P2E03 code meaning
Gear Lever Position Sensor A Circuit High
Powertrain system Generic code P2Exx codes Check engine light
What P2E03 means
With P2E03 the module sees the signal of sensor A above the highest value the sensor can legitimately send. On a pulled-up input this happens when the signal wire is open; it also follows a short to the supply or a lost sensor ground. No manufacturer publishes P2E03. GM checks the same kind of fault axis by axis on the XT4 selector: P082C and P082F set when the duty cycle of X or Y sensor 1 rises above 95 % (19OBDG03D, 3 of 4 samples, Type B, MIL after two trips). GM's patent explains the consequence: a coordinate that fails makes that sensor's whole position signal invalid, and the module relies on the second sensor. P2E02 is the low side, P2E07 the same high fault on sensor B. CARB 1968.2 (e)(15) requires this two-sided check.
P2E03 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E03
- Warning lamp after two trips
- Shift-system message, ranges still selectable via sensor B
- Start or range change refused if both sensors are affected
Common causes of P2E03
- Most likelySignal wire of sensor A open at a connector
- PossibleSignal wire shorted to supply voltage
- PossibleGround of sensor A interrupted
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Gear lever position sensor aWiring harnessTCM
What each part of P2E03 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 03 | The exact fault in that area. |
What to do next
- Note P2E03 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 P2E03
What does P2E03 mean?
P2E03 means "Gear Lever Position Sensor A Circuit High". With P2E03 the module sees the signal of sensor A above the highest value the sensor can legitimately send. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E03?
Drive gently and only to a workshop. With P2E03 the car can go into limp mode (reduced power) to protect itself.
Will P2E03 fail an emissions test?
P2E03 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P2E03 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2E03 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.