Wipers/Washers

B210D-BATTERY VOLTAGE LOW (RSM)

WHEN MONITORED
With the ignition on.

SET CONDITION
Rain Sensor Module supply voltage less than 8.0 volts.

POSSIBLE CAUSES
- Vehicle charging system
- Rain sensing module

Diagnostic test

1. CHECK FOR ACTIVE DTC: B210D-BATTERY VOLTAGE LOW
Turn the ignition on.
With the scan tool, record and erase Rain Sensor Module DTCs.
Wait 30 seconds.
With the scan tool, read Rain Sensor Module DTCs.

Q: Is DTC: B210D-BATTERY VOLTAGE LOW active?

YES: Go To 2
NO: The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. VERIFY OPERATION OF THE VEHICLE CHARGING SYSTEM

NOTE:
- Troubleshoot any PCM charging/cranking DTCs before proceeding.
- Ensure the battery is fully charged.

Q: Are any charging system DTCs present?

YES: Refer to Manufacturer Code Charts.
NO: Replace the Rain Sensor Module.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test