Throttle Input Not Present - Auto Configuration Failure
The P063E code indicates that the Engine Control Module (ECM) has detected a missing or invalid throttle input signal during the automatic configuration process. This typically occurs when the ECM attempts to learn the throttle position sensor (TPS) range or perform a throttle body relearn, but the signal from the throttle pedal position sensor or throttle body is absent or out of expected range. Common causes include a faulty throttle position sensor, wiring issues, a malfunctioning throttle actuator, or a failed ECM. This code often appears after battery disconnection, ECM replacement, or throttle body cleaning.
1. Most Common Causes
- Faulty or out-of-calibration throttle position sensor (TPS)
- Open or short circuit in the throttle sensor wiring
- Corroded or loose terminals in the sensor or PCM connector
- Defective electronic throttle body
- Internal PCM failure or outdated software
- Issues with the reference voltage (VREF) supply to the sensor
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or limp mode
- Poor acceleration or hesitation
- Idle instability or stalling
- Throttle pedal unresponsive or erratic
3. Step-by-Step Diagnosis
Step 1: Scan for additional codes and freeze frame data to identify related issues.
Step 2: Visually inspect throttle body, pedal position sensor, and wiring for damage or corrosion.
Step 3: Test throttle position sensor and pedal position sensor voltages with a multimeter per manufacturer specs.
Step 4: Perform throttle body relearn procedure using a scan tool or following vehicle-specific steps.
Step 5: If relearn fails, check for ECM communication and consider reprogramming or replacement.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
No, it is not safe. The vehicle may enter limp mode with reduced power, increasing the risk of accidents. Have it diagnosed and repaired immediately.
How much does it cost to fix?▼
Diagnosis typically costs $50-$150. Repairs can range from $100 for a sensor replacement to $500+ for ECM reprogramming or replacement.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.