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
NOTE:
Before troubleshooting, make sure the No. A18 (10 A) fuse in the under-hood fuse/relay box is OK.
Front passenger's*1 is for 4-door, passenger's*2 is for 2-door.
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: Without electric steering lock
     
     
     
     
NO: With electric steering lock
     
     
     
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, and 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 each 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 each 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 8.
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*1/passenger's*2 door lock switch.

Do the door lock actuators work normally?

     
YES
     
     
     
Go to the body control module input test, and do all power, ground, and communication input tests. If the body control module input tests prove OK, replace the body control module.?
     
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 connectors.
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*1/passenger's*2 door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's*1/passenger's*2 door outer handle 8P connector: disconnected
Test point 1
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 4
Test point 2
Front passenger's*1/passenger's*2 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. 7
Terminals B
Body ground

Front passenger's*1/passenger's*2 door
Terminals A
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 7
Terminals B
Body ground


?3.
Go back to TEST MODE menu, and recheck 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
     
     
     
     
NO
     
     
     
Go to step 14.
8.
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 connectors.
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*1/passenger's*2 door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's*1/passenger's*2 door outer handle 8P connector: disconnected
Test point 1
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 4
Test point 2
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 8


Is there battery voltage?

     
YES
     
     
     
Go to step 9.
     
NO
     
     
     
Go to step 10.
9.
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. 7
Terminals B
Body ground

Front passenger's*1/passenger's*2 door
Terminals A
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 7
Terminals B
Body ground


?3.
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
     
     
     
     
NO
     
     
     
Go to step 16.
10.
Open wire check (GND line):

Open wire check (GND line)
?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*1/passenger's*2 door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's*1/passenger's*2 door outer handle 8P connector: disconnected
Test point 1
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 8
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wires are OK. Go to step 11.
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G501, G505).?
11.
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.
Body control module connector G (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
Body control module connector G (32P): disconnected
Test point 1
Body control module connector G (32P) No. 31
Test point 2
Driver's door outer handle 8P connector No. 4

Front passenger's*1/passenger's*2 door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's*1/passenger's*2 door outer handle 8P connector: disconnected
Body control module connector G (32P): disconnected
Test point 1
Body control module connector G (32P) No. 30
Test point 2
Front passenger's*1/passenger's*2 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 12.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
12.
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
Body control module connector G (32P): disconnected
Test point 1
Driver's door outer handle 8P connector No. 4
Test point 2
Body ground

Front passenger's*1/passenger's*2 door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's*1/passenger's*2 door outer handle 8P connector: disconnected
Body control module connector G (32P): disconnected
Test point 1
Front passenger's*1/passenger's*2 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 13.
13.
Open wire check (+B BACK UP line):

Open wire check (+B BACK UP line)
?1.
Disconnect the following connector.
Body control module connector C (28P)

?2.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Each door outer handle 8P connectors: disconnected
Body control module connector C (28P): disconnected
Body control module connector G (32P): disconnected
Test point 1
Body control module connector C (28P) No. 27
Test point 2
Body ground

Is there battery voltage?

     
YES
     
     
     
The +B BACK UP wire is OK. Replace the body control module.?
     
NO
     
     
     
Repair an open or high resistance in the wire.?
14.
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 following connector.
Body control module connector G (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
Driver's door outer handle 8P connector: jumped to body ground
Body control module connector G (32P): disconnected
Test point 1
Body control module connector G (32P) No. 22
Test point 2
Driver's door outer handle 8P connector No. 3

Front passenger's*1/passenger's*2 door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's*1/passenger's*2 door outer handle 8P connector: disconnected
Front passenger's*1/passenger's*2 door outer handle 8P connector: jumped to body ground
Body control module connector G (32P): disconnected
Test point 1
Body control module connector G (32P) No. 25
Test point 2
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 3


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):

Open wire check (+B BACK UP line)
?1.
Disconnect the following connector.
Body control module connector C (28P)

?2.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Each door outer handle 8P connectors: disconnected
Each door outer handle 8P connectors: jumped to body ground
Body control module connector C (28P): disconnected
Body control module connector G (32P): disconnected
Test point 1
Body control module connector C (28P) No. 27
Test point 2
Body ground

Is there battery voltage?

     
YES
     
     
     
The +B BACK UP wire is OK. Replace the body control module.?
     
NO
     
     
     
Repair an open or high resistance in the wire.?
16.
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.
Remove the jumper wires from the door outer handle connectors.

?3.
Disconnect the following connector.
Body control module connector G (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
Body control module connector G (32P): disconnected
Test point 1
Body control module connector G (32P) No. 19
Test point 2
Driver's door outer handle 8P connector No. 7

Front passenger's*1/passenger's*2 door
Test condition
Vehicle OFF (LOCK) mode
Front passenger's*1/passenger's*2 door outer handle 8P connector: disconnected
Body control module connector G (32P): disconnected
Test point 1
Body control module connector G (32P) No. 1
Test point 2
Front passenger's*1/passenger's*2 door outer handle 8P connector No. 7


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):

Open wire check (+B BACK UP line)
?1.
Disconnect the following connector.
Body control module connector C (28P)

?2.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Each door outer handle 8P connectors: disconnected
Body control module connector C (28P): disconnected
Body control module connector G (32P): disconnected
Test point 1
Body control module connector C (28P) No. 27
Test point 2
Body ground

Is there battery voltage?

     
YES
     
     
     
The +B BACK UP wire is OK. Replace the body control module.?
     
NO
     
     
     
Repair an open or high resistance in the wire.?