What Does This Indicator Mean?
The Chrysler Red Electric Power Steering EPS Warning Light is a critical alert triggered when the vehicle’s Powertrain Control Module (PCM) or Electric Power Steering (EPS) control module detects a catastrophic failure or complete loss of functionality within the power-assisted steering subsystem. Unlike older hydraulic setups, modern Chrysler vehicles utilize a rack-mounted or column-mounted brushless electric motor to provide steering torque assist. The EPS module continuously monitors motor temperature, rotor position sensors, internal voltage draws, and CAN-bus communication signals. When the red EPS icon illuminates, it indicates that the electronic assist has completely shut down or is operating under a severe safety fault condition, converting your steering system into manual steering mode, which requires immense physical effort to turn the wheels.
Can I Still Drive with This Light On?
Strict Mechanical Verdict: Do not drive the vehicle. Because the severity rating of this dashboard indicator is red, it demands an immediate cessation of driving. Operating a Chrysler vehicle with a red EPS light active creates an extreme safety hazard. Without electronic power assist, the steering effort increases exponentially, making sudden evasive maneuvers, tight low-speed parking, and sharp cornering exceptionally difficult and dangerous. Furthermore, severe electrical shorts within the EPS steering gear housing can draw massive amounts of current, potentially melting wiring harnesses or risking an electrical fire.
Common Causes of the Warning
- Internal Electric Motor Failure: Internal short circuits, worn brushes in brushed motors, or open windings within the brushless EPS motor assembly can cause the control module to cut power entirely to prevent a thermal event.
- Voltage Drops and Alternator Failure: Electric power steering systems demand high electrical current. A failing alternator, degraded battery health, or a loose main 12-volt supply cable will trigger a red EPS light due to undervoltage protection protocols.
- Water Ingestion and Corrosion: Moisture intrusion into the steering gear housing or electronic control unit connectors can cause severe galvanic corrosion, short-circuiting the internal logic board and sensor circuits.
How to Diagnose and Reset It
Diagnosing a Chrysler red EPS warning light requires more than a basic powertrain OBD2 scanner, as chassis and steering codes reside in specialized modules. First, safely park the vehicle and check the battery voltage using a digital multimeter; resting voltage should be around 12.6 volts, and charging voltage should read between 13.5 and 14.7 volts with the engine running. Next, connect an advanced diagnostic scan tool capable of reading Chrysler-specific Chassis (C-codes) to retrieve active diagnostic trouble codes from the EPS or Power Steering Control Module (PSCM). Inspect the under-hood wiring harness, high-amp fuses, and ground points connected to the steering rack for signs of corrosion, melting, or looseness. Once the underlying mechanical or electrical fault has been professionally repaired, clear the Diagnostic Trouble Codes (DTCs) using the scan tool and perform a steering angle sensor calibration procedure if required by the Chrysler service manual.