions on where to look for the fault are greatly appreciated!
#3
08-25-2019, 10:07 AM
Originally Posted by christine_208
Did you check the fuses and relays under the hood in addition to those in and under the dash?
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