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104 Posts
Since last years I have been chasing some fault codes, and it only happens when the outside temp is around 90's.
The battery was already about 5 years old and the voltage was not maintaining, the alternator was charging good so I replaced the battery and no codes.
Here we go again, the little Gremlin of codes and this time the codes are:
P0700 - CONFIRMED
U0073 - CONFIRMED
U0100 - CONFIRMED
P0700 - PENDING
U0073 - PENDING
U0101 - PENDING
U0100 - PENDING
U0073 - PERMANENT
U-100 - PERMANENT
This time I checked the charging system with my Fluke meter and found the alternator is charging very low at 12.52v and yet the battery indicator light was just lightly above the voltage threshold level. This only happens when temp is above high 80's the radio is on, the AC is on, the fan blower is set at medium, and the SUV is just coming to a stop.
the Foxwell scan tool voltage was showing 12.20v, the graph was showing from 12.17v to 12.28v
So now what I need to do is to replace the alternator, and confirm the output voltage is at least 13.50v or better
The battery was already about 5 years old and the voltage was not maintaining, the alternator was charging good so I replaced the battery and no codes.
Here we go again, the little Gremlin of codes and this time the codes are:
P0700 - CONFIRMED
U0073 - CONFIRMED
U0100 - CONFIRMED
P0700 - PENDING
U0073 - PENDING
U0101 - PENDING
U0100 - PENDING
U0073 - PERMANENT
U-100 - PERMANENT
This time I checked the charging system with my Fluke meter and found the alternator is charging very low at 12.52v and yet the battery indicator light was just lightly above the voltage threshold level. This only happens when temp is above high 80's the radio is on, the AC is on, the fan blower is set at medium, and the SUV is just coming to a stop.
the Foxwell scan tool voltage was showing 12.20v, the graph was showing from 12.17v to 12.28v
So now what I need to do is to replace the alternator, and confirm the output voltage is at least 13.50v or better