P2100 Infiniti Code - Throttle Control Motor Relay Circuit Open
Quick Answer
The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor Relay, Throttle Actuator Control Motor Relay harness is open. 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
- P2100 Infiniti indicates Throttle Control Motor Relay Circuit Open.
- Common causes
- Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor Relay, Throttle Actuator Control Motor Relay harness is open.
- 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.
Code P2100 Infiniti Description
What are the Possible Causes of the DTC P2100 Infiniti?
- Dirty throttle body
- Faulty Throttle Actuator Control Motor Relay
- Throttle Actuator Control Motor Relay harness is open
- Throttle Actuator Control Motor Relay circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2100 Infiniti?
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 P2100 Infiniti 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.
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Frequently Asked Questions about P2100 Infiniti Code
1. What does the OBDII code P2100 mean on an Infiniti?
P2100 indicates that the Engine Control Module (ECM) has detected an open circuit in the throttle control motor relay circuit.
2. What are common symptoms of a P2100 code on an Infiniti?
Symptoms may include reduced engine performance, the throttle not responding to input, the Check Engine Light turning on, and possibly the vehicle entering limp mode.
3. What causes the P2100 code on an Infiniti?
Common causes include a faulty throttle control motor relay, damaged wiring or connectors in the throttle control circuit, a failed throttle body, or a malfunctioning ECM.
4. Can I drive my Infiniti with a P2100 code?
Driving with a P2100 code is not recommended as it may lead to limited throttle response, reduced power, or unsafe driving conditions.
5. How do I diagnose a P2100 code on an Infiniti?
Diagnosis involves inspecting the throttle control motor relay, checking wiring and connectors for damage, testing the throttle body, and verifying the ECM's functionality.
6. How do I fix the P2100 code on my Infiniti?
Repairs may include replacing the throttle control motor relay, repairing or replacing damaged wiring, cleaning or replacing the throttle body, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to fix a P2100 code on an Infiniti?
Repair costs vary depending on the issue, ranging from $100 for simple wiring repairs to $800 or more for throttle body or ECM replacement.
8. Can a dirty throttle body cause a P2100 code on an Infiniti?
While a dirty throttle body is not a direct cause of P2100, it can contribute to throttle-related issues that may trigger related codes.
9. Is there a quick way to reset the P2100 code on an Infiniti?
Clearing the code with an OBDII scanner can reset it temporarily, but the underlying issue must be addressed to prevent the code from returning.
10. Does the P2100 code on an Infiniti affect fuel efficiency?
Yes, a P2100 code can reduce fuel efficiency as the engine may run in a restricted mode, leading to suboptimal performance.
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