Back to 1999 Dodge Ram Van
Help

1999 DODGE RAM VAN

3.9L V6•4WD•AUTOMATIC•gas
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor564Torque2402Fluid9DTC645Battery0Maintenance0Recalls0
P0157moderate severityPowertrain

O2 Sensor Circuit Low Voltage Bank 2 Sensor 2

on 1999 Dodge Ram Van 3.9L V6 · 4WD

What this code means

Low voltage from the downstream O2 sensor on Bank 2.

Symptoms

  • Check Engine Light

Common causes

  • Faulty sensor
  • Short to ground
  • Exhaust leak

Diagnostic steps

  1. Test voltage
  2. Check for shorts

Repair notes

Replace sensor.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 1999 Dodge Ram Van repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Dodge Ram Van — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →