P2101
High SeverityThrottle Actuator Control Motor Circuit Range/Performance
Fuel System
P2101 — Instant Answer
Throttle Actuator Control Motor Circuit Range/Performance
Severity: HIGH SEVERITY
Meaning: The electronic throttle motor is not responding as expected.
Safe to drive? NO if CEL is flashing. YES with caution if solid, but repair this week.
Estimated repair cost: $10 - $250
Most common causes:
- 1. Failed throttle body motor (35-45% of cases)
- 2. Carbon buildup preventing movement (10-25% of cases)
- 3. Wiring issue (10-25% of cases)
Symptoms
- ⚠️Reduced power mode
- ⚠️Check engine light
- ⚠️No throttle response
Related Symptoms
Common Causes
How to Diagnose P2101
- 1Clean throttle body
- 2Check wiring
- 3Replace throttle body
OEM Procedures for P2101
P2101 affects the Throttle Body. Found 27 OEM service manual procedures.
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal (Tracker)
Remove/Install/Overhaul - Removal, Overhaul & Installation (Metro)
Remove/Install/Overhaul - Removal, Overhaul & Installation (Metro)
Showing 8 of 27 procedures
OEM Diagnostic Flowchart
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Parts & Tools for This Job
Common parts shoppers buy for P2101 Throttle Actuator Control Motor Circuit Range/Performance.
Oxygen Sensor
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Spark Plugs
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Ignition Coils
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Mass Air Flow Sensor
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Fuel Injectors
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Engine Oil
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OBD2 scanner
Read codes and freeze-frame data before you guess at the fault.
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Check SpecificationsBattery tester
Check cranking and charging health before replacing expensive parts.
A weak battery can mimic alternator or starter problems.
Check SpecificationsMultimeter kit
Confirm voltage, continuity, and sensor power with one simple kit.
A meter is the cheapest way to rule out a bad circuit fast.
Check SpecificationsRelated Resources
Repair guides, symptom pages, and wiring diagrams related to P2101.
OEM Manual Evidence
Browse →Mil Comes On With DTC P2101 (15-010) — 2013 Acura MDX 3.7L Eng VIN 2 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagi...
Mil Comes On With DTC P2101 (15-010) — 2013 Acura MDX 3.7L Eng VIN 2 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagi...
Electronic Throttle Control DTCS — 2013 Acura MDX 3.7L Eng VIN 2 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined...
Electronic Throttle Control DTCS — 2013 Acura MDX 3.7L Eng VIN YD2 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagine...
Related Symptoms
Browse →Frequently Asked Questions
- Can cleaning fix P2101?
- Sometimes — heavy carbon can prevent the throttle plate from moving smoothly. Try cleaning first.
- What is drive-by-wire?
- Modern vehicles use an electric motor instead of a cable to control the throttle. P2101 means this motor is not working correctly.
Find your service manual
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Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-11-07