Wiper Control Module Power Supply Circuit Low
This code indicates a low voltage condition in the wiper control module power supply circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The wiper control module isn't getting enough power to function correctly, which may make your windshield wipers stop working or act erratically.
What the computer is actually seeing
The body control module (BCM) detects that the voltage levels in the wiper control module circuit drop below 10 volts when they should be around 12 to 14 volts.
What a healthy reading looks like
Voltage should be between 12V to 14V with the engine running; less than 10V indicates a problem.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check battery voltage; it should be at least 12V with the engine off and between 13.5V to 14.5V with the engine running. If volts are low, charge or replace the battery.
- 2Inspect the wiper control module connector for corrosion or loose connections. Repair as necessary.
- 3Check the circuit wiring for damage or shorts. Repair or replace wires as needed.
- 4Inspect and test the fuse for the wiper control circuit; replace if blown. If all checks pass, consider replacing the wiper control module.
Common causes
- Bad ground connection
- Corroded or damaged wiring
- Faulty wiper control module
- Blown fuse in the associated circuit
- Battery or alternator issues
Typical repair cost
$$ ($100 - $300)
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but your wipers may not function properly in bad weather, so fix it soon.
Will the problem come back after fixing?
If the underlying issue, like a bad ground or corroded wires, isn't fixed, then yes.
Why does this code pair with others?
Codes like B2324 and B2319 are usually part of the same circuit or system, indicating related issues.
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