Powertrain Definition only Lights the check engine lamp

P2601: Coolant Pump A Control Circuit Performance/Stuck Off

Standardized SAE J2012 code · P26xx — Computer and output circuits

What does P2601 mean?

The electric coolant pump A is commanded on but does not run. Coolant temperature climbs faster than expected with no flow detected.

The code tells you which monitor failed, not which part is broken. Test before replacing parts.

Common causes

  • High Pump motor seized by debris or sediment
  • Medium Cracked rotor magnet decouples drive
  • Low Carbon or debris buildup preventing free movement

Likelihood is a general estimate across vehicles; your make and model may differ.

Add your car to see reports of P2601 on the same make and model first.

P2601 in the community

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