OBD-II code · Powertrain (generic, extended)
P2A72 Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Low
The control circuit of the alternative fuel hydraulic fuel pump select valve reports a control circuit low condition. Pump path selection cannot be commanded reliably.
Is it safe to drive with P2A72?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to ground
- PossibleInternal short in valve coil
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- Check engine light on
- Hard start, no start, or stalling under load
- Power loss especially at high load or rpm
- Possible long cranking time
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- Parts involved
- Alt Fuel Hyd Pump Select Valve, Wiring Harness, Afcm
Related codes
- P2A6FAlternative Fuel Rail Pressure Regulator Inlet Pressure Too High
- P2A70Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit
- P2A71Alternative Fuel Hydraulic Fuel Pump Select Valve Control Range/Performance
- P2A73Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit High
- P2A74Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Intermittent/Erratic
- P2A75Alternative Fuel Hydraulic Pump Pressure Sensor Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.