P2600high severityPowertrain
Coolant Pump A Control Circuit Open
on 1998 Audi A3 1.6L I4 · FWD
What this code means
Open circuit in the electric auxiliary coolant pump control wiring.
Symptoms
- Engine overheating
- Check engine light
- No cabin heat
- Turbo overheating
Common causes
- Failed coolant pump
- Broken wiring
- Corroded connector
- Blown fuse
Diagnostic steps
- Check fuse
- Inspect pump connector
- Measure pump motor resistance
Repair notes
Replace coolant pump or repair wiring. Check for overheating damage.
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