Code
C2510
HYUNDAI
C — Chassis
Trace Off Indicator | Tread Lamp Circuit Fail | TREAD LAMP open/short circuit | Tread Lamp Circuit Failure
Views:
UK: 18
EN: 17
RU: 13
AI status
Completed
Completed
100%
Causes
- Open circuit (broken wire, disconnected connector) in the tread lamp feed or ground
- Short to ground or short to battery in lamp wiring
- Burned-out or failed lamp (bulb or LED module)
- Corroded or poor connector/ground
- Blown fuse or fusible link for the lamp circuit
- Faulty BCM / body control module driver or internal relay
Symptoms
- Tread/Trace Off indicator or associated lamp does not illuminate
- Intermittent lamp operation (works sometimes, fails other times)
- Related dash message or indicator illuminated
- Possible other body electrical oddities if BCM driver affected
What to check
- Scan vehicle and confirm C2510 stored; record freeze frame and any related codes
- Visually inspect lamp, socket, connector and wiring for damage or corrosion
- Check the fuse(s) for the lamp circuit and replace if blown
- Confirm lamp bulb or LED by removing lamp and bench-testing or swapping with known good lamp
- Probe lamp connector with a multimeter: verify supply voltage with lamp connected and with ignition/lighting circuit activated
- Perform continuity check from BCM output/fuse to lamp connector and from lamp ground to chassis ground
Signal parameters
- Lamp supply voltage (ignition or lighting ON): ~11–14 V at lamp connector for 12 V systems
- Voltage at connector with lamp removed and switch ON: near battery voltage if feed is present
- Bulb resistance (incandescent): typically low ohms (single-digit to tens of ohms) — will measure near short if filament intact
- LED modules: may read open on low-voltage ohm checks — consult vehicle wiring diagram/spec for expected values
- Ground continuity:
Diagnostic algorithm
- Verify code: use scan tool to read C2510 and related codes; note whether fault is current or history.
- Inspect lamp and socket: remove lamp assembly, look for broken filament, burnt contacts, moisture or corrosion; replace lamp if suspect.
- Check fuse: locate and inspect fuse(s) for the lamp circuit; replace if blown and re-test. If fuse blows again, suspect short.
- Voltage test: with connector connected, turn the circuit ON and measure supply voltage at connector pin. If no voltage, trace back toward fuse/BCM.
- Ground test: measure continuity between lamp ground terminal and chassis; repair poor ground if high resistance.
- Continuity/wiring test: with power off, check continuity between lamp connector and BCM/fuse; repair open or high-resistance wiring.
- Short test: if fuse blows or low resistance to ground present, isolate sections of harness and disconnect connectors to locate short to ground; repair wiring/replace damaged harness sections.
- Module output test: if wiring and lamp are good but no proper signal from BCM, check BCM outputs per service manual (use scope if available) and verify driver operation; replace BCM only after confirming wiring and load are correct.
- Clear codes and road/test: clear DTCs and cycle the lamp on/off to confirm the fault does not return; document any intermittent behavior for further inspection.
Likely causes
- Bulb or LED module failed
- Loose or corroded connector at lamp or ground
- Damaged wiring harness (chafing, pinched, rodent damage)
- Blown fuse protecting the lamp circuit
- Faulty lamp socket or harness pin bent/mis-seated
Fault status
Status
Tread lamp circuit fault detected — open or short condition in tread/trace-off lamp circuit. Inspect lamp, connectors, wiring, fuse and BCM output.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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