P2103 GMC Code - Throttle Actuator Control Motor Control Circuit High Voltage
Quick Answer
The Engine Control Module (ECM) is the control center for the throttle body Throttle Actuator Control (TAC) system. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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
- P2103 GMC indicates Throttle Actuator Control Motor Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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.
Code P2103 GMC Description
Two processors are also used to monitor the throttle body (TAC) motor system data. Both processors are located within the ECM. Both processors monitor each other's data to verify that the indicated throttle position is correct.
The Diagnostic Trouble Code (DTC) will set when the ECM detects a throttle actuator circuit that is shorted. The condition exists for 1 s.
What are the Possible Causes of the DTC P2103 GMC?
- Faulty Throttle Body Assembly
- Throttle Body Assembly harness is open or shorted
- Throttle Body Assembly circuit poor electrical connection
How to Fix the DTC P2103 GMC?
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 P2103 GMC 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 P2103 GMC Code
1. What does the OBDII code P2103 mean on a GMC vehicle?
P2103 indicates a high voltage condition in the Throttle Actuator Control (TAC) motor control circuit, which regulates the throttle plate's movement.
2. What are the common symptoms of a P2103 code in GMC vehicles?
Symptoms include reduced engine power, poor acceleration, an illuminated check engine light, and the vehicle potentially entering "limp mode."
3. What causes the P2103 code to appear?
Common causes include a faulty throttle actuator motor, damaged wiring or connectors in the TAC circuit, a malfunctioning throttle body, or issues with the engine control module (ECM).
4. Can I drive my GMC with a P2103 code?
Driving with a P2103 code is not recommended as the vehicle may experience reduced power or enter limp mode, potentially creating unsafe driving conditions.
5. How do you diagnose a P2103 code?
Mechanics typically check for damaged wiring or connectors in the TAC circuit, test the throttle actuator motor, inspect the throttle body, and verify proper ECM operation using a scan tool.
6. How do I fix a P2103 code on my GMC?
Repairs may involve replacing a faulty throttle actuator motor, repairing or replacing damaged wiring or connectors, cleaning or replacing the throttle body, or reprogramming or replacing the ECM.
7. Can a dirty throttle body cause the P2103 code?
Yes, a dirty or stuck throttle body can affect the throttle actuator's operation and trigger the P2103 code.
8. Is the P2103 code related to the throttle position sensor (TPS)?
While P2103 specifically refers to the throttle actuator motor circuit, issues with the TPS can sometimes coexist or contribute to throttle-related problems.
9. Will clearing the P2103 code fix the problem?
Clearing the code may temporarily turn off the check engine light, but the issue will likely return unless the underlying cause is repaired.
10. How much does it cost to fix a P2103 code on a GMC?
Repair costs vary depending on the issue, ranging from $100 for minor wiring repairs to over $500 for throttle body or ECM replacement.
Discuss the causes and fixes for P2103 GMC OBDII Code
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