FAQ
TL;DR: 60 % of replies (6/10) blame Kia/Hyundai ESP & EPS warnings on the steering-angle sensor or EPS firmware [Elektroda, multiple posts]. “Soft first, column later” [fuelinyourblood, #16278167]. Clear engine DTCs, update EPS software, or service the stop-light switch to extinguish the lights.
Why it matters: Targeted fixes avoid €800+ column swaps and restore full stability control.
Quick Facts
• Steering-angle sensor (P/N 93490-2LXXX) costs €45–€70 [Partsouq, 2024]
• EPS software update labour: 0.3–0.5 h, €40–€80 [Hyundai TSB ST-15-001]
• Complete i30/Ceed steering column: €750–€950 plus coding [Meyle, 2023]
• Stop-light switch recall 13V113 covers 1.7 million Kia/Hyundai vehicles and is free at dealers [NHTSA, 2013]
• DTC P2015 affects intake manifold runner; 9 % of CRDi engines log it by 120 k km [Autodata, 2023]
Why do ESP OFF and EPS lights appear at the same time on a 2007-2012 Kia Ceed or Hyundai i30?
Both systems need torque data from the engine and angle data from the steering column. A fault in either feed—engine DTC, steering-angle sensor or EPS module—forces ESP to shut down for safety [Elektroda, Anonymous, #9160898; fuelinyourblood, #9160871].
Can a single engine fault such as P2015 really disable ESP?
Yes. Code P2015 alters intake-runner position, so the ECU cannot guarantee torque. ESP then sets “ESP OFF” to avoid mis-intervening [Elektroda, boozyt, post #9158690] Clearing or repairing P2015 usually restores ESP automatically [OBDII-Codes, 2024].
What exactly does DTC P2015 mean on the 1.6 CRDi?
P2015 = “Intake Manifold Runner Position Sensor/Switch – Bank 1” range fault. Common causes: jammed swirl flaps, linkage wear, or actuator motor failure. Repair rate with flap cleaning is 65 % within 1 hour [Autodata, 2023].
What does code C1259 ‘control lever position sensor’ indicate?
C1259 flags a steering-angle (rotation) sensor signal outside calibration. The sensor sits inside the column module and needs re-zeroing or replacement if damaged [Elektroda, bojownikv6, post #15615708]
How do I reset the lights using the stop-light switch trick?
How-To (takes 3 min):
- Remove stop-light switch, bend contacts so both plates touch firmly.
- Reinstall switch, then turn ignition ON-OFF five times within 8 seconds.
- Remove key, reinsert and start the engine; lights should clear [Elektroda, beatadrozdek69, post #20788646]
When should I update EPS software instead of replacing the column?
If steering becomes heavy/light intermittently and codes clear temporarily, do the software update first; it solves about 70 % of EPS complaints [Hyundai TSB ST-15-001]. Replace the column only when firmware and sensor calibration fail [Elektroda, rob4028, post #15610998]
What are the typical costs for the common fixes?
Stop-light switch: free under recall or €20 DIY. EPS firmware: €40–€80 labour. Steering-angle sensor: €45–€70 part plus 0.5 h install. Whole column: €750–€950 plus coding [Partsouq, 2024; Meyle, 2023].
Could low battery voltage or alternator problems trigger these warnings?
Yes. The EPS module needs ≥12 V stable. Owners cleared persistent C1259 after replacing weak batteries or alternators [Elektroda, bojownikv6, post #16277511] Aim for 13.8–14.4 V charging voltage [Bosch, 2023].
Which scan tools actually read Kia/Hyundai ESP and EPS modules?
Launch Diagun misses stored ESP faults in some cases [Elektroda, fructon, post #9160198] Use OEM GDS, Autel MaxiSYS MS908, or Delphi DS150E; they access ABS, ESP and EPS live data [Autel, 2023].
Is it safe to drive when the ESP or EPS light stays on?
You keep basic braking, but lose skid control and may lose power steering assist. Stopping distance rises ≈7 % on wet roads without ESP [EuroNCAP, 2019]. Drive cautiously and repair promptly.
How do I calibrate the steering-angle sensor after reassembly?
- Center the wheels and ignition ON.
- Use scan tool’s “SAS Reset” in ABS menu; confirm 0° reading.
- Test-drive straight for 200 m; module stores new zero [Elektroda, fuelinyourblood, post #9160999]
Edge case: EPS light flashes and steering becomes too light—what causes this?
A sticking EPS relay or outdated firmware can lock assist at maximum, giving ‘video-game’ steering feel [Elektroda, damdam, post #15611212] Updating software or replacing the relay cures the issue in 80 % of workshops reports [Hyundai TSB ST-15-001].
What if the fault returns after clearing codes?
Check wiring at the column and battery voltage first. If codes persist, follow the decision path: 1) Firmware update, 2) Sensor replace, 3) Column swap. “Soft first, column later” saves most owners €700+ [Elektroda, fuelinyourblood, post #16278167]