Electrical
Code P0123
Throttle Position Sensor High Input
Plain English Meaning:Throttle signal too high
⚠️
Yellow: Drive with Caution
Unpredictable throttle
P0123 Symptoms
- •Erratic acceleration
Most Common Causes of P0123
1TPS fault wiring issue
P0123 Repair Playbook
Required Mechanic Tests
A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:
Check voltage
Typical Fix Paths & Estimated Costs
Replace TPS $100–$300
Fair Pricing Guides
Check our database for average parts, labor, and expected repair costs before heading to a mechanic.