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P03532021 Model Year TelemetryCritical Severity

P0353 on 2021 Kia EV6

Ignition Coil C Primary/Secondary Circuit Malfunction

Technical troubleshooting wire for fault code P0353 specifically tailored for the 2021 Kia EV6. Includes wiring sensor pinouts, freeze frame PID parameters, and step-by-step diagnostic tree.

2021 Engine Control Module (ECM) Specific Calibration
Kia EV62021 EV6
2021 Kia EV6
EVSingle RWD (229HP) / Dual AWD (320HP) / GT 577HP / 77.4 kWh battery
2021 Stats
Vehicle
2021 EV6
Single RWD (229HP) / Dual AWD (320HP) / GT 577HP / 77.4 kWh battery
ECU Subsystem
Automotive OBD-II
SAE Mode $01 & $02
Est. Repair Cost
$100 - $350 (DIY: $30 - $90)
OEM Parts & DIY
Urgency Level
Critical
Tow to Shop
Switch EV6 Model Year for P0353

Common 2021 EV6 Symptoms

  • Flashing CEL
  • Engine shuddering
  • Loss of power
  • P0303 code

Likely Root Causes on 2021 EV6

  • Cylinder 3 ignition coil internal short/open
  • Harness wiring fault
  • PCM coil driver failure

Step-by-Step Fix Protocol for 2021 Kia EV6

Step 1: Scan & Record Freeze Frame Data

Connect an OBD-II scanner to the DLC port under the driver dashboard. Record engine RPM, Short Term / Long Term Fuel Trim (STFT/LTFT), and engine coolant temperature at the moment P0353 set.

Step 2: Inspect Wiring Harness & Pin Voltages

Inspect the sensor connector on the 2021 EV6 engine bay. Use a multimeter to verify reference voltage (5.0V / 12.0V) and ground continuity.

Step 3: Component Replacement & PCM Reset

Replace the verified defective component using OEM or equivalent grade parts. Clear DTC P0353 and complete an EPA drive cycle to verify readiness monitors set to READY.

Recommended Parts & Testing Tools

Equipment for Diagnosing 2021 Kia EV6 (P0353)

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OEM Ignition Component

Direct-Fit Laser Iridium Spark Plugs (Set of 4/6)

4.8 / 5.0 (Top Rated)

Pre-gapped iridium spark plugs engineered to restore smooth combustion on 2021 Kia EV6.

$36 – $68 Prime
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Ignition Service Tool

Magnetic Swivel Spark Plug Socket Set

4.8 / 5.0 (Amazon Choice)

360-degree magnetic swivel socket prevents ceramic plug cracks inside deep engine spark wells.

$16.99 Prime
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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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