Operation CHARM: Car repair manuals for everyone.

Part One






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 connectors.
* Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, troubleshoot the indicated DTC first.

1. Switch information check:

-1. Turn the ignition switch to ON (II).

-2. Check the parameter(s) below with the HDS.






Is each switch information OK?
-YES- Intermittent failure, the system is OK at this time.
-NG- Tailgate 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- Front passenger's door lock knob switch circuit troubleshooting: go to step 20.
-NG- Left rear door lock knob switch circuit troubleshooting: go to step 26.
-NG- Right rear door lock knob switch circuit troubleshooting: go to step 32.
-NG- Driver's door switch circuit troubleshooting: go to step 38.
-NG- Front passenger's door switch circuit troubleshooting: go to step 43.
-NG- Left rear door switch circuit troubleshooting: go to step 48.
-NG- Right rear door switch circuit troubleshooting: go to step 53.
-NG- Driver's door key cylinder switch circuit troubleshooting: go to step 58.

2. Keyless/power door locks/security system check 1:

-1. Check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 3.
-NO- Go to step 5.

3. Determine possible failure area (tailgate latch switch, others):

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.






-3. Check the parameter(s) below with the HDS.






Is information indicator OFF?
-YES- Faulty tailgate latch switch; replace the tailgate latch Service and Repair.
-NO- Go to step 4.

4. Shorted wire check (TRUNK SW line):

-1. Disconnect the following connector.






-2. Check for continuity between test points 1 and 2.










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 Under-Dash Fuse/Relay Box Removal and Installation.

5. Keyless/power door locks/security system check 2:

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.






-3. Connect terminals A and B with a jumper wire.










-4. Check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 6.
-NO- Go to step 7.

6. Open wire check (GND line):

-1. Check for continuity between test points 1 and 2.










Is there continuity?
-YES- The GND wire is OK. Faulty tailgate latch switch; replace the tailgate latch Service and Repair.
-NO- Repair an open or high resistance in the ground wire or poor ground (G603).

7. Open wire check (TRUNK SW line):

-1. Connect terminals A and B with a jumper wire.










-2. Check the parameter(s) below with the HDS.






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 Under-Dash Fuse/Relay Box Removal and Installation.

8. Keyless/power door locks/security system check 1:

-1. With the hood opened, check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 9.
-NO- Go to step 11.

9. Determine possible failure area (hood latch, others):

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.






-3. Check the parameter(s) below with the HDS.






Is information indicator OFF?
-YES- Faulty security hood switch; replace the hood latch Service and Repair.
-NO- Go to step 10.

10. Shorted wire check (HOOD SW line):

-1. Disconnect the following connector.






-2. Check for continuity between test points 1 and 2.










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 Under-Dash Fuse/Relay Box Removal and Installation.

11. Keyless/power door locks/security system check 2:

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.






-3. Connect terminals A and B with a jumper wire.










-4. Check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 12.
-NO- Go to step 13.

12. Open wire check (GND line):

-1. Check for continuity between test points 1 and 2.










Is there continuity?
-YES- The GND wire is OK. Faulty security hood switch; replace the hood latch Service and Repair.
-NO- Repair an open or high resistance in the ground wire or poor ground (G402).

13. Open wire check (HOOD SW line):

-1. Connect terminals A and B with a jumper wire.










-2. Check the parameter(s) below with the HDS.






Is information indicator ON?
-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 Under-Dash Fuse/Relay Box Removal and Installation.

14. 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.






Is information indicator ON?
-YES- Go to step 15.
-NO- Go to step 17.

15. Determine possible failure area (driver's door latch, others):

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.






-3. Check the parameter(s) below with the HDS.






Is information indicator OFF?
-YES- Faulty driver's door lock knob switch; replace the driver's door latch Service and Repair.
-NO- Go to step 16.

16. Shorted wire check (DR SILCON UNLOCK line):

-1. Disconnect the following connector.






-2. Check for continuity between test points 1 and 2.










Is there continuity?
-YES- Repair a short to ground in the wire.
-NO- The DR SILCON UNLOCK wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

17. Keyless/power door locks/security system check 2:

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.






-3. Connect terminals A and B with a jumper wire.










-4. Check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 18.
-NO- Go to step 19.

18. Open wire check (GND line):

-1. Check for continuity between test points 1 and 2.










Is there continuity?
-YES- The GND wire is OK. Faulty driver's door lock knob switch; replace the driver's door latch Service and Repair.
-NO- Repair an open or high resistance in the ground wire or poor ground (G501).

19. Open wire check (DR SILCON UNLOCK line):

-1. Connect terminals A and B with a jumper wire.










-2. Check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Repair an open or high resistance in the wire.
-NO- The DR SILCON UNLOCK wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

20. Keyless/power door locks/security system check 1:

-1. With the front passenger's door lock knob switch in LOCK position, check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 21.
-NO- Go to step 23.