Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Acura TL AutomaticFACTORY OEM SERVICE PROCEDURE
Electronic Throttle Control System
ELECTRONIC THROTTLE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P0122 | TP Sensor A Circuit Low Voltage |
| DTC P0123 | TP Sensor A Circuit High Voltage |
| DTC P0222 | TP Sensor B Circuit Low Voltage |
| DTC P0223 | TP Sensor B Circuit High Voltage |
| DTC P1683 | Throttle Valve Default Position Spring Performance Problem |
| DTC P1684 | Throttle Valve Return Spring Performance Problem |
| DTC P2101 | Throttle Actuator System Malfunction |
| DTC P2108 | Throttle Actuator Control Module Problem |
| DTC P2118 | Throttle Actuator Current Circuit Range/Performance Problem |
| DTC P2122 | APP Sensor A (Throttle Position Sensor D) Circuit Low Voltage (2004-2005 models) |
| DTC P2122 | APP Sensor A (Throttle Position Sensor D) Circuit Low Voltage (2006 model) |
| DTC P2123 | APP Sensor A (Throttle Position Sensor D) Circuit High Voltage (2004-2005 models) |
| DTC P2123 | APP Sensor A (Throttle Position Sensor D) Circuit High Voltage (2006 model) |
| DTC P2127 | APP Sensor B (Throttle Position Sensor E) Circuit Low Voltage (2004-2005 models) |
| DTC P2127 | APP Sensor B (Throttle Position Sensor E) Circuit Low Voltage (2006 model) |
| DTC P2128 | APP Sensor B (Throttle Position Sensor E) Circuit High Voltage (2004-2005 models) |
| DTC P2128 | APP Sensor B (Throttle Position Sensor E) Circuit High Voltage (2006 model) |
| DTC P2135 | TP Sensor A/B Voltage Incorrect Correlation |
| DTC P2138 | APP Sensor A/B (Throttle Position Sensor D/E) Incorrect Voltage Correlation |
| DTC P2176 | Throttle Actuator Control System Idle Position Not Learned |
| DTC P2552 | Throttle Actuator Control Module Relay Malfunction (2004-2005 models) |
| DTC P2552 | Throttle Actuator Control Module Relay Malfunction (2006 model) |
| DTC U0107 | Lost Communication With Throttle Actuator Control Module (2004-2005 models) |
| DTC U0107 | Lost Communication With Throttle Actuator Control Module (2006 model) |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.