Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Subaru >> 2012 >> Impreza Base, 4D Sedan, Standard Trans >> Repair and Diagnosis >> Quick Lookups >> DTC Index (Except WRX-STI) >> Tire Pressure Monitoring System DTCS

Tire Pressure Monitoring System DTCS

TIRE PRESSURE MONITORING SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION

DTC Item Contents of diagnosis Remarks
C2021 Tire 1 Air Pressure Decrease Tire pressure of tire 1 is reduced. Refer to DTC C2021 TIRE 1 AIR PRESSURE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2022 Tire 2 Air Pressure Decrease Tire pressure of tire 2 is reduced. Refer to DTC C2022 TIRE 2 AIR PRESSURE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2023 Tire 3 Air Pressure Decrease Tire pressure of tire 3 is reduced. Refer to DTC C2023 TIRE 3 AIR PRESSURE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2024 Tire 4 Air Pressure Decrease Tire pressure of tire 4 is reduced. Refer to DTC C2024 TIRE 4 AIR PRESSURE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2121 Transmitter 1 No Data Data cannot be received from transmitter 1. Refer to DTC C2121 TRANSMITTER 1 NO DATA , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2122 Transmitter 2 No Data Data cannot be received from transmitter 2. Refer to DTC C2122 TRANSMITTER 2 NO DATA , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2123 Transmitter 3 No Data Data cannot be received from transmitter 3. Refer to DTC C2123 TRANSMITTER 3 NO DATA , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2124 Transmitter 4 No Data Data cannot be received from transmitter 4. Refer to DTC C2124 TRANSMITTER 4 NO DATA , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2221 Transmitter 1 Pressure Data Abnormal Transmitter 1 data contents are abnormal. Refer to DTC C2221 TRANSMITTER 1 PRESSURE DATA ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2222 Transmitter 2 Pressure Data Abnormal Transmitter 2 data contents are abnormal. Refer to DTC C2222 TRANSMITTER 2 PRESSURE DATA ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2223 Transmitter 3 Pressure Data Abnormal Transmitter 3 data contents are abnormal. Refer to DTC C2223 TRANSMITTER 3 PRESSURE DATA ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2224 Transmitter 4 Pressure Data Abnormal Transmitter 4 data contents are abnormal. Refer to DTC C2224 TRANSMITTER 4 PRESSURE DATA ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2321 Transmitter 1 Function Code Abnormal Function code has error. Refer to DTC C2321 TRANSMITTER 1 FUNCTION CODE ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2322 Transmitter 2 Function Code Abnormal Function code has error. Refer to DTC C2322 TRANSMITTER 2 FUNCTION CODE ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2323 Transmitter 3 Function Code Abnormal Function code has error. Refer to DTC C2323 TRANSMITTER 3 FUNCTION CODE ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2324 Transmitter 4 Function Code Abnormal Function code has error. Refer to DTC C2324 TRANSMITTER 4 FUNCTION CODE ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2421 Transmitter 1 Battery Voltage Decrease Transmitter battery voltage is low. Refer to DTC C2421 TRANSMITTER 1 BATTERY VOLTAGE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2422 Transmitter 2 Battery Voltage Decrease Transmitter battery voltage is low. Refer to DTC C2422 TRANSMITTER 2 BATTERY VOLTAGE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2423 Transmitter 3 Battery Voltage Decrease Transmitter battery voltage is low. Refer to DTC C2423 TRANSMITTER 3 BATTERY VOLTAGE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2424 Transmitter 4 Battery Voltage Decrease Transmitter battery voltage is low. Refer to DTC C2424 TRANSMITTER 4 BATTERY VOLTAGE DECREASE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
C2521 Vehicle Speed Is Abnormal Vehicle speed signal is not input to the control module when the vehicle speed is 6 km/h (3.7 MPH) or more. Refer to DTC C2521 VEHICLE SPEED IS ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC).