Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch
Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch
1.
Keyless access system check 1:

Keyless access system check 1
?1.
Do this procedure 10 times: Turn the vehicle to the ON mode while turning the steering wheel to the left and to the right.

Does the system change to ON mode?

     
YES
     
     
     
The system is OK at this time.?
     
NO
     
     
     
Go to step 2.
2.
Keyless access system check 2:

Keyless access system check 2
?1.
Touch the engine start/stop switch with the keyless remote. The buttons on the keyless remote should be facing you.

?2.
Turn the vehicle to the ON mode while turning the steering wheel to the left and to the right.

Does the system change to ON mode?

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

Keyless access system check 3
?1.
Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter SELF CHECK.

  

Does the system communicate with the HDS?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Go to step 11.
4.
Keyless access system check 4:

Keyless access system check 4
?1.
Reboot the HDS.

?2.
Select model on the HDS screen.

?3.
When prompted by the HDS, select YES when asked if the vehicle has keyless access system, then press and hold the engine start/stop switch for at least 2 minutes. This selects the forced ON mode.

Does the system change to forced ON mode?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
Go to step 16.
5.
PCU DTC check:

PCU DTC check
?1.
Check for PCU DTCs with the HDS.
DTC Description
DTC
   

Are any DTCs indicated?

     
YES
     
     
     
Troubleshoot the PCU DTCs.?
     
NO
     
     
     
Go to step 6.
6.
Keyless access DTC CHECK:

Keyless access DTC CHECK
?1.
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 7.
7.
Backup DTC check:

Backup DTC check
?1.
Check for backup control unit DTCs with the HDS.
DTC Description
DTC
   

Are any DTCs indicated?

     
YES
     
     
     
Troubleshoot the backup control unit DTCs.?
     
NO
     
     
     
Go to step 8.
8.
Keyless access system check 5:

Keyless access system check 5
?1.
Do the keyless access remote check using the all keyless remotes.

Are the all keyless remotes OK?

     
YES
     
     
     
Go to step 9.
     
NO
     
     
     
9.
Keyless access system check 6:

Keyless access system check 6
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Remove all the keyless remotes from inside the vehicle. Place the keyless remotes more than 1.5 m (4.9 ft) away from the vehicle.

?3.
Disconnect the following connector.
Electric steering lock 12P connector

?4.
Reboot the HDS without pressing the engine start/stop button.

?5.
Do the registration of keyless access control unit according to the instructions on the HDS screen.

?6.
Select REGISTRATION from the ONE-PUSH START system select menu with the HDS, then select REPLACE KEYLESS ACCESS CONTROL UNIT.

  

?7.
Reconnect the following connector.
Electric steering lock 12P connector

?8.
Take the keyless remote into the vehicle, and clear the PCU DTCs with the HDS.


?9.
Do this procedure 10 times: Turn the vehicle to the ON mode while turning the steering wheel to the left and to the right.

Does the system change to ON mode?

     
YES
     
     
     
The system is OK at this time.?
     
NO
     
     
     
Go to step 10.
10.
Keyless access control unit check:

Keyless access control unit check
?1.
Substitute a known-good keyless access control unit.

?2.
Do the registration of keyless access control unit according to the instructions on the HDS screen.

?3.
Select REGISTRATION from the ONE-PUSH START system select menu with the HDS, then select REPLACE KEYLESS ACCESS CONTROL UNIT.

  

?4.
Recheck the system.

Is the system normal?

     
YES
     
     
     
     
NO
     
     
     
11.
L-LINE line check:

L-LINE line check
?1.
Do the DLC circuit troubleshooting.

Is L-LINE line OK?

     
YES
     
     
     
Go to step 12.
     
NO
     
     
     
Repair an L-LINE wire circuit.?
12.
Engine start/stop switch check:

Engine start/stop switch check
?1.
Do the engine start/stop switch test.

Is the engine start/stop switch OK?

     
YES
     
     
     
Go to step 13.
     
NO
     
     
     
13.
Open wire check (SS1(+), SS2(-) lines):

Open wire check (SS1(+), SS2(-) lines)
?1.
Disconnect the following connectors.
Engine start/stop switch 12P connector
Keyless access control unit connector B (36P)

?2.
Check for continuity between test points 1 and 2 respectively.
Test condition
Vehicle OFF (LOCK) mode
Engine start/stop switch 12P connector: disconnected
Keyless access control unit connector B (36P): disconnected
Test point 1
Engine start/stop switch 12P connector No. 7
Test point 2
Keyless access control unit connector B (36P) No. 10

Test point 1
Engine start/stop switch 12P connector No. 6
Test point 2
Keyless access control unit connector B (36P) No. 11


Is there continuity?

     
YES
     
     
     
The SS1(+) and SS2(-) wires are OK. Go to step 14.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
14.
Open wire check (+B SMART line):

Open wire check (+B SMART line)
?1.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Engine start/stop switch 12P connector: disconnected
Keyless access control unit connector B (36P): disconnected
Test point 1
Engine start/stop switch 12P connector No. 12
Test point 2
Body ground


Is there battery voltage?

     
YES
     
     
     
The +B SMART wire is OK. Go to step 15.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
15.
Open wire check (GND line):

Open wire check (GND line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Engine start/stop switch 12P connector: disconnected
Keyless access control unit connector B (36P): disconnected
Test point 1
Engine start/stop switch 12P connector No. 1
Test point 2
Keyless access control unit connector B (36P) No. 25


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open or high resistance in the wire.?
16.
PCU DTC check:

PCU DTC check
?1.
Check for PCU DTCs with the HDS.
DTC Description
DTC
   

Are any DTCs indicated?

     
YES
     
     
     
Go to the indicated PCU DTC Troubleshoot.?
     
NO
     
     
     
Go to step 17.
17.
Open wire check (+B BACK UP, +B SMART lines):

Open wire check (+B BACK UP, +B SMART lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connectors.
Keyless access control unit connector A (32P)
Keyless access control unit connector B (36P)

?3.
Measure the voltage between test points 1 and 2 individually.
Test condition
Vehicle OFF (LOCK) mode
Keyless access control unit connector A (32P): disconnected
Keyless access control unit connector B (36P): disconnected
Test point 1
Keyless access control unit connector A (36P) No. 1
Test point 2
Body ground

Test point 1
Keyless access control unit connector B (36P) No. 18
Test point 2
Body ground

Is there battery voltage?

     
YES
     
     
     
The +B BACK UP and +B SMART wires are OK. Go to step 18.
     
NO
     
     
     
Repair an open or high resistance in the wires.?
18.
Open wire check (GND lines):

Open wire check (GND lines)
?1.
Check for continuity between test points 1 and 2 individually.
Test condition
Vehicle OFF (LOCK) mode
Keyless access control unit connector A (32P): disconnected
Keyless access control unit connector B (36P): disconnected
Test point 1
Keyless access control unit connector A (32P) No. 17
Test point 2
Body ground

Test point 1
Keyless access control unit connector B (36P) No. 36
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
The GND wires is OK. Go to step 19.
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G403).?
19.
Open wire check (between keyless access control unit and electric steering lock lines):

Open wire check (between keyless access control unit and electric steering lock lines)
?1.
Disconnect the following connectors.
Keyless access control unit connector C (20P)
Electric steering lock 12P connector

?2.
Check for continuity between test points 1 and 2 as shown.
Test condition
Vehicle OFF (LOCK) mode
Keyless access control unit connector A (32P): disconnected
Keyless access control unit connector B (36P): disconnected
Keyless access control unit connector C (20P): disconnected
Electric steering lock 12P connector: disconnected

Test point 1:
Keyless access control unit connectors
Test point 2:
Electric steering lock 12P connector
B5
2
B6
4
B33
5
C3
6
B4
9
B2
10


Is there continuity?

     
YES
     
     
     
The wires are not open. Go to step 20.
     
NO
     
     
     
Repair an open or high resistance in the wire(s).?
20.
Shorted wire check (between electric steering lock and body ground):

Shorted wire check (between electric steering lock and body ground)
?1.
Check for continuity between the following test point and body ground individually.
Test condition
Vehicle OFF (LOCK) mode
Keyless access control unit connector A (32P): disconnected
Keyless access control unit connector B (36P): disconnected
Keyless access control unit connector C (20P): disconnected
Electric steering lock 12P connector: disconnected

Connector
Terminal
Electric steering lock 12P connector
2
4
5
6
9
10


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire(s).?
     
NO
     
     
     
The wires are OK. Go to step 21.
21.
Open wire check (+B SMART line):

Open wire check (+B SMART line)
?1.
Turn the vehicle to the ON mode.

?2.
Measure the voltage between test points 1 and 2 individually.
Test condition
Vehicle ON mode
Keyless access control unit connector A (32P): disconnected
Keyless access control unit connector B (36P): disconnected
Keyless access control unit connector C (20P): disconnected
Electric steering lock 12P connector: disconnected
Test point 1
Electric steering lock 12P connector No. 3
Test point 2
Body ground


Is there battery voltage?

     
YES
     
     
     
Go to step 22.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
22.
Open wire check (GND line):

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

?2.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Keyless access control unit connector A (32P): disconnected
Keyless access control unit connector B (36P): disconnected
Keyless access control unit connector C (20P): disconnected
Electric steering lock 12P connector: disconnected
Test point 1
Electric steering lock 12P connector No. 7
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wire is OK. Go to step 23.
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G401).?
23.
Keyless access control unit check:

Keyless access control unit check
?1.
Substitute a known-good keyless access control unit.

?2.
Reconnect the following connectors.
Keyless access control unit connector A (32P)
Keyless access control unit connector B (36P)
Keyless access control unit connector C (20P)
Electric steering lock 12P connector

?3.
Select REGISTRATION from the ONE-PUSH START system select menu with the HDS, then select REPLACE KEYLESS ACCESS CONTROL UNIT.

  

?4.
Turn the vehicle to the ON mode while turning the steering wheel to the left and to the right.

Does the system change to ON mode?

     
YES
     
     
     
     
NO