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Home >> Honda >> 2021 >> Odyssey EX >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> TPMS - Diagnostics >> Troubleshooting >> DTC Troubleshooting: C1801-55, C1802-55, C1803-55, C1804-55

DTC Troubleshooting: C1801-55, C1802-55, C1803-55, C1804-55

DTC C1801-55  : Right-Front Tire Pressure Sensor ID Registration Error DTC C1802-55  : Left-Front Tire Pressure Sensor ID Registration Error DTC C1803-55  : Right-Rear Tire Pressure Sensor ID Registration Error DTC C1804-55  : Left-Rear Tire Pressure Sensor ID Registration Error

NOTE: 

DTC Description DTC
C1801-55 Right-Front Tire Pressure Sensor ID Registration Error  
C1802-55 Left-Front Tire Pressure Sensor ID Registration Error  
C1803-55 Right-Rear Tire Pressure Sensor ID Registration Error  
C1804-55 Left-Rear Tire Pressure Sensor ID Registration Error  

DTC (TPMS)

  1. Wheel check

    -1. Turn the vehicle to the ON mode.

    -2. Check the wheels for TPMS type tire pressure sensor are mounted on the DTC located on.

    DTC Tire Location
    C1801-55 Right-front
    C1802-55 Left-front
    C1803-55 Right-rear
    C1804-55 Left-rear

    Are TPMS type wheels mounted on the vehicle?

    YES 

    Go to step 2.

    NO 

    Install a TPMS type wheel, and memorize the tire pressure sensor ID. Drive the vehicle above 15 mph (24 km/h) continuously for 40 seconds, or memorize the sensor ID with the HDS .

  2. System check

    -1. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

    -2. Do the INITIATOR OPERATION CHECK in the FUNCTIONAL TESTS with the HDS.

    Initiator Operation Check

    NOTE:  If NG is shown, turn the vehicle to the OFF (LOCK) mode, rotate the tire 1/4 turn, then turn the vehicle to the ON mode, and try again. If NG is still displayed, repeat this procedure until OK is shown.

    Is OK indicated within one full turn of the tire?

    YES 

    Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting .

    NO 

    Go to step 3.

  3. Tire pressure sensor check

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Substitute a wheel with a known-good tire pressure sensor on the vehicle .

    -3. To memorize the tire pressure sensor ID, drive the vehicle above 15 mph (24 km/h) for 40 continuous seconds, or memorize the sensor ID with the HDS .

    -4. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

    -5. Do the INITIATOR OPERATION CHECK in the FUNCTIONAL TESTS with the HDS.

    Initiator Operation Check

    NOTE:  If NG is shown, turn the vehicle to the OFF (LOCK) mode, rotate the tire 1/4 turn, then turn the vehicle to the ON mode, and try again. If NG is still displayed, repeat this procedure until OK is shown.

    Is OK indicated within one full turn of the tire?

    YES 

    Replace the tire pressure sensor on the original wheel .

    NO 

    Go to step 4.

  4. LF antenna/initiator check

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Substitute a LF antenna/initiator from a known-good location on the current vehicle, or from another known-good vehicle.

    -3. Turn the vehicle to the ON mode.

    -4. Do the INITIATOR OPERATION CHECK in the FUNCTIONAL TESTS with the HDS.

    Initiator Operation Check

    NOTE:  If NG is shown, turn the vehicle to the OFF (LOCK) mode, rotate the tire 1/4 turn, then turn the vehicle to the ON mode, and try again. If NG is still displayed, repeat this procedure until OK is shown.

    Is OK indicated within one full turn of the tire?

    YES 

    Replace the appropriate LF antenna/initiator .

    NO 

    Check for loose terminals and poor connections in the body control module connectors. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the body control module .