Chrysler B221D: Rain Sensor Module (RSM) Internal

Is your scanner showing Chrysler B221D?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Chrysler B221D: Rain Sensor Module (RSM) Internal

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$100-$250
Can I Still Drive?
:
Yes

What Does The Chrysler B221D Code Mean?

The Rain Sensing Module detects an internal failure or the (D508) LIN Bus circuit is shorted.

What Are The Potential Causes Of The Chrysler B221D Code?

  • (D508) LIN bus circuit short to ground
  • (d508) LIN bus circuit short to voltage
  • Rain sensor module (RSM)
  • Wireless ignition node (WIN)

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Rain Sensor Module - Mopar (5026608AD)
>>> MODULE-WIRELESS IGNITION NODE

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Chrysler B221D, DTCDECODE.

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