P2A64 code meaning
Alternative Fuel Tank C Level Sensor Circuit
Powertrain system Generic code P2Axx codes Check engine light
What P2A64 means
A third gas tank, C, may have its own level input, either a real float sender in an LPG vessel or, on CNG, a value the module derives from that tank's pressure, the way Ford's 2003 bi-fuel trucks turned tank pressure into a gauge reading. P2A64 reports that the tank C level circuit is faulty without saying whether the signal is too low or too high; P2A66 and P2A67 make that distinction. Even the gasoline-based code set ends at a second sender, so there is no conventional analogue for a third tank, and no manufacturer documents P2A64. The effect is mostly informational: the gauge or range shown may leave out tank C. Inspect the sender plug and its wiring run, which on rear-mounted tanks is often long and exposed.
P2A64 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2A64
- Check engine light
- Gauge or range leaves out tank C
- Otherwise normal driving
Common causes of P2A64
- Most likelyLong harness run to tank C damaged or plug loose
- PossibleTank C sender defective
- Less likelyFault in the tank C pressure input the level is derived from (CNG)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Alt fuel tank c level sensorWiring harnessAfcm
What each part of P2A64 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| A | Area: hybrid propulsion. |
| 64 | The exact fault in that area. |
What to do next
- Note P2A64 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2A64
What does P2A64 mean?
P2A64 means "Alternative Fuel Tank C Level Sensor Circuit". A third gas tank, C, may have its own level input, either a real float sender in an LPG vessel or, on CNG, a value the module derives from that tank's pressure, the way Ford's 2003 bi-fuel trucks turned tank pressure into a gauge reading. It is a generic code, so it means the same on every make.
Is it safe to drive with P2A64?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2A64 fail an emissions test?
Yes, it can. P2A64 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2A64 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2A64 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.