Multiple fault codes but no CEL

[06YarisRS]

Have you put a voltmeter on your alternator? With all those codes, I'm wondering if you're having voltage delivery problems. Of course, you're not having drivability problems, so maybe not.

[Neinris]

Originally Posted by 06YarisRS

Have you put a voltmeter on your alternator? With all those codes, I'm wondering if you're having voltage delivery problems. Of course, you're not having drivability problems, so maybe not.

Actually, I didn't... That's why I thought maybe my belt was slipping a bit. It passed the voltage test when I used the ODBII reader. I'll check right now.

[Neinris]

Originally Posted by Neinris

Actually, I didn't... That's why I thought maybe my belt was slipping a bit. It passed the voltage test when I used the ODBII reader. I'll check right now.

Ok, so I let her warm up to idle, took the negative cable off the battery, and read the alternator to ground, and she's making +14VDC. So that's not it...