P212D — Throttle Position Sensor/Switch G Circuit High

What Does P212D Mean?

P212D is a diagnostic trouble code indicating: Throttle Position Sensor/Switch G Circuit High. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P212D

⚠️ Check Engine Light (MIL) illuminated
⚠️ Throttle Position Sensor/Switch G reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ Reduced engine performance

Common Causes

🔍 Short to voltage in Throttle Position Sensor/Switch G wiring harness
🔍 Corroded or water-damaged Throttle Position Sensor/Switch G connector
🔍 Faulty Throttle Position Sensor/Switch G outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does P212D mean?

P212D indicates: Throttle Position Sensor/Switch G Circuit High. The vehicle's computer has detected that the Throttle Position Sensor/Switch G is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P212D?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P212D for extended periods may cause additional problems.

How much does it cost to fix P212D?

Repair costs for P212D typically range from $20 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair Throttle Position Sensor/Switch G wiring for short to voltage
🔧 Clean or replace corroded Throttle Position Sensor/Switch G connector
🔧 Replace faulty Throttle Position Sensor/Switch G

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P212D: Throttle Position Sensor/Switch G Circuit High