Throttle Actuator Control Motor Circuit High
The P210D code indicates that the Powertrain Control Module (PCM) has detected a high voltage condition in the throttle actuator control motor circuit. This circuit controls the electronic throttle body, which regulates air intake into the engine. A high voltage reading suggests a short to power, a faulty actuator motor, or a problem with the PCM. This can cause the throttle to malfunction, leading to reduced engine power or a no-start condition.
1. Most Common Causes
- Faulty throttle actuator motor
- Short to power in the actuator circuit wiring
- Corroded or damaged connector at throttle body
- Failed PCM (rare)
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or limp mode
- Engine stalling or hesitation on acceleration
- No-start condition
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect throttle actuator wiring and connectors for damage or corrosion.
Step 3: Test throttle actuator motor resistance and compare to specs (typically 2-10 ohms).
Step 4: Check for shorts to power or ground in the actuator circuit using a multimeter.
Step 5: If wiring and motor are okay, test PCM output signals; replace PCM if necessary.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
No, it is not safe. The vehicle may enter limp mode, reducing power and increasing risk of stalling. Have it diagnosed immediately.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor. Throttle body replacement is often needed.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.