Keyless/Power Door Locks/Security System Symptom Troubleshooting - Security alarm system will not arm
Security alarm system will not arm
NOTE:
Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connector.
Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, troubleshoot the indicated DTC first.
1.
Switch information check:

Switch information check
?1.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?2.
Check the parameter(s) below with the HDS.
Door Multiplex Control Unit
Signal
Current conditions
Value
Unit
Driver's Door Lock Knob Switch (UNLOCK)
    
Passenger's Door Lock Knob Switch (UNLOCK)
    
Driver's Door Key Cylinder Switch (LOCK)
    

MICU
Signal
Current conditions
Value
Unit
Trunk Lid/Tailgate Switch
    
Security Hood Switch
    
Driver's Door Switch
    
Front Passenger's Door Switch
    

Is each switch information OK?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NG
     
     
     
Trunk lid latch switch circuit troubleshooting: go to step 2.
     
NG
     
     
     
Security hood switch circuit troubleshooting: go to step 8.
     
NG
     
     
     
Driver's door lock knob switch circuit troubleshooting: go to step 14.
     
NG
     
     
     
Passenger's door lock knob switch circuit troubleshooting: go to step 20.
     
NG
     
     
     
Driver's door switch circuit troubleshooting: go to step 26.
     
NG
     
     
     
Passenger's door switch circuit troubleshooting: go to step 31.
     
NG
     
     
     
Driver's door key cylinder switch circuit troubleshooting: go to step 36.
2.
Keyless/power door locks/security system check 1:

Keyless/power door locks/security system check 1
?1.
With the trunk closed, check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Trunk Lid/Tailgate Switch
    

Is information indicator ON?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Go to step 5.
3.
Determine possible failure area (trunk lid latch switch, others):

Determine possible failure area (trunk lid latch switch, others)
?1.
Disconnect the following connector.

?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Trunk Lid/Tailgate Switch
    

Is information indicator OFF?

     
YES
     
     
     
Faulty trunk lid latch switch; replace the trunk lid latch.?
     
NO
     
     
     
Go to step 4.
4.
Shorted wire check (TRUNK SW line):

Shorted wire check (TRUNK SW line)
?1.
Turn the ignition switch to LOCK (0), or 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.
Test condition
IG LOCK (0) or OFF mode
Trunk lid latch switch 3P connector: disconnected
Under-dash fuse/relay box connector D (44P): disconnected
Test circuit
TRUNK SW
Test point 1
Under-dash fuse/relay box connector D (44P) No. 37 (WHT)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The TRUNK SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
5.
Keyless/power door locks/security system check 2:

Keyless/power door locks/security system check 2
?1.
Disconnect the following connector.

?2.
Connect terminals A and B with a jumper wire.
Terminal A
Trunk lid latch switch 3P connector No. 1 (WHT)
Terminal B
Body ground


?3.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Trunk Lid/Tailgate Switch
    

Is information indicator ON?

     
YES
     
     
     
Go to step 6.
     
NO
     
     
     
Go to step 7.
6.
Open wire check (GND line):

Open wire check (GND line)
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0), or OFF mode
Trunk lid latch switch 3P connector: disconnected
Test circuit
GND
Test point 1
Trunk lid latch switch 3P connector No. 2 (BLK)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wire is OK. Faulty trunk lid latch switch; replace the trunk lid latch.?
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G603).?
7.
Open wire check (TRUNK SW line):

Open wire check (TRUNK SW line)
?1.
Connect terminals A and B with a jumper wire.
Terminal A
Under-dash fuse/relay box connector D (44P) No. 37 (WHT)
Terminal B
Body ground


?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Trunk Lid/Tailgate Switch
    

Is information indicator ON?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO
     
     
     
The TRUNK SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
8.
Keyless/power door locks/security system check 1:

Keyless/power door locks/security system check 1
?1.
With the hood opened, check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Security Hood Switch
    

Is information indicator OFF?

     
YES
     
     
     
Go to step 9.
     
NO
     
     
     
Go to step 11.
9.
Determine possible failure area (hood latch, others):

Determine possible failure area (hood latch, others)
?1.
Disconnect the following connector.

?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Security Hood Switch
    

Is information indicator ON?

     
YES
     
     
     
Faulty security hood switch; replace the hood latch.?
     
NO
     
     
     
Go to step 10.
10.
Shorted wire check (HOOD SW line):

Shorted wire check (HOOD SW line)
?1.
Turn the ignition switch to LOCK (0), or 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.
Test condition
IG LOCK (0), or OFF mode
Security hood switch 2P connector: disconnected
Under-dash fuse/relay box connector E (36P): disconnected
Test circuit
HOOD SW
Test point 1
Under-dash fuse/relay box connector E (36P) No. 15 (BLU)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The HOOD SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
11.
Keyless/power door locks/security system check 2:

Keyless/power door locks/security system check 2
?1.
Disconnect the following connector.

?2.
Connect terminals A and B with a jumper wire.
Terminal A
Security hood switch 2P connector No. 1 (BLU)
Terminal B
Body ground


?3.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Security Hood Switch
    

Is information indicator OFF?

     
YES
     
     
     
Go to step 12.
     
NO
     
     
     
Go to step 13.
12.
Open wire check (GND line):

Open wire check (GND line)
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0), or OFF mode
Security hood switch 2P connector: disconnected
Test circuit
GND
Test point 1
Security hood switch 2P connector No. 2 (BLK)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wire is OK. Faulty security hood switch; replace the hood latch.?
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G301).?
13.
Open wire check (HOOD SW line):

Open wire check (HOOD SW line)
?1.
Connect terminals A and B with a jumper wire.
Terminal A
Under-dash fuse/relay box connector E (36P) No. 15 (BLU)
Terminal B
Body ground


?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Security Hood Switch
    

Is information indicator OFF?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO
     
     
     
The HOOD SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
14.
Keyless/power door locks/security system check 1:

Keyless/power door locks/security system check 1
?1.
With the driver's door lock knob switch in LOCK position, check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Lock Knob Switch (UNLOCK)
    

Is information indicator ON?

     
YES
     
     
     
Go to step 15.
     
NO
     
     
     
Go to step 17.
15.
Determine possible failure area (driver's door latch, others):

Determine possible failure area (driver's door latch, others)
?1.
Disconnect the following connector.

?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Lock Knob Switch (UNLOCK)
    

Is information indicator OFF?

     
YES
     
     
     
Faulty driver's door lock knob switch; replace the driver's door latch.?
     
NO
     
     
     
Go to step 16.
16.
Shorted wire check (DR SILCON UNLOCK line):

Shorted wire check (DR SILCON UNLOCK line)
?1.
Turn the ignition switch to LOCK (0), or 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.
Test condition
IG LOCK (0), or OFF mode
Driver's door latch 10P connector: disconnected
Power window master switch 37P connector: disconnected
Test circuit
DR SILCON UNLOCK
Test point 1
Power window master switch 37P connector No. 32 (LT BLU)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The DR SILCON UNLOCK wire is OK. Replace the power window master switch.?
17.
Keyless/power door locks/security system check 2:

Keyless/power door locks/security system check 2
?1.
Disconnect the following connector.

?2.
Connect terminals A and B with a jumper wire.
Terminal A
Driver's door latch 10P connector No. 5 (LT BLU)
Terminal B
Body ground


?3.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Lock Knob Switch (UNLOCK)
    

Is information indicator ON?

     
YES
     
     
     
Go to step 18.
     
NO
     
     
     
Go to step 19.
18.
Open wire check (GND line):

Open wire check (GND line)
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0), or OFF mode
Driver's door latch 10P connector: disconnected
Test circuit
GND
Test point 1
Driver's door latch 10P connector No. 7 (BLK)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wire is OK. Faulty driver's door lock knob switch; replace the driver's door latch.?
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G501).?
19.
Open wire check (DR SILCON UNLOCK line):

Open wire check (DR SILCON UNLOCK line)
?1.
Connect terminals A and B with a jumper wire.
Terminal A
Power window master switch 37P connector No. 32 (LT BLU)
Terminal B
Body ground


?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Lock Knob Switch (UNLOCK)
    

Is information indicator ON?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO
     
     
     
The DR SILCON UNLOCK wire is OK. Replace the power window master switch.?
20.
Keyless/power door locks/security system check 1:

Keyless/power door locks/security system check 1
?1.
With the passenger's door lock knob switch in LOCK position, check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Passenger's Door Lock Knob Switch (UNLOCK)
    

Is information indicator ON?

     
YES
     
     
     
Go to step 21.
     
NO
     
     
     
Go to step 23.
21.
Determine possible failure area (passenger's door latch, others):

Determine possible failure area (passenger's door latch, others)
?1.
Disconnect the following connector.

?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Passenger's Door Lock Knob Switch (UNLOCK)
    

Is information indicator OFF?

     
YES
     
     
     
Faulty passenger's door lock knob switch; replace the passenger's door latch.?
     
NO
     
     
     
Go to step 22.
22.
Shorted wire check (AS SILCON UNLOCK line):

Shorted wire check (AS SILCON UNLOCK line)
?1.
Turn the ignition switch to LOCK (0), or 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.
Test condition
IG LOCK (0), or OFF mode
Passenger's door latch 10P connector: disconnected
Passenger's power window switch 37P connector: disconnected
Test circuit
AS SILCON UNLOCK
Test point 1
Passenger's power window switch 37P connector No. 29 (YEL)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The AS SILCON UNLOCK wire is OK. Replace the passenger's power window switch.?
23.
Keyless/power door locks/security system check 2:

Keyless/power door locks/security system check 2
?1.
Disconnect the following connector.

?2.
Connect terminals A and B with a jumper wire.
Terminal A
Passenger's door latch 10P connector No. 10 (YEL)
Terminal B
Body ground


?3.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Passenger's Door Lock Knob Switch (UNLOCK)
    

Is information indicator ON?

     
YES
     
     
     
Go to step 24.
     
NO
     
     
     
Go to step 25.
24.
Open wire check (GND line):

Open wire check (GND line)
?1.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0), or ON mode
Passenger's door latch 10P connector: disconnected
Test circuit
GND
Test point 1
Passenger's door latch 10P connector No. 8 (BLK)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wire is OK. Faulty passenger's door lock knob switch; replace the passenger's door latch.?
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G506).?
25.
Open wire check (AS SILCON UNLOCK line):

Open wire check (AS SILCON UNLOCK line)
?1.
Connect terminals A and B with a jumper wire.
Terminal A
Passenger's power window switch connector No. 29 (YEL)
Terminal B
Body ground


?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Front Passenger's Door Lock Knob Sw. (UNLOCK)
    

Is information indicator ON?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO
     
     
     
The AS SILCON UNLOCK wire is OK. Replace the passenger's power window switch.?
26.
Keyless/power door locks/security system check:

Keyless/power door locks/security system check
?1.
With the driver's door closed, check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Switch
    

Is information indicator ON?

     
YES
     
     
     
Go to step 27.
     
NO
     
     
     
Go to step 29.
27.
Driver's door switch operation check:

Driver's door switch operation check
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Remove the driver's door switch.

?3.
Disconnect the following connector.
Driver's door switch 1P connector

?4.
Check for continuity between test points 1 and 2.
Test point 1
Driver's door switch 1P connector
Test point 2
Switch ground


Is there no continuity when you push the switch and is there continuity when you release the switch?

     
YES
     
     
     
Go to step 28.
     
NO
     
     
     
Replace the driver's door switch.?
28.
Shorted wire check (FL DOOR SW line):

Shorted wire check (FL DOOR SW line)
?1.
Disconnect the following connector.

?2.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0), or OFF mode
Driver's door switch 1P connector: disconnected
Under-dash fuse/relay box connector D (44P): disconnected
Test circuit
FL DOOR SW
Test point 1
Under-dash fuse/relay box connector D (44P) No. 22 (BRN)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The FL DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
29.
Driver's door switch operation check:

Driver's door switch operation check
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Remove the driver's door switch.

?3.
Disconnect the following connector.
Driver's door switch 1P connector

?4.
Check for continuity between test points 1 and 2.
Test point 1
Driver's door switch 1P connector
Test point 2
Switch ground


Is there no continuity when you push the switch and is there continuity when you release the switch?

     
YES
     
     
     
Go to step 30.
     
NO
     
     
     
Replace the driver's door switch.?
30.
Open wire check (FL DOOR SW line):

Open wire check (FL DOOR SW line)
?1.
Connect terminals A and B with a jumper wire.
Terminal A
Under-dash fuse/relay box connector D (44P) No. 22 (BRN)
Terminal B
Body ground


?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Switch
    

Is information indicator ON?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO
     
     
     
The FL DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
31.
Keyless/power door locks/security system check:

Keyless/power door locks/security system check
?1.
With the passenger's door closed, check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Front Passenger's Door Switch
    

Is information indicator ON?

     
YES
     
     
     
Go to step 32.
     
NO
     
     
     
Go to step 34.
32.
Passenger's door switch operation check:

Passenger's door switch operation check
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Remove the passenger's door switch.

?3.
Disconnect the following connector.
Passenger's door switch 1P connector

?4.
Check for continuity between test points 1 and 2.
Test point 1
Passenger's door switch 1P connector
Test point 2
Switch ground


Is there no continuity when you push the switch and is there continuity when you release the switch?

     
YES
     
     
     
Go to step 33.
     
NO
     
     
     
Replace the passenger's door switch.?
33.
Shorted wire check (FR DOOR SW line):

Shorted wire check (FR DOOR SW line)
?1.
Disconnect the following connector.

?2.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0), or OFF mode
Passenger's door switch 1P connector: disconnected
Under-dash fuse/relay box connector S (18P): disconnected
Test circuit
FR DOOR SW
Test point 1
Under-dash fuse/relay box connector S (18P) No. 13 (LT GRN)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The FR DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
34.
Passenger's door switch operation check:

Passenger's door switch operation check
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Remove the passenger's door switch.

?3.
Disconnect the following connector.
Passenger's door switch 1P connector

?4.
Check for continuity between test points 1 and 2.
Test point 1
Passenger's door switch 1P connector
Test point 2
Switch ground


Is there no continuity when you push the switch and is there continuity when you release the switch?

     
YES
     
     
     
Go to step 35.
     
NO
     
     
     
Replace the passenger's door switch.?
35.
Open wire check (FR DOOR SW line):

Open wire check (FR DOOR SW line)
?1.
Connect terminals A and B with a jumper wire.
Terminal A
Under-dash fuse/relay box connector S (18P) No. 13 (LT GRN)
Terminal B
Body ground


?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Front Passenger's Door Switch
    

Is information indicator ON?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO
     
     
     
The FR DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box.?
36.
Keyless/power door locks/security system check:

Keyless/power door locks/security system check
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connector.

?3.
Connect terminals A and B with a jumper wire.
Terminal A
Driver's door latch 10P connector No. 9 (PUR)
Terminal B
Body ground


?4.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Key Cylinder Switch (LOCK)
    

Is information indicator ON?

     
YES
     
     
     
Go to step 37.
     
NO
     
     
     
Go to step 39.
37.
Driver's door key cylinder switch operation check:

Driver's door key cylinder switch operation check
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Test the driver's door key cylinder switch.

Is the switch OK?

     
YES
     
     
     
Go to step 38.
     
NO
     
     
     
Faulty driver's door key cylinder switch; replace the driver's door latch.?
38.
Open wire check (GND line):

Open wire check (GND line)
?1.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0), or OFF mode
Driver's door latch 10P connector: disconnected
Test circuit
GND
Test point 1
Driver's door latch 10P connector No. 7 (BLK)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G501).?
39.
Open wire check (DR KEY CYL LOCK line):

Open wire check (DR KEY CYL LOCK line)
?1.
Connect terminals A and B with a jumper wire.
Terminal A
Power window master switch 37P connector No. 35 (PUR)
Terminal B
Body ground


?2.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Value
Unit
Driver's Door Key Cylinder Switch (LOCK)
    

Is information indicator ON?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO
     
     
     
The DR KEY CYL LOCK wire is OK. Replace the power window master switch.?