Acura P16BB: Alternator B Terminal Circuit Low Voltage

Is your scanner showing Acura P16BB?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

00:00/00:00

Acura P16BB: Alternator B Terminal Circuit Low Voltage

OVERVIEW

Severity

High

DIY Difficulty Level

Intermediate

Repair Cost

$50-$300

Can I Still Drive?

Yes

What Does The Acura P16BB Code Mean?

Engine speed 500-3,000 rpm, alternator control mode 14.5 volts. The IGP terminal voltage is 12.0 V or less, and the alternator power generation amount is within 1.0 % to 50.0 %, for at least 60 seconds. The execution time is continuous.

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.

What Are The Potential Causes Of The Acura P16BB Code?

Faulty battery
Poor connections or loose terminals at the alternator and the main under-hood fuse box
“Open” circuit between the alternator and the main under-hood fuse box
Faulty alternator