C0094 DTC: Traction Control Indicator Circuit Open
OBD2 trouble code C0094 indicates that the ABS/TCS control module has detected an open circuit condition in the traction control indicator circuit. The module cannot properly control or monitor the traction control warning indicator.
What Does C0094 Mean?
The traction control indicator circuit connects the ABS/TCS module with the instrument cluster. An open circuit means the electrical path is interrupted due to broken wiring, disconnected terminals, damaged connectors, or a failed indicator circuit.
Traction Control Indicator Circuit Diagram
│
│ Indicator Control Wire
│
X Open Circuit Point
│
▼
Instrument Cluster
│
▼
Traction Control Lamp
Common Symptoms
- Traction Control warning lamp does not operate correctly
- TCS warning light remains ON
- ABS or stability control warning may appear
- Traction control system may be disabled
- Intermittent indicator operation
Possible Causes
- Broken indicator signal wire
- Disconnected connector
- Corroded terminals
- Damaged instrument cluster circuit
- ABS/TCS module output fault
- Previous wiring repair failure
Driving Risk Level
The vehicle may continue to drive normally, but traction control and stability assistance may not be available. On slippery roads, reduced electronic control can increase wheel spin and reduce vehicle stability.
Drive carefully and repair the fault before depending on traction control during emergency situations.
C0094 Diagnostic Flow Chart
Electrical Testing (Typical)
| Battery Voltage | 12V - 14.8V |
| Circuit Continuity | Low Resistance Required |
| Connector Condition | Clean And Secure |
Oscilloscope Diagnostic Test
For direct indicator circuits, an oscilloscope can help detect intermittent signal loss. For CAN-based systems, check CAN High and CAN Low communication signals.
Scanner Live Data
- Traction Control Indicator Command
- ABS Module Communication Status
- System Voltage
- TCS Status
- Warning Lamp Request
Estimated Repair Cost
| Diagnostic Scan | $50 - $120 |
| Wiring Repair | $80 - $300 |
| Connector Repair | $50 - $150 |
| Instrument Cluster Repair | $200 - $700 |
| ABS/TCS Module Replacement | $500 - $1500+ |
Common Repairs
- Repair broken wiring
- Replace damaged connectors
- Repair instrument cluster
- Repair ABS/TCS module if required
- Clear codes and perform road test
Related DTC Codes
- C0090 - Traction Control Indicator Circuit Fault
- C0091 - Traction Control Indicator Circuit Low
- C0092 - Traction Control Indicator Circuit High
- C0093 - Traction Control Indicator Circuit Performance
FAQ
Can I drive with C0094?
Short driving may be possible, but traction control and stability features may not work correctly.
What is the most common cause of C0094?
Broken wiring, loose connectors, and damaged terminals are common causes of an open indicator circuit.