P063E
Auto Configuration Throttle Input Not PresentP063E is a generic OBD-II powertrain diagnostic trouble code: Auto Configuration Throttle Input Not Present. It is logged by the engine control unit when the throttle monitor detects that a specific fault threshold has been exceeded — typically resulting in the malfunction-indicator lamp (MIL / check-engine light) being illuminated.
What P063E means
P063E is a generic OBD-II code meaning the engine control module did not find a throttle input signal during its auto-configuration routine. When the ignition is switched on, the module powers up and runs a set of self-tests and configuration checks before the engine is started. Part of that routine is confirming which inputs are actually present, so the module knows what hardware it is talking to and which control strategy to load. Throttle position is one of the key signals in that check, and P063E is stored when the expected throttle input is missing altogether.
The code sits in the P06xx control module group, alongside other auto-configuration codes, because it describes a failure of the module's start-up configuration process rather than an out-of-range reading from a working sensor. That distinction matters when diagnosing it: a throttle sensor that reads high or low will normally set a P0120-series code, whereas P063E indicates the module saw nothing on the circuit at all, which points towards an open circuit, a missing power or ground supply, a disconnected sensor, or a data message that never arrived.
Because the module builds its start-up and idle strategy on this configuration data, a stored P063E can leave auto-configuration disabled. That shows up as poor idle quality on start-up, unpredictable throttle response, or a fallback to a limited default strategy with reduced power. On drive-by-wire vehicles the throttle body is an actuator as well as a sensor, so one wiring fault can affect both directions.
Common causes
Most-frequently reported root causes when P063E is logged.
-
1
A disconnected or improperly seated throttle position sensor or throttle body connector.
-
2
An open circuit in the throttle position signal wire between the sensor and the engine control module.
-
3
A missing reference voltage or sensor ground supply to the throttle position sensor.
-
4
Corroded, spread or backed-out terminals in the throttle body or sensor connector.
-
5
A failed throttle position sensor or electronic throttle body that produces no output at all.
-
6
Chafed, rodent-damaged or badly repaired wiring in the engine harness near the throttle body.
-
7
A poor engine control module ground or unstable module supply voltage during key-on self-test.
-
8
Incorrect or incomplete module programming after a reflash, module swap or aftermarket tuning, so the expected input configuration does not match the fitted hardware.
Symptoms drivers notice
How to diagnose P063E
A typical diagnostic flow when this code is present.
-
1
Read all stored codes and freeze frame data, and note whether other throttle, pedal or module configuration codes are present alongside P063E.
-
2
Watch throttle position in live data with the ignition on and engine off, sweeping the pedal by hand, and note whether any signal appears at all.
-
3
Inspect the throttle body and throttle position sensor connectors for a loose fit, corrosion, water intrusion, bent or backed-out pins and damaged locking tabs.
-
4
Trace the throttle position signal, reference voltage and ground wires between the sensor and the module, looking for chafing, breaks, rodent damage and previous harness repairs.
-
5
Check that the sensor is receiving its reference voltage and has a good ground with the circuit connected, and check for voltage drop rather than relying on continuity alone.
-
6
Check the engine control module's own power feeds and ground connections, since a marginal module supply during key-on can cause the configuration check to fail.
-
7
Confirm the module is running the correct calibration for the fitted throttle hardware, and only after wiring, supplies and programming have been verified should the sensor, throttle body or module be considered faulty.
Related powertrain codes
- P0120 — Throttle Position Sensor/Switch A Circuit Malfunction
- P0121 — Throttle Position Sensor/Switch A Circuit Range/Performance Problem
- P0122 — Throttle Position Sensor/Switch A Circuit Low Input
- P0123 — Throttle Position Sensor/Switch A Circuit High Input
- P0124 — Throttle Position Sensor/Switch A Circuit Intermittent
- P0220 — Throttle/Pedal Position Sensor/Switch B Circuit Malfunction
Frequently asked questions
Can I keep driving with a P063E code?
Only cautiously and for short distances. The engine may idle badly, respond unpredictably to the pedal, or drop into a reduced power mode without warning, which is unsafe when pulling out into traffic. Get it looked at before making longer journeys.
Is P063E the same as a normal throttle position sensor code?
No. A standard throttle sensor code means the module is receiving a signal but the value is implausible. P063E means the module found no throttle input at all during its start-up configuration check, which points much more strongly at wiring, a connector, or a missing supply than at a drifting sensor.
Will this code fail an emissions test?
Yes. The code turns on the check engine light, and an illuminated MIL with stored codes fails any inspection that scans the OBD-II system. It may also prevent the readiness monitors from completing, which is a separate reason for rejection.
Is P063E expensive to fix?
Often it is not. A reconnected plug, a cleaned connector or a repaired broken wire is inexpensive. Costs rise if an electronic throttle body has to be replaced, or if the engine control module needs reprogramming to match the fitted hardware.
Disabling P063E in software
RaceTune can permanently disable P063E — and any other OBD-II diagnostic trouble code — on every ECU family we support. The monitor is disabled inside the ECU itself, so the fault stops being logged: the warning light stays off and the engine never enters limp mode for this code. The change is tied to your exact software version.
ECU families we can disable P063E on
We hold the DaVinci A2L disable definitions for these families, so the exact P063E path and mask addresses are mapped. verified marks a confirmed disable definition. We support many more — upload your file and our identifier will match it automatically.
- Bosch MG1CP002 verified
Software modifications affect emissions compliance and are not road-legal in many jurisdictions. RaceTune service files are intended for motorsport, off-road, and export use.
Got P063E in your scan?
Upload your ECU file — we'll identify the exact software version and confirm whether a disable is available for your car.
Upload your file