C0193 low

TPMS Antenna Circuit Malfunction

The C0193 code means the vehicle's onboard diagnostic system has detected: TPMS Antenna Circuit Malfunction. This is a low severity code.

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Keep driving?: Yes, but fix soon
DIY difficulty: moderate
Estimated cost: $50 - $300 (parts and labor)

Read ABS Codes

BlueDriver Bluetooth Pro Scanner

Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.

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Read ABS Codes

LAUNCH CRP123X (Reads ABS + Chassis)

Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.

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Common Symptoms

TPMS sensors intermittently not reporting
Reduced TPMS reception range
TPMS light on with all sensors showing fault
Sensor signals only received at certain speeds
TPMS antenna DTC stored in module

Probable Causes (Ranked by Likelihood)

Damaged TPMS antenna Very High
Corroded antenna connector High
Antenna cable damaged or pinched Moderate
TPMS module antenna input failure Low

Step-by-Step Diagnostic Procedure

Scan TPMS module for antenna-specific DTCs
Inspect TPMS antenna for physical damage
Check antenna cable and connector
Test antenna signal reception strength
Verify antenna mounting and position

Frequently Asked Questions

Where is the TPMS antenna located?

The TPMS antenna may be a wire routed along the body or integrated into the rear window. Some vehicles have multiple antennas, one near each wheel arch, for better reception.

Can aftermarket tinting affect the TPMS antenna?

If the TPMS antenna is integrated into the rear window, metallic window tint can interfere with the signal. Non-metallic ceramic tints generally do not cause issues.

Is the TPMS antenna expensive to replace?

The antenna itself is usually inexpensive, but access can vary. If it is integrated into the window or behind trim panels, labor costs can add up depending on the vehicle.