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Driver's door lock knob switch circuit troubleshooting

  1. Turn the ignition switch to ON (II).
  2. With the driver's door lock knob switch in LOCK position, select SECURITY with the HDS, and enter the DATA LIST.
  3. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

    Is data list value indicated ON? 

    YES  -Go to step  4.

    NO  -Go to step  8.

  4. Disconnect the driver's door lock actuator/knob switch 10P connector.
  5. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

    Is data list value indicated OFF? 

    YES  -Faulty driver's door lock knob switch; replace the door latch (see DOOR LATCH REPLACEMENT ).

    NO  -Go to step  6.

  6. Disconnect under-dash fuse/relay box connector F(12P).
  7. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

    Is data list value indicated OFF? 

    YES  -Repair a short to ground in the wire.

    NO  -Faulty MICU; replace the under-dash fuse/relay box.

  8. Disconnect the driver's door lock actuator/knob switch 10P connector.
  9. Connect driver's door lock actuator/knob switch 10P connector terminal No. 8 and body ground with a jumper wire.
    Fig 1: Connecting Driver's Door Lock Actuator/Knob Switch 10P Connector Terminal No. 8 And Body Ground With Jumper Wire
    G06953893Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

    Is data list value indicated ON? 

    YES  -Go to step  11.

    NO  -Go to step  12.

  11. Check for continuity between driver's door lock actuator/knob switch 10P connector terminal No. 10 and body ground.
    Fig 2: Checking Continuity Between Driver's Door Lock Actuator/Knob Switch 10P Connector Terminal No. 10 And Body Ground
    G06953894Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Faulty driver's door lock knob switch; replace the door latch (see DOOR LATCH REPLACEMENT ).

    NO  -Repair an open or high resistance in the wire or poor ground (G501).

  12. Connect under-dash fuse/relay box connector F (12P) terminal No. 5 and body ground with a jumper wire.
    Fig 3: Connecting Under-Dash Fuse/Relay Box Connector F (12P) Terminal No. 5 And Body Ground With Jumper Wire
    G06953895Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

    Is data list value indicated ON? 

    YES  -Repair an open or high resistance in the wire.

    NO  -Faulty MICU; replace the under-dash fuse/relay box.

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