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. A21 (10 A) fuse in the under-hood fuse/relay box is OK.
1.
Keyless access system check 1:
Keyless access system check 1
?1.
Press the engine start/stop button to select the ON mode.
Does the system change to ON mode?
2.
Keyless Access Control Unit DTC check:
Keyless Access Control Unit DTC check
?2.
Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, then enter SELF CHECK.
One-Push - KEYLESS ACCESS CONTROL UNIT- SELF CHECK
?3.
Check for KEYLESS ACCESS CONTROL UNIT DTCs with the HDS.
DTC (KEYLESS ACCESS CONTROL UNIT)
Are any DTCs indicated?
Troubleshoot the KEYLESS ACCESS CONTROL UNIT DTCs.?
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.
One-Push - 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?
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
OK
FRONT PASSENGER DOOR LOCK SWITCH
OK
Is all the information OK?
5.
Door lock actuator operation check:
Door lock actuator operation check
?1.
Press the engine start/stop button to select the OFF 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?
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.
Press the engine start/stop button to select the OFF mode.
?2.
Disconnect the following connector.
?3.
Measure the voltage between test points 1 and 2 respectively.
Driver's door
Test condition
OFF mode
Test circuit
VOUT FR DR, GND
Test point 1
Driver's door outer handle 8P connector No. 4 (RED)
Test point 2
Driver's door outer handle 8P connector No. 8 (BLK)
Front passenger's door
Test condition
OFF mode
Test circuit
VOUT FR AS, GND
Test point 1
Front passenger's door outer handle 8P connector No. 4 (LT BLU)
Test point 2
Front passenger's door outer handle 8P connector No. 8 (BLK)
Is there battery voltage?
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.
One-Push - 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 (WHT)
Terminals B
Body ground
Front passenger's door
Terminals A
Front passenger's door outer handle 8P connector No. 7 (RED)
Terminals B
Body ground
?3.
Go back to TEST MODE MENU, and recheck the HISTORY DATA.
History Data
DRIVER DOOR LOCK SWITCH
OK
FRONT PASSENGER DOOR LOCK SWITCH
OK
Is all the information OK?
8.
Door outer handle power circuit check:
Door outer handle power circuit check
?1.
Press the engine start/stop button to select the OFF mode.
?2.
Disconnect the following connector.
?3.
Measure the voltage between test points 1 and 2 respectively.
Driver's door
Test condition
OFF mode
Test circuit
VOUT FR DR, GND
Test point 1
Driver's door outer handle 8P connector No. 4 (RED)
Test point 2
Driver's door outer handle 8P connector No. 8 (BLK)
Front passenger's door
Test condition
OFF mode
Test circuit
VOUT FR AS, GND
Test point 1
Front passenger's door outer handle 8P connector No. 4 (LT BLU)
Test point 2
Front passenger's door outer handle 8P connector No. 8 (BLK)
Is there battery voltage?
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.
One-Push - 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 (WHT)
Terminals B
Body ground
Front passenger's door
Terminals A
Front passenger's door outer handle 8P connector No. 7 (RED)
Terminals B
Body ground
?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?
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
OFF mode
Test circuit
GND
Test point 1
Driver's door outer handle 8P connector No. 8 (BLK)
Test point 2
Body ground
Front passenger's door
Test condition
OFF mode
Test circuit
GND
Test point 1
Front passenger's door outer handle 8P connector No. 8 (BLK)
Test point 2
Body ground
Is there continuity?
The GND wire is OK. Go to step 11.
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):
Open wire check (VOUT FR DR, VOUT FR AS lines)
?1.
Disconnect the following connector.
?2.
Check for continuity between test points 1 and 2 respectively.
Driver's door
Test condition
OFF mode
Test circuit
VOUT FR DR
Test point 1
Keyless access control unit connector A (32P) No. 12 (RED)
Test point 2
Driver's door outer handle 8P connector No. 4 (RED)
Front passenger's door
Test condition
OFF mode
Test circuit
VOUT FR AS
Test point 1
Keyless access control unit connector A (32P) No. 21 (LT BLU)
Test point 2
Front passenger's door outer handle 8P connector No. 4 (LT BLU)
Is there continuity?
The VOUT FR DR and VOUT FR AS wires are not open. Go to step 12.
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
OFF mode
Test circuit
VOUT FR DR
Test point 1
Driver's door outer handle 8P connector No. 4 (RED)
Test point 2
Body ground
Front passenger's door
Test condition
OFF mode
Test circuit
VOUT FR AS
Test point 1
Front passenger's door outer handle 8P connector No. 4 (LT BLU)
Test point 2
Body ground
Is there continuity?
Repair a short to ground in the wire.?
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.
?2.
Measure the voltage between test points 1 and 2.
Test condition
OFF mode
Test circuit
+B BACK UP
Test point 1
Keyless access control unit connector B (28P) No. 14 (WHT)
Test point 2
Body ground
Is there battery voltage?
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.
Press the engine start/stop button to select the OFF mode.
?2.
Disconnect the following connector.
?3.
Check for continuity between test points 1 and 2 respectively.
Driver's door
Test condition
OFF mode
Test circuit
TS FR DR
Test point 1
Keyless access control unit connector A (32P) No. 14 (GRY)
Test point 2
Driver's door outer handle 8P connector No. 3 (GRY)
Front passenger's door
Test condition
OFF mode
Test circuit
TS FR AS
Test point 1
Keyless access control unit connector A (32P) No. 7 (BRN)
Test point 2
Front passenger's door outer handle 8P connector No. 3 (BRN)
Is there continuity?
The TS FR DR and TS FR AS wires are OK. Go to step 15.
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.
Measure the voltage between test points 1 and 2.
Test condition
OFF mode
Test circuit
+B BACK UP
Test point 1
Keyless access control unit connector B (28P) No. 14 (WHT)
Test point 2
Body ground
Is there battery voltage?
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.
Press the engine start/stop button to select the OFF mode.
?2.
Remove the jumper wire from the driver's door outer handle connector.
?3.
Disconnect the following connector.
?4.
Check for continuity between test points 1 and 2 respectively.
Driver's door
Test condition
OFF mode
Test circuit
DL FR DR
Test point 1
Keyless access control unit connector A (32P) No. 30 (WHT)
Test point 2
Driver's door outer handle 8P connector No. 7 (WHT)
Front passenger's door
Test condition
OFF mode
Test circuit
DL FR AS
Test point 1
Keyless access control unit connector A (32P) No. 23 (RED)
Test point 2
Front passenger's door outer handle 8P connector No. 7 (RED)
Is there continuity?
The DL FR DR and DL FR AS wires are OK. Go to step 17.
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.
Measure the voltage between test points 1 and 2.
Test condition
OFF mode
Test circuit
+B BACK UP
Test point 1
Keyless access control unit connector B (28P) No. 14 (WHT)
Test point 2
Body ground
Is there battery voltage?
Repair an open or high resistance in the wire.?