AutoCodes – Generic – P1222

P1222 Code - Throttle Motor Circuit

Quick Answer

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Faulty Throttle Motor, Throttle Motor harness is open or shorted, Throttle Motor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1222 indicates Throttle Motor Circuit.
Common causes: Common causes include Faulty Throttle Motor, Throttle Motor harness is open or shorted, Throttle Motor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 38,060

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 11, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1222 Description

The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. The fully open condition of the throttle valve is detected by the diesel throttle position switch, which is mounted on the throttle body. If this Diagnostic Trouble Code (DTC) is stored, the Engine Control Module shuts down the power for the throttle control motor.

OBDII Code P1222 - Throttle Motor Circuit - AutoCodes.com — P1222 Code - Throttle Motor Circuit

What does this mean?

What are the Possible Causes of the DTC P1222?

Faulty Throttle Motor
Throttle Motor harness is open or shorted
Throttle Motor circuit poor electrical connection
Faulty Throttle Valve
Faulty Throttle Drive Gear

How to Fix the DTC P1222?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1222 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1222 code?

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Need Help with the Code?

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Information for Specific Makes

P1222 Audi — Cylinder Shut Off Exhaust Valves Short To B+
P1222 BMW — Pedal Position Sensor 2 Low Input
P1222 Buick — Injector Control Circuit 1 Intermittent
P1222 Cadillac — Injector Control Circuit 1 Intermittent
P1222 Chevrolet — Injector Control Circuit 1 Intermittent
P1222 Chrysler — Leak Detection During Motoring
P1222 Dodge — Leak Detection During Motoring
P1222 Ford — Traction Control Output Circuit Malfunction
P1222 GMC — Injector Control Circuit 1 Intermittent
P1222 Jeep — Leak Detection During Motoring
P1222 Lincoln — Traction Control Output Circuit Malfunction
P1222 MINI — Pedal Position Sensor 2 Low Input
P1222 Toyota — Throttle Motor Circuit
P1222 Volkswagen — Cylinder Shut Off Exhaust Valves Short To B+

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.