B1455: Washer Fluid Level Indicator Circuit Open
The B1455 code indicates that the vehicle's control module (typically the GEM or front electronic module) has detected an open circuit in the dashboard warning light for low windshield washer fluid. This means there is a break in electrical continuity between the module and the indicator light, preventing the warning from illuminating when the system requires it. The circuit is monitored by checking for proper voltage or ground, and an open circuit is usually caused by faults in the wiring, the bulb itself, or the connectors in the signaling circuit.
1. Commonly Affected Makes
2. Most Common Causes
- Blown or internally open washer fluid level indicator bulb
- Damaged, disconnected, or cut wiring between the control module (GEM/FCIM) and the instrument cluster
- Corroded, oxidized, or retracted pins in the lamp circuit connector
- Faulty control module that supplies ground or voltage to the dashboard indicator
- Excessive resistance in the circuit due to poor splices or deteriorated connection points
3. Symptoms You Will Notice
- Washer fluid level warning light does not illuminate when fluid is low
- No visible warning on the dashboard when washer fluid level is low
4. Step-by-Step Diagnosis
Check the washer fluid level and fill if necessary to confirm the warning should be on
Inspect the washer fluid level indicator bulb in the instrument cluster for continuity or replace with a known good bulb
Visually inspect wiring and connectors between the GEM/FCIM module and the instrument cluster for damage, corrosion, or loose connections
Use a multimeter to test for voltage or ground at the indicator circuit to identify the open location
If wiring and bulb are okay, test the control module output to the indicator circuit; replace module if faulty
5. Frequently Asked Questions
Is it safe to drive?▼
Yes, it is safe to drive. The code indicates a low-severity issue with the washer fluid warning light, not a safety-critical system. However, you may not be alerted when washer fluid is low.
How much does it cost to fix?▼
Typically $50 to $200, depending on the cause. A bulb replacement is cheap ($5-$20), while wiring repairs or module replacement can cost more.