Complete DTC Guide for i10, Creta, Seltos, Tucson and More
Understanding Hyundai and Kia error codes is essential for diagnosing faults on i20, Creta, Seltos, Sonet and all other Hyundai and Kia models.
Hyundai and Kia share platforms, ECU architecture, and fault patterns so completely that separating them into two guides would be a waste of your time. If you’re working on a Hyundai i10 or a Kia Sonet, a Hyundai Creta or a Kia Seltos — you’re working on the same engine management philosophy. The DTC codes are largely identical.
What makes Hyundai/Kia diagnosis interesting is the mix of very reliable platforms and a few well-documented problem areas that the industry knows about. The Theta II GDI recall in the US, the CVVT sludge issue, the KSDS knock detection system — these are brand-specific situations where a generic code gives you a starting point but brand knowledge tells you what you’re actually dealing with.
This guide covers everything from the budget Santro and Grand i10 to the turbocharged Venue and Tucson, and the commercial/fleet Starex.
Hyundai/Kia Engine Families — Know Your Platform
Before scanning, know which engine you’re working on:
- Kappa 1.0 / 1.2 (Santro, Grand i10, i20, Nios): Simple NA engine, Kefico ECU
- Gamma 1.4 / 1.6 MPI (i20, Verna, Creta, Seltos): Most common workshop platform in India
- Gamma 1.4 / 1.6 T-GDI (Venue, i20 N Line, Tucson): Turbocharged direct injection — different failure modes
- Nu 2.0 MPI (Sonata, Tucson older): Naturally aspirated 2.0
- Theta II 2.0 / 2.4 GDI (Sonata, Santa Fe, Sportage — mainly US/UK): Rod bearing issue platform
- U2 1.4 / 1.6 CRDi (Verna, Creta diesel, Tucson diesel): Common rail diesel with Bosch EDC
- R 2.2 CRDi (Santa Fe, ix35 diesel — UK market): Larger diesel platform
The ECU is Bosch ME17 on most petrol platforms, Kefico (Hyundai’s in-house supplier) on smaller engines, and Bosch EDC on diesels.
Complete Hyundai / Kia DTC Code List
Core Engine Codes (P0xxx — SAE Generic)
| Code | Description | Hyundai/Kia Specific Notes |
|---|---|---|
| P0011 | Camshaft Position Timing Over-Advanced | Oil condition, CVVT solenoid — see below |
| P0014 | Camshaft Position Timing Over-Retarded | Same system, opposite direction |
| P0016 | Crankshaft/Camshaft Correlation | Timing chain stretch on Gamma engines |
| P0087 | Fuel Rail Pressure Low | Diesel: lift pump or high-pressure pump |
| P0088 | Fuel Rail Pressure High | Pressure regulator on diesel |
| P0100 | MAF Circuit Malfunction | MAF sensor — clean before replacing |
| P0107 | MAP Sensor Low | Intake hose crack or failed sensor |
| P0115 | ECT Sensor Circuit | Coolant temp sensor |
| P0130 | O2 Sensor Circuit B1S1 | Upstream lambda sensor |
| P0171 | System Too Lean Bank 1 | Vacuum leak, MAF, fuel delivery |
| P0172 | System Too Rich Bank 1 | Stuck injector or O2 sensor |
| P0251 | Injection Pump Metering | Diesel injection pump control |
| P0300 | Random Misfire | Check all cylinders individually |
| P0301–P0304 | Misfire Cylinder 1–4 | Coil, plug, injector |
| P0335 | Crankshaft Position Sensor | CKP sensor or reluctor ring |
| P0340 | Camshaft Position Sensor Circuit | CMP sensor — common on Gamma 1.2 |
| P0380 | Glow Plug Circuit | Diesel cold start system |
| P0401 | EGR Flow Insufficient | EGR carbon buildup — diesel |
| P0420 | Catalyst Efficiency Low | O2 sensor ageing or cat failure |
| P0441 | EVAP Purge Control | Purge solenoid |
| P0455 | EVAP Large Leak | Fuel cap or hose |
| P0456 | EVAP Small Leak | Cap seal or micro-crack |
| P0500 | Vehicle Speed Sensor | VSS or ABS ring |
| P0505 | Idle Control Malfunction | IACV or throttle body |
| P0560 | System Voltage | Battery/alternator |
| P0601 | ECU Memory Error | Check battery voltage first |
| P0700 | Transmission Control | Automatic gearbox fault code |
| P0715 | Input/Turbine Speed Sensor | ATF condition, sensor |
Hyundai/Kia Manufacturer-Specific Codes (P1xxx)
| Code | Description | Platform / Notes |
|---|---|---|
| P1326 | Knock Sensor Detection System (KSDS) | Theta II GDI — critical (see below) |
| P1529 | Immobiliser ECU Communication | Common after battery disconnection |
| P1603 | EEPROM Malfunction | ECU internal memory |
| P1612 | Immobiliser System Malfunction | Key or transponder issue |
| P1624 | TCM Communication Error | Gearbox module communication |
| P1693 | Fuel Injector Driver Circuit | Injector driver in ECU |
| P1296 | Coolant Temperature Sensor (No Relearn) | After ECU reset — needs drive cycle |
| P1307 | Chassis Acceleration Sensor | ESP system input |
| P1120 | Accelerator Position Sensor | TPS/APS correlation fault |
ABS / Chassis Codes
| Code | Description | Notes |
|---|---|---|
| C1200 | ABS Control Module Fault | Module or power supply |
| C1202 | Motor Relay Fault | ABS pump relay |
| C1210 | Left Front Wheel Speed Sensor | ABS sensor — check harness routing |
| C1211 | Right Front Wheel Speed Sensor | Same |
| C1212 | Left Rear Wheel Speed Sensor | Rear sensor |
| C1213 | Right Rear Wheel Speed Sensor | Rear sensor |
| C1604 | ESP System Fault | Stability control — check all inputs |
Network / Communication Codes
| Code | Description | Notes |
|---|---|---|
| U0100 | Lost Communication with ECM | CAN bus — check fuses and harness |
| U0101 | Lost Communication with TCM | Gearbox module |
| U0121 | Lost Communication with ABS/ESC | ABS module dropout |
| U0131 | Lost Communication with MDPS | Electric power steering module |
| U0140 | Lost Communication with BCM | Body control module |
The Critical One: P1326 and the Theta II Engine
If you’re reading this from the USA or UK and you own a Hyundai Sonata, Santa Fe Sport, Tucson, or Kia Sportage, K5, or Sorento from roughly 2011 to 2019 with a 2.0T or 2.4 GDI engine — P1326 is the code you never want to see and must never ignore.
P1326 is Hyundai’s KSDS (Knock Sensor Detection System) code. The KSDS was developed specifically to detect abnormal knock patterns caused by connecting rod bearing failure in the Theta II GDI engine family. These engines have a well-documented defect where metal debris from bearing failure circulates through the oil, and in severe cases leads to catastrophic engine seizure.
What P1326 means in practice: The knock sensor has detected vibration patterns consistent with rod bearing knock. The engine may feel normal. It may even sound normal at idle. But the clock is running.
Hyundai and Kia extended warranties on affected vehicles, and class action settlements in the US have provided compensation in many cases. If you see P1326:
- Do not dismiss it
- Check your VIN at nhtsa.gov for open recalls
- Check oil level and condition immediately
- Contact a Hyundai/Kia dealer before driving further
This is not a scare tactic. I’ve seen enough catastrophic Theta II failures to know that P1326 is one code that demands immediate action, not a “I’ll get to it next month” response.
CVVT Issues — P0011, P0014, P0016
The Continuously Variable Valve Timing (CVVT) system on Hyundai/Kia Gamma and Nu engines is oil-pressure actuated. The CVVT solenoid (Oil Control Valve) moves a phaser that advances or retards camshaft timing.
P0011 (over-advanced) and P0014 (over-retarded) both point to this system. Before you replace the OCV:
- Check oil level — CVVT needs adequate oil pressure to function
- Check oil condition — sludge in the OCV screen is the most common cause. The screen costs almost nothing; cleaning takes 30 minutes
- Check oil change interval — skipped services accelerate this fault
- Confirm with live data: watch actual vs desired cam timing while revving. If the phaser can’t move, the OCV screen is clogged or the phaser itself is worn
P0016 (cam/crank correlation) on Gamma engines with higher mileage can indicate timing chain stretch. This is a bigger job — chain, tensioner, and guides — but necessary if confirmed.
Gamma 1.4 CRDi Diesel — What to Watch
The U2 1.4 CRDi diesel in the Indian Verna and older Creta is a capable engine with specific fault tendencies:
- P0380/P0670: Glow plug faults are common if the vehicle regularly sits in hot weather and isn’t used for weeks at a time. Check individual glow plug resistance before replacing all four
- P0401: EGR clogs badly in city traffic. At 80,000 km+ it’s worth a full EGR clean
- P0087: Low rail pressure on a well-maintained engine usually means a failing rail pressure sensor or a dirty fuel filter, not the pump itself
Workshop Story: The Venue That Nobody Could Fix
A 2021 Hyundai Venue Turbo DCT came in with intermittent hesitation and a P0016 code. Two Hyundai service centres had cleared the code twice — it came back both times. The service manager told the owner it was a “sensor calibration issue” and offered a goodwill ECU software update. Hesitation remained.
I ran live data on my Launch X431 CRP429C during a full drive cycle. Cam timing correlation was off by 4–6 degrees on acceleration — not massive, but enough. Pulled the CVVT OCV on the intake side. Screen was partially blocked with a very fine metallic deposit — likely from a previous service where the oil wasn’t fully drained before refilling.
Cleaned the OCV screen, flushed with fresh oil, did an oil change with the correct 5W-30 spec. Test drive — smooth, no hesitation. Code has not returned in four months.
The lesson: intermittent cam timing codes almost never need ECU replacement. They need oil system attention.
Scanning Hyundai/Kia Properly
For generic codes, any OBD2 scanner works. For manufacturer-specific codes (P1xxx, U-codes, ABS, SRS, body systems), you need a scanner with Hyundai/Kia coverage. The Foxwell NT301 handles generic codes for under ₹3,000. Step up to the Autel MaxiCOM MK808 for full Hyundai/Kia manufacturer depth — CVVT actuation, KSDS logs, immo adaptation.
The Hyundai GDS (Global Diagnostic System) is the OEM tool — dealerships use it. A good aftermarket scanner gets you 80–90% of the way there.
FAQ
My Hyundai Creta throws P0341 — is this serious?
P0341 is a camshaft position sensor range/performance fault. On the Gamma 1.4 petrol, the CMP sensor itself fails at relatively low mileage (some report it at 30,000–50,000 km). It’s an inexpensive part. Replace the sensor and clear the code — if it returns, check the tone wheel on the cam pulley for debris or damage.
Can I reset the KSDS / P1326 warning myself?
Technically yes, any scanner can clear the code. But this is exactly what you should not do without understanding the cause. If the KSDS system detected abnormal knock, clearing the code removes your warning signal. It doesn’t fix the underlying bearing issue.
My Kia Seltos automatic jerks at low speed and shows P0700 — what is it?
P0700 is a gateway code. The DCT (dual-clutch gearbox) on the Seltos has known shift quality issues on early units that were addressed by Kia through software updates. Visit a dealer for a TCU reflash before suspecting hardware failure.
Battery was replaced on my i20 and now the immobiliser light is on with P1529 — why?
P1529 is a communication fault between the ECU and the immobiliser module that occurs after power interruption. The fix is a simple key relearn procedure — ignition on for 30 minutes with the original key in most cases, or a scanner-guided immobiliser adaptation. Don’t pay for ECU replacement for this.
Do I need a Hyundai dealer scanner or will aftermarket work?
For routine diagnosis, a good aftermarket scanner is sufficient. For KSDS data logs, automatic gearbox adaptation, or immobiliser programming, a dealer tool or a professional-grade scanner with full Hyundai coverage gives you more access.
The Verdict
Hyundai and Kia make genuinely good cars. Their fault patterns are manageable if you know what you’re dealing with — oil-condition-sensitive CVVT systems, a critical watch on Theta II GDI engines for P1326, and a diesel EGR that needs regular attention.
What trips up DIYers and small workshops is treating these codes generically. A P0011 isn’t just a “camshaft sensor” — it’s an oil quality conversation. A P1326 isn’t just a knock sensor — it’s a potential engine failure conversation.
Know the platform. Read live data. Act on the right codes with urgency.
Babuu has been working in automotive electronics since 2002 and opened HT ECM Solutions in Bachupally, Hyderabad in 2017 — a professional ECU repair and vehicle diagnostics workshop.
Related reads:
- Maruti Suzuki Error Codes — Complete DTC Guide
- Toyota Error Codes — Platform-Specific DTC Guide
- Car Error Codes by Brand — All Makes Compared
- Best OBD2 Scanners for Indian Cars
- ECU/PCM Programming Tools — Professional Guide
The Autel MX808 is the tool we recommend for reading and clearing these Hyundai & Kia fault codes. It supports all standard OBD2 protocols used by Hyundai & Kia vehicles and provides full system diagnostics.