Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the door outer handle touch sensors, but will unlock or lock with the keyless remote
NOTE: Before troubleshooting, make sure the BACK UP fuse in the under-hood fuse/relay box is OK.
- 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
- 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.
One-Push - KEYLESS ACCESS CONTROL UNIT - SELF CHECK
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.
- 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 - KEYLESS ACCESS CONTROL UNIT - History data/Clear
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.
- Keyless access system check 3
-1. Touch the each door outer handle lock sensors, then check the HISTORY DATA.
One-Push - KEYLESS ACCESS CONTROL UNIT - History data/Clear
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.
- 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 touch sensors, and lock and unlock the doors with the front passenger's door touch sensors.
Do the door lock actuators work normally?
YES
Do the input test for the body control module , 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.
- 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: disconnectedTest point 1 Driver's door outer handle 8P connector (female terminals) No. 4: Test point 2 Driver's door outer handle 8P connector (female terminals) No. 8: Front passenger's door
Test condition Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnectedTest point 1 Front passenger's door outer handle 8P connector (female terminals) No. 4: Test point 2 Front passenger's door outer handle 8P connector (female terminals) No. 8: Is there battery voltage?
YES
Go to step 7.
NO
Go to step 10.
- 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.
One-Push - KEYLESS ACCESS CONTROL UNIT - History data/Clear
Connect terminals A and B with a jumper wire.
Driver's door
Terminals A Driver's door outer handle 8P connector (female terminals) No. 7: Terminals B Body ground Front passenger's door
Terminals A Front passenger's door outer handle 8P connector (female terminals) 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
Replace the faulty door outer handle .
NO
Go to step 14.
- 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: disconnectedTest point 1 Driver's door outer handle 8P connector (female terminals) No. 4: Test point 2 Driver's door outer handle 8P connector (female terminals) No. 8: Front passenger's door
Test condition Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnectedTest point 1 Front passenger's door outer handle 8P connector (female terminals) No. 4: Test point 2 Front passenger's door outer handle 8P connector (female terminals) No. 8: Is there battery voltage?
YES
Go to step 9.
NO
Go to step 10.
- 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.
One-Push - KEYLESS ACCESS CONTROL UNIT - History data/Clear
Connect terminals A and B with a jumper wire.
Driver's door
Terminals A Driver's door outer handle 8P connector (female terminals) No. 7: Terminals B Body ground Front passenger's door
Terminals A Front passenger's door outer handle 8P connector (female terminals) 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
Replace the faulty door outer handle .
NO
Go to step 16.
- Open wire check (GND line)
-1. Measure the resistance between test points 1 and 2 individually.
Driver's door
Test condition Vehicle OFF (LOCK) mode
Driver's door outer handle 8P connector: disconnectedTest 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: disconnectedTest point 1 Front passenger's door outer handle 8P connector (female terminals) No. 8: Test point 2 Body ground Is there 1.0 Ω or less?
YES
The GND wires are OK. Go to step 11.
NO
Repair an open or high resistance in the ground wire or poor ground (G401, G402).
- Open wire check (VOUT_FR_DR, VOUT_FR_AS lines)
-1. Disconnect the following connector.
Body control module connector G (32P) -2. Measure the resistance 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): disconnectedTest point 1 Body control module connector G (32P) No. 31 Test point 2 Driver's door outer handle 8P connector (female terminals) No. 4: Front passenger's door
Test condition Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnected
Body control module connector G (32P): disconnectedTest point 1 Body control module connector G (32P) No. 30 Test point 2 Front passenger's door outer handle 8P connector (female terminals) No. 4: Is there 1.0 Ω or less?
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.
- Shorted wire check (VOUT_FR_DR, VOUT_FR_AS lines)
-1. Measure the resistance 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): disconnectedTest 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
Body control module connector G (32P): disconnectedTest point 1 Front passenger's door outer handle 8P connector (female terminals) No. 4: Test point 2 Body ground Is there 1.0 MΩ or more?
YES
The VOUT_FR_DR and VOUT_FR_AS wires are OK. Go to step 13.
NO
Repair a short to ground in the wire.
- 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): disconnectedTest 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.
- 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. Measure the resistance 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): disconnectedTest point 1 Body control module connector G (32P) No. 22 Test point 2 Driver's door outer handle 8P connector (female terminals) No. 3: Front passenger's door
Test condition Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnected
Front passenger's door outer handle 8P connector: jumped to body ground
Body control module connector G (32P): disconnectedTest point 1 Body control module connector G (32P) No. 25 Test point 2 Front passenger's door outer handle 8P connector (female terminals) No. 3: Is there 1.0 Ω or less?
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.
- 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): disconnectedTest 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.
- 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. Measure the resistance 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): disconnectedTest point 1 Body control module connector G (32P) No. 19 Test point 2 Driver's door outer handle 8P connector (female terminals) No. 7: Front passenger's door
Test condition Vehicle OFF (LOCK) mode
Front passenger's door outer handle 8P connector: disconnected
Body control module connector G (32P): disconnectedTest point 1 Body control module connector G (32P) No. 1 Test point 2 Front passenger's door outer handle 8P connector (female terminals) No. 7: Is there 1.0 Ω or less?
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.
- 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): disconnectedTest 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.