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HOMESERVICE MANUALSHONDA2002CIVIC SIREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 52 (HEATING/AIR CONDITIONING SYSTEM)DTC TROUBLESHOOTINGDTC 2: A PROBLEM IN THE MODE CONTROL MOTOR CIRCUIT
2002 Honda Civic Si

DTC 2: A Problem in the Mode Control Motor Circuit

2002 Honda Civic SiSECTION DTC 2: A Problem in the Mode Control Motor Circuit
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Honda Odyssey, 2003 Honda Odyssey, 2002 Honda Odyssey, 2001 Honda Odyssey, and 2000 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the mode control motor 7P connector.
  2. Test the mode control motor (see Mode Control Motor Test  ).

    Is the mode control motor OK ? 

    1. YES  - Go to step 3.
    2. NO  - Go to step  8.
  3. Disconnect the heater control panel 22P connector.
  4. Check for continuity between body ground and the heater control panel 22P connector terminals No. 6, 7, 8, 14, 15, 17 and 18 individually.
    Fig 1: Checking Continuity Between Body Ground & Heater Control Panel 22P Connector Terminals No. 6, 7, 8, 14, 15, 17 & 18 Individually.
    G01519923Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  - Repair any short to body ground in the wire(s) between the heater control panel and the mode control motor.
    2. NO  - Go to step 5.
  5. Turn the ignition switch ON (II), and check the same terminals for voltage
    Fig 2: Turning Ignition Switch ON (II) & Checking Same Terminals For Voltage
    G01519924Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there any voltage? 

    1. YES  - Repair any short to power in the wire(s) between the heater control panel and the mode control motor. This short may also damage the heater control panel. Repair the short to power before replacing the heater control panel.
    2. NO  - Go to step 6.
  6. Turn the ignition switch off.
  7. Check for continuity between following terminals of the heater control panel 22P connector and the mode control motor 7P connector.
    Fig 3: Checking Continuity Between Following Terminals Of Heater Control Panel 22P Connector & Mode Control Motor 7P Connector
    G01519925Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  - Check for loose wires or poor connections at the heater control panel 22P connector and at the mode control motor 7P connector. If the connections are good substitute a known-good heater control panel, and recheck. If the symptom/indication goes away, replace the original heater control panel.
    2. NO  - Repair any open in the wire(s) between the heater control panel and mode control motor.
  8. Remove the mode control motor (see Mode Control Motor Test  ).
  9. Check the mode control linkage and doors for smooth movement.

    Do the mode control linkage and doors move smoothly? 

    1. YES  - Replace the mode control motor.
    2. NO  - Repair the mode control linkage or doors.
RENDER: 1.0x

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