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Keyless Access System Touch Sensor Circuit

  1. Keyless access system check

    -1. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter HISTORY DATA.

    History data/Clear

    2. Select HISTORY CLEAR, and back to TEST MODE menu:

    NOTE: When the freeze data is cleared, the information indicates "NOT CONFIRMED".
    • DRIVER DOOR UNLOCK SWITCH
    • DRIVER DOOR LOCK SWITCH
    • FRONT PASSENGER DOOR UNLOCK SWITCH
    • FRONT PASSENGER DOOR LOCK SWITCH

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

    -4. Get out of the vehicle with the keyless remote, and touch the touch sensor (unlock) and the lock sensor on each door outer handle.

    -5. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter HISTORY DATA.

    History data/Clear

    6. Recheck HISTORY DATA.

    • DRIVER DOOR UNLOCK SWITCH
    • DRIVER DOOR LOCK SWITCH
    • FRONT PASSENGER DOOR UNLOCK SWITCH
    • FRONT PASSENGER DOOR LOCK SWITCH

    Is all the information OK?

    YES 

    Intermittent failure, the system is OK at this time.

    NO 

    Go to step 2.

  2. Open wire check (GND line)

    -1. Disconnect the following connectors.

    Each door outer handle 8P connector

    -2. Check for continuity between test points 1 and 2 individually.

    Driver's door 

    Test condition Vehicle OFF (LOCK) mode
    Driver's door outer handle 8P connector: disconnected
    Test point 1 Driver's door outer handle 8P connector (female terminals) No. 8:
    Test point 2 Body ground

    Front passenger's door 

    Test condition Vehicle OFF (LOCK) mode
    Front passenger's door outer handle 8P connector: disconnected
    Test point 1 Front passenger's door outer handle 8P connector (female terminals) No. 8:
    Test point 2 Body ground
    GHH387958Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The GND wires are OK. Go to step 3.

    NO 

    Repair an open or high resistance in the ground wire or poor ground (G403, G404).

  3. Determine possible failure area (TS and DL lines, VOUT lines)

    -1. Measure the voltage between test points 1 and 2 individually.

    Driver's door 

    Test condition Vehicle OFF (LOCK) mode
    Driver's door outer handle 8P connector: disconnected
    Test point 1 Driver's door outer handle 8P connector (female terminals) No. 4:
    Test point 2 Body ground

    Front passenger's door 

    Test condition Vehicle OFF (LOCK) mode
    Front passenger's door outer handle 8P connector: disconnected
    Test point 1 Front passenger's door outer handle 8P connector (female terminals) No. 4:
    Test point 2 Body ground
    GHH387961Courtesy of HONDA, U.S.A., INC.

    Is there battery voltage?

    YES 

    Go to step 4.

    NO 

    Go to step 7.

  4. Open wire check (TS lines, DL lines)

    -1. Disconnect the following connector.

    Body control module connector C (66P)

    -2. Check for continuity between test points 1 and 2 individually.

    Driver's door 

    Test condition Vehicle OFF (LOCK) mode
    Driver's door outer handle 8P connector: disconnected
    Body control module connector C (66P): disconnected
    Test point 1 Driver's door outer handle 8P connector (female terminals) No. 3:
    Test point 2 Body control module connector C (66P) No. 7
    Test point 1 Driver's door outer handle 8P connector (female terminals) No. 7:
    Test point 2 Body control module connector C (66P) No. 10

    Front passenger's door 

    Test condition Vehicle OFF (LOCK) mode
    Front passenger's door outer handle 8P connector: disconnected
    Body control module connector C (66P): disconnected
    Test point 1 Front passenger's door outer handle 8P connector (female terminals) No. 3:
    Test point 2 Body control module connector C (66P) No. 22
    Test point 1 Front passenger's door outer handle 8P connector (female terminals) No. 7:
    Test point 2 Body control module connector C (66P) No. 25
    GHH387966Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The TS and DL wires are not open. Go to step 5.

    NO 

    Repair an open or high resistance in the wire.

  5. Shorted wire check (TS lines, DL lines)

    -1. Check for continuity between test points 1 and 2 individually.

    Test condition Vehicle OFF (LOCK) mode
    Each door outer handle 8P connector: disconnected
    Body control module connector C (66P): disconnected
    Test point 1 Body control module connector C (66P) No. 7
    Test point 2 Body ground
    Test point 1 Body control module connector C (66P) No. 10
    Test point 2 Body ground
    Test point 1 Body control module connector C (66P) No. 22
    Test point 2 Body ground
    Test point 1 Body control module connector C (66P) No. 25
    Test point 2 Body ground

    Is there continuity?

    YES 

    Repair a short to ground in the wire.

    NO 

    The TS and DL wires are OK. Go to step 6.

  6. Door outer handle touch sensor check

    -1. Substitute a known-good door outer handle , and recheck.

    Is the system OK?

    YES 

    Faulty the original door outer handle; replace the door outer handle .

    NO 

    Replace the body control module .

  7. Open wire check (VOUT lines)

    -1. Disconnect the following connector.

    Body control module connector C (66P)

    -2. Check for continuity between test points 1 and 2 respectively.

    Test condition Vehicle OFF (LOCK) mode
    Body control module connector C (66P): disconnected
    Each door outer handle 8P connector: disconnected
    Test point 1 Body control module connector C (66P) No. 6
    Test point 2 Driver's door outer handle 8P connector (female terminals) No. 4:
    Test point 1 Body control module connector C (66P) No. 4
    Test point 2 Front passenger's door outer handle 8P connector (female terminals) No. 4:
    GHH387969Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The VOUT wire are not open. Go to step 8.

    NO 

    Repair an open or high resistance in the wire.

  8. Shorted wire check (VOUT lines)

    -1. Check for continuity between test points 1 and 2 respectively.

    Driver's door 

    Test condition Vehicle OFF (LOCK) mode
    Driver's door outer handle 8P connectors: disconnected
    Body control module connector C (66P): disconnected
    Test point 1 Body control module connector C (66P) No. 6
    Test point 2 Body ground

    Front passenger's door 

    Test condition Vehicle OFF (LOCK) mode
    Front passenger's door outer handle 8P connectors: disconnected
    Body control module connector C (66P): disconnected
    Test point 1 Body control module connector C (66P) No. 4
    Test point 2 Body ground

    Is there continuity?

    YES 

    Repair a short to ground in the wire.

    NO 

    The VOUT wires are OK. Replace the body control module .

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