OBD-II code · Powertrain (generic, extended)
P2A73 Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit High
The control circuit of the alternative fuel hydraulic fuel pump select valve reports a control circuit high condition. Pump path selection cannot be commanded reliably.
Is it safe to drive with P2A73?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to B+
- PossibleOpen 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
- P2A70Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit
- P2A71Alternative Fuel Hydraulic Fuel Pump Select Valve Control Range/Performance
- P2A72Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Low
- P2A74Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Intermittent/Erratic
- P2A75Alternative Fuel Hydraulic Pump Pressure Sensor Circuit
- P2A76Alternative Fuel Hydraulic Pump Pressure Sensor Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.