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
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
1.
Keyless access system check 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
     
     
     
2.
Keyless access DTC check:

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.

  

?2.
Check for keyless access control unit DTCs with the HDS.
DTC Description
DTC
   


Are any DTCs indicated?

     
YES
     
     
     
Troubleshoot the keyless access control unit DTCs.?
     
NO
     
     
     
Go to step 3.
3.
Keyless access system check 2:

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.

  

?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
(OUTER HANDLE TOUCH SENSOR)
OK
FRONT PASSENGER DOOR UNLOCK SWITCH
(OUTER HANDLE TOUCH SENSOR)
OK

Is all the information OK?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Go to step 6.
4.
Keyless access system check 3:

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
(OUTER HANDLE TOUCH SENSOR)
OK
FRONT PASSENGER DOOR LOCK SWITCH
(OUTER HANDLE TOUCH SENSOR)
OK

Is all the information OK?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
Go to step 13.
5.
Door lock actuator operation check:

Door lock actuator operation check
?1.
Turn the vehicle to the OFF (LOCK) mode, and close all doors.

?2.
Lock and unlock the doors with the driver's door lock switch, and lock and unlock the doors 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:

Door outer handle power circuit check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Each 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

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


Is there battery voltage?

     
YES
     
     
     
Go to step 7.
     
NO
     
     
     
Go to step 10.
7.
Determine possible failure area (door outer handle, others):

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 DATA, then enter the HISTORY CLEAR.

  

?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

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


?3.
Go back to TEST MODE MENU, and recheck the HISTORY DATA.
History Data
DRIVER DOOR UNLOCK SWITCH
(OUTER HANDLE TOUCH SENSOR)
OK
FRONT PASSENGER DOOR UNLOCK SWITCH
(OUTER HANDLE TOUCH SENSOR)
OK

Is all the information OK?

     
YES
     
     
     
     
NO
     
     
     
Go to step 8.
8.
Open wire check (TS FR DR, TS FR AS lines):

Open wire check (TS FR DR, TS FR AS lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the jumper wires.

?3.
Disconnect the following connector.
Keyless access control unit connector C (20P)

?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 C (20P): disconnected
Test point 1
Test point 2
Driver's door outer handle 8P connector No. 3

Front passenger's door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnected
Keyless access control unit connector C (20P): disconnected
Test point 1
Test point 2
Front passenger's door outer handle 8P connector No. 3


Is there continuity?

     
YES
     
     
     
The TS FR DR and TS FR AS wires are not open. Go to step 9.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
9.
Shorted wire check (TS FR DR, TS FR AS lines):

Shorted wire check (TS FR DR, TS FR AS lines)
?1.
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
Keyless access control unit connector C (20P): disconnected
Test point 1
Test point 2
Body ground

Front passenger's door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnected
Keyless access control unit connector C (20P): disconnected
Test point 1
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The TS FR DR and TS FR AS wires are OK. Replace the keyless access control unit.?
10.
Open wire check (VOUT FR DR, VOUT FR AS lines):

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

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


Is there continuity?

     
YES
     
     
     
The VOUT FR DR and VOUT FR AS wires are not open. Go to step 11.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
11.
Shorted wire check (VOUT FR DR, VOUT FR AS lines):

Shorted wire check (VOUT FR DR, VOUT FR AS lines)
?1.
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
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

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


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 12.
12.
Open wire check (GND lines):

Open wire check (GND lines)
?1.
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 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 No. 8
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G401, G403).?
13.
Determine possible failure area (GND lines, DL lines):

Determine possible failure area (GND lines, DL lines)
?1.
Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter HISTORY DATA, then enter the HISTORY CLEAR.

  

?2.
Turn the vehicle to the OFF (LOCK) mode.

?3.
Disconnect the following connector.
Each door outer handle 8P connector

?4.
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

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


?5.
Check the HISTORY DATA with the HDS.
History Data
DRIVER DOOR LOCK SWITCH
(OUTER HANDLE TOUCH SENSOR)
OK
FRONT PASSENGER DOOR LOCK SWITCH
(OUTER HANDLE TOUCH SENSOR)
OK

Is all the information OK?

     
YES
     
     
     
Go to step 14.
     
NO
     
     
     
Go to step 15.
14.
Open wire check (GND lines):

Open wire check (GND lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the jumper wires.

?3.
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 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 No. 8
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wires are OK. Replace the faulty door outer handle.?
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G401, G403).?
15.
Open wire check (DL FR DR, DL FR AS lines):

Open wire check (DL FR DR, DL FR AS lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the jumper wires.

?3.
Disconnect the following connector.
Keyless access control unit connector C (20P)

?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 C (20P): disconnected
Test point 1
Test point 2
Driver's door outer handle 8P connector No. 7

Front passenger's door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnected
Keyless access control unit connector C (20P): disconnected
Test point 1
Test point 2
Front passenger's door outer handle 8P connector No. 7


Is there continuity?

     
YES
     
     
     
The DL FR DR and DL FR AS wires are not open. Go to step 16.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
16.
Shorted wire check (DL FR DR, DL FR AS lines):

Shorted wire check (DL FR DR, DL FR AS lines)
?1.
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
Keyless access control unit connector C (20P): disconnected
Test point 1
Test point 2
Body ground

Front passenger's door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnected
Keyless access control unit connector C (20P): disconnected
Test point 1
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The DL FR DR and DL FR AS wires are OK. Replace the keyless access control unit.?