Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the door outer handle touch sensor or lock switch, but will unlock or lock with the keyless remote

NOTE:  Before troubleshooting, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box is OK.

• 1. Keyless access system check 1:

  - 1. Turn the vehicle to the ON mode.

  Does the system change to ON mode?

  YES 

  Go to step 2.

  NO 

  Go to Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch 

• 2. Keyless access DTC check:

  - 1. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, then enter SELF CHECK.

  ONE-PUSH START - KEYLESS ACCESS CONTROL Unit - Self Check

  - 2. Check for keyless access control unit DTCs with the HDS.

  DTC (KEYLESS ACCESS CONTROL UNIT)

  Are any DTCs indicated?

  YES 

  Troubleshoot the keyless access control unit DTCs.

  NO 

  Go to step 3.

• 3. Keyless access system check 2:

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

  ONE-PUSH START - KEYLESS ACCESS CONTROL Unit - History Data

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

  - 3. Touch the driver's and the front passenger's door outer handle touch sensors, then check the HISTORY DATA.

  History Data 

  DRIVER DOOR UNLOCK SWITCH	OK
  FRONT PASSENGER DOOR UNLOCK SWITCH	OK

  Is all the information OK?

  YES 

  Go to step 4.

  NO 

  Go to step 6.

• 4. Keyless access system check 3:

  - 1. Push the driver's and the front passenger's door outer handle lock buttons, then check the HISTORY DATA.

  History Data 

  DRIVER DOOR LOCK SWITCH	OK
  FRONT PASSENGER DOOR LOCK SWITCH	OK

  Is all the information OK?

  YES 

  Go to step 5.

  NO 

  Go to step 8.

• 5. Door lock actuator operation check:

  - 1. Turn the vehicle to the OFF (LOCK) mode, and close all doors.

  - 2. Lock and unlock the driver's door with the driver's door lock switch, and lock and unlock the front passenger's door with the front passenger's door lock switch.

  Do the door lock actuators work normally?

  YES 

  Go to the MICU input test , and do all power, ground, and communication input tests. If the MICU input tests prove OK, replace the under-dash fuse/relay box .

  NO 

  Check the B-CAN system DTCs. If not, check the door lock system.

• 6. Door outer handle power circuit check:

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

  - 2. Disconnect the following connector.

  Faulty door outer handle 8P connector

  - 3. Measure the voltage between test points 1 and 2 respectively.

  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 No. 4
  Test point 2	Driver's door outer handle 8P connector No. 8

  Courtesy of HONDA, U.S.A., INC.

  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 No. 4
  Test point 2	Front passenger's door outer handle 8P connector No. 8

  Courtesy of HONDA, U.S.A., INC.

  Is there battery voltage?

  YES 

  Go to step 7.

  NO 

  Go to step 10.

• 7. Determine possible failure area (door outer handle, others):

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

  ONE-PUSH START - KEYLESS ACCESS CONTROL Unit - History Data

  - 2. Connect terminals A and B with a jumper wire.

  Driver's door 

  Terminals A	Driver's door outer handle 8P connector No. 3
  Terminals B	Body ground

  Courtesy of HONDA, U.S.A., INC.

  Front passenger's door 

  Terminals A	Front passenger's door outer handle 8P connector No. 3
  Terminals B	Body ground

  Courtesy of HONDA, U.S.A., INC.

  - 3. Back to TEST MODE MENU, and recheck the HISTORY DATA.

  History Data 

  DRIVER DOOR UNLOCK SWITCH	OK
  FRONT PASSENGER DOOR UNLOCK SWITCH	OK

  Is all the information OK?

  YES 

  Replace the faulty door outer handle .

  NO 

  Go to step 14.

• 8. Door outer handle power circuit check:

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

  - 2. Disconnect the following connector.

  Faulty door outer handle 8P connector

  - 3. Measure the voltage between test points 1 and 2 respectively.

  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 No. 4
  Test point 2	Driver's door outer handle 8P connector No. 8

  Courtesy of HONDA, U.S.A., INC.

  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 No. 4
  Test point 2	Front passenger's door outer handle 8P connector No. 8

  Courtesy of HONDA, U.S.A., INC.

  Is there battery voltage?

  YES 

  Go to step 9.

  NO 

  Go to step 10.

• 9. Determine possible failure area (door outer handle, others):

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

  ONE-PUSH START - KEYLESS ACCESS CONTROL Unit - History Data

  - 2. Connect terminals A and B with a jumper wire.

  Driver's door 

  Terminals A	Driver's door outer handle 8P connector No. 7
  Terminals B	Body ground

  Courtesy of HONDA, U.S.A., INC.

  Front passenger's door 

  Terminals A	Front passenger's door outer handle 8P connector No. 7
  Terminals B	Body ground

  Courtesy of HONDA, U.S.A., INC.

  - 3. Check the HISTORY DATA with the HDS.

  History Data 

  DRIVER DOOR LOCK SWITCH	OK
  FRONT PASSENGER DOOR LOCK SWITCH	OK

  Is all the information OK?

  YES 

  Replace the faulty door outer handle .

  NO 

  Go to step 16.

• 10. Open wire check (GND line):

  - 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 connector: disconnected
  Test point 1	Driver's door outer handle 8P connector No. 8
  Test point 2	Body ground

  Courtesy of HONDA, U.S.A., INC.

  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 No. 8
  Test point 2	Body ground

  Courtesy of HONDA, U.S.A., INC.

  Is there continuity?

  YES 

  The GND wire is OK. Go to step 11.

  NO 

  Repair an open or high resistance in the ground wire or poor ground (G501, G503).

• 11. Open wire check (VOUT FR DR, VOUT FR AS lines):

  - 1. Disconnect the following connector.

  Keyless access control unit connector A (32P)

  - 2. 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 connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Keyless access control unit connector A (32P) No. 12
  Test point 2	Driver's door outer handle 8P connector No. 4

  Courtesy of HONDA, U.S.A., INC.

  Front passenger's door 

  Test condition	Vehicle OFF (LOCK) mode Front passenger's door outer handle 8P connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Keyless access control unit connector A (32P) No. 21
  Test point 2	Front passenger's door outer handle 8P connector No. 4

  Courtesy of HONDA, U.S.A., INC.

  Is there continuity?

  YES 

  The VOUT FR DR and VOUT FR AS wires are not open. Go to step 12.

  NO 

  Repair an open or high resistance in the wire.

• 12. Shorted wire check (VOUT FR DR, VOUT FR AS 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 connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Driver's door outer handle 8P connector No. 4
  Test point 2	Body ground

  Courtesy of HONDA, U.S.A., INC.

  Front passenger's door 

  Test condition	Vehicle OFF (LOCK) mode Front passenger's door outer handle 8P connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Front passenger's door outer handle 8P connector No. 4
  Test point 2	Body ground

  Courtesy of HONDA, U.S.A., INC.

  Is there continuity?

  YES 

  Repair a short to ground in the wire.

  NO 

  The VOUT FR DR and VOUT FR AS wires are OK. Go to step 13.

• 13. Open wire check (+B BACK UP line):

  - 1. Disconnect the following connector.

  Keyless access control unit connector B (28P)

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

  Test condition	Vehicle OFF (LOCK) mode Faulty door outer handle 8P connector: disconnected Keyless access control unit connector A (32P): disconnected Keyless access control unit connector B (28P): disconnected
  Test point 1	Keyless access control unit connector B (28P) No. 14
  Test point 2	Body ground

  Is there battery voltage?

  YES 

  The +B BACK UP wire is OK. Replace the keyless access control unit .

  NO 

  Repair an open or high resistance in the wire.

• 14. Open wire check (TS FR DR, TS FR AS lines):

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

  - 2. Disconnect the following connector.

  Keyless access control unit connector A (32P)

  - 3. 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 connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Keyless access control unit connector A (32P) No. 14
  Test point 2	Driver's door outer handle 8P connector No. 3

  Courtesy of HONDA, U.S.A., INC.

  Front passenger's door 

  Test condition	Vehicle OFF (LOCK) mode Front passenger's door outer handle 8P connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Keyless access control unit connector A (32P) No. 7
  Test point 2	Front passenger's door outer handle 8P connector No. 3

  Courtesy of HONDA, U.S.A., INC.

  Is there continuity?

  YES 

  The TS FR DR and TS FR AS wires are OK. Go to step 15.

  NO 

  Repair an open or high resistance in the wire.

• 15. Open wire check (+B BACK UP line):

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

  Test condition	Vehicle OFF (LOCK) mode Faulty door outer handle 8P connector: disconnected Keyless access control unit connector B (28P): disconnected
  Test point 1	Keyless access control unit connector B (28P) No. 14
  Test point 2	Body ground

  Is there battery voltage?

  YES 

  The +B BACK UP wire is OK. Replace the keyless access control unit .

  NO 

  Repair an open or high resistance in the wire.

• 16. Open wire check (DL FR DR, DL FR AS lines):

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

  - 2. Remove the jumper wire from the touch sensor.

  - 3. Disconnect the following connector.

  Keyless access control unit connector A (32P)

  - 4. 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 connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Keyless access control unit connector A (32P) No. 30
  Test point 2	Driver's door outer handle 8P connector No. 7

  Courtesy of HONDA, U.S.A., INC.

  Front passenger's door 

  Test condition	Vehicle OFF (LOCK) mode Front passenger's door outer handle 8P connector: disconnected Keyless access control unit connector A (32P): disconnected
  Test point 1	Keyless access control unit connector A (32P) No. 23
  Test point 2	Front passenger's door outer handle 8P connector No. 7

  Courtesy of HONDA, U.S.A., INC.

  Is there continuity?

  YES 

  The DL FR DR and DL FR AS wires are OK. Go to step 17.

  NO 

  Repair an open or high resistance in the wire.

• 17. Open wire check (+B BACK UP line):

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

  Test condition	Vehicle OFF (LOCK) mode Faulty door outer handle 8P connector: disconnected Keyless access control unit connector B (28P): disconnected
  Test point 1	Keyless access control unit connector B (28P) No. 14

  Test point 2

  Body ground

  Is there battery voltage?

  YES 

  The +B BACK UP wire is OK. Replace the keyless access control unit .

  NO 

  Repair an open or high resistance in the wire.