P073D code meaning
Unable to Engage Neutral
Powertrain system Generic code P07xx codes Check engine light
What P073D means
P073D means neutral is commanded but not reached or not held. GM uses it on vehicles with electronic gear selection (shift-by-wire, e.g. Cadillac XT4): the selector or engine module compares commanded and actual range from the range sensor and flags it after 1.8–2 s in the selector module or 10 s in the engine module, after two trips. For Ford's 6F35 the supplier Sonnax describes a mechanical cause: a forward or direct clutch dragging in neutral, visible as turbine speed staying only 200–400 rpm below engine speed. The car may creep in N; range changes may be locked. The opposite, stuck in neutral, is P072A.
P073D at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 12 hours
- Clears after repairAfter a drive cycle
Symptoms of P073D
- Vehicle creeps in N or engine is loaded when shifting to N
- N selection not accepted, warning message
- Harsh engagement N to D/R (6F35)
- Check engine light after two trips (GM)
Common causes of P073D
- Most likelyFord 6F35: forward or direct clutch dragging (balance piston, plates, seal)
- PossibleShift-by-wire: range actuator or park module, range sensor or its calibration
- PossibleValve body (manual valve, missing check ball, sticking solenoid)
- Less likelyCAN communication or control module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Transmission range selectorTransmission range sensorTransmission clutchesTransmission control module
What each part of P073D means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 7 | Area: transmission. |
| 3D | The exact fault in that area. |
What to do next
- Note P073D 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 P073D
What does P073D mean?
P073D means "Unable to Engage Neutral". P073D means neutral is commanded but not reached or not held. It is a generic code, so it means the same on every make.
Is it safe to drive with P073D?
Drive gently and only to a workshop. With P073D the car can go into limp mode (reduced power) to protect itself.
Will P073D fail an emissions test?
Yes, it can. P073D 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 P073D to fix?
Difficulty: hard. A typical repair takes 1 to 12 hours of work. This is a job for a workshop.
Will P073D clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.