OBD-II code · Powertrain (generic, extended)
P24A7 EGR Cooler Coolant Pump Control Circuit Open
The dedicated coolant pump for the EGR cooler has an open control circuit - the pump cannot run, EGR cooler temperature rises beyond the safety threshold.
Is it safe to drive with P24A7?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in pump or wiring
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 1–3 h
- Emissions test
- Likely to fail
- Parts involved
- Egr Cooler Coolant Pump
Related codes
- P24A4Particulate Filter Restriction Soot Accumulation Too High Bank 1
- P24A5EGR Cooler Bypass Control Stuck Open Bank 1
- P24A6EGR Cooler Bypass Control Stuck Open Bank 2
- P24A8EGR Cooler Coolant Pump Performance Stuck Off
- P24A9EGR Cooler Coolant Pump Control Circuit Low
- P24AAEGR Cooler Coolant Pump Control Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.