2007 Honda Fit Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Electronic Throttle Control DTCS

ELECTRONIC THROTTLE CONTROL DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
P0122 TP Sensor A Circuit Low Voltage
P0123 TP Sensor A Circuit High Voltage
P0222 TP Sensor B Circuit Low Voltage
P0223 TP Sensor B Circuit High Voltage
P1683 Throttle Valve Default Position Spring Performance Problem
P1684 Throttle Valve Return Spring Performance Problem
P2101 Throttle Actuator System Malfunction
P2108 Throttle Actuator Control Module Problem
P2118 Throttle Actuator Current Range/Performance Problem
P2122 APP Sensor A (TP Sensor D) Circuit Low Voltage
P2123 APP Sensor A (TP Sensor D) Circuit High Voltage
P2127 APP Sensor B (TP Sensor E) Circuit Low Voltage
P2128 APP Sensor B (TP Sensor E) Circuit High Voltage
P2135 TP Sensor A/B Incorrect Voltage Correlation
P2138 APP Sensor A/B (TP Sensor D/E) Incorrect Voltage Correlation
P2176 Throttle Actuator Control System Idle Position Not Learned
P2552 Throttle Actuator Control Module Relay Malfunction
DTC U0107 Lost Communication With Throttle Actuator Control Module
Factory Service Tools

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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.