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Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 82 (Real Time AWD Control Unit - Diagnostics (Hybrid)) >> Troubleshooting >> DTC C1870-00, C1872-00

DTC C1870-00, C1872-00

WARNING: This page is about a different variant/trim than selected.

DTC C1870-00  : (The Functional Abnormalities of Fuel and Emissions)

DTC C1872-00  : (The Functional Abnormalities of VSA Modulator-Control Unit)

NOTE:  Before you troubleshoot, review the General Troubleshooting Information .

DTC Description DTC Freeze Frame
C1870-00 (The Functional Abnormalities of Fuel and Emissions)    
C1872-00 (The Functional Abnormalities of VSA Modulator-Control Unit)    

DTC (Real Time AWD)

  1. Problem verification (DTC check)

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Turn the vehicle to the OFF (LOCK) mode.

    -4. Enter the maintenance mode and start the engine .

    Check for DTCs with the HDS.

    NOTE:  These codes are stored whenever the following systems DTCs are detected.

    • When DTC C1870-00 is indicated, check the PGM-FI system and CVT system DTC.
    • When DTC C1872-00 is indicated, check the VSA system DTC.
    DTC Description DTC Freeze Frame
    C1870-00 (The Functional Abnormalities of Fuel and Emissions)    
    C1872-00 (The Functional Abnormalities of VSA Modulator-Control Unit)    

    Is DTC C1870-00 and/or C1872-00 indicated?

    DTC C1870-00 is indicated

    The failure is duplicated. Check the PGM-FI system DTC .

    DTC C1872-00 is indicated

    The failure is duplicated. Check the VSA system DTC .

    DTC is not indicated

    Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.