KNOWN FAULT · Kia

Slow or no charging and warning light with code P343A98 because of the water pump connectors (Kia EV9)

Sources are not verified in real time and no entry confirms that your car is affected.

Engine / equipment: Kia EV9 electric
Period mentioned: 2024–2026 (US model years)
Symptoms: High-voltage charging is limited or does not work, and the engine warning light comes on.
Possible cause described: The connectors of the two electric water pumps (no. 1 for the power electronics, E65, and no. 2 for the battery, E66) may have been swapped by mistake. Code P343A98 (charger over temperature) is stored. Kia explains it in its technical note PS814.
Check for the garage: Before replacing parts, ask the workshop to check that connectors E65 and E66 are each on their own water pump.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database

Anonymous answer, no personal data.

How much does it cost to repair this fault?

No verified estimate; ask the garage for a quote.

A rough figure from the original database, not an up-to-date quote.

How is it checked?

Before replacing parts, ask the workshop to check that connectors E65 and E66 are each on their own water pump.

What are the symptoms?

High-voltage charging is limited or does not work, and the engine warning light comes on.

Which cars and years does it affect?

Which fault codes appear?

Find garages near you and, before you say yes, check whether the quote is reasonable.

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