Part Three

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.

41. Driver's door switch operation check:

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

-2. Remove the driver's door switch.

-3. Disconnect the following connector.






-4. Check for continuity between test points 1 and 2.










Is there no continuity when you push the switch and is there continuity when you release the switch?
-YES- Go to step 42.
-NO- Replace the driver's door switch.

42. Open wire check (DR DOOR 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 DR DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

43. Keyless/power door locks/security system check:

-1. With the front passenger's door closed, check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 44.
-NO- Go to step 46.

44. Front passenger's door switch operation check:

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

-2. Remove the front passenger's door switch.

-3. Disconnect the following connector.






-4. Check for continuity between test points 1 and 2.










Is there no continuity when you push the switch and is there continuity when you release the switch?
-YES- Go to step 45.
-NO- Replace the front passenger's door switch.

45. Shorted wire check (AS DOOR 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 AS DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

46. Front passenger's door switch operation check:

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

-2. Remove the front passenger's door switch.

-3. Disconnect the following connector.






-4. Check for continuity between test points 1 and 2.










Is there no continuity when you push the switch and is there continuity when you release the switch?
-YES- Go to step 47.
-NO- Replace the front passenger's door switch.

47. Open wire check (AS DOOR 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 AS DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

48. Keyless/power door locks/security system check:

-1. With the left rear door closed, check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 49.
-NO- Go to step 51.

49. Left rear door switch operation check:

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

-2. Remove the left rear door switch.

-3. Disconnect the following connector.






-4. Check for continuity between test points 1 and 2.










Is there no continuity when you push the switch and is there continuity when you release the switch?
-YES- Go to step 50.
-NO- Replace the left rear door switch.

50. Shorted wire check (RR DR DOOR 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 RR DR DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

51. Left rear door switch operation check:

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

-2. Remove the left rear door switch.

-3. Disconnect the following connector.






-4. Check for continuity between test points 1 and 2.










Is there no continuity when you push the switch and is there continuity when you release the switch?
-YES- Go to step 52.
-NO- Replace the left rear door switch.

52. Open wire check (RR DR DOOR 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 RR DR DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

53. Keyless/power door locks/security system check:

-1. With the right rear door closed, check the parameter(s) below with the HDS.






Is information indicator ON?
-YES- Go to step 54.
-NO- Go to step 56.

54. Right rear door switch operation check:

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

-2. Remove the right rear door switch.

-3. Disconnect the following connector.






-4. Check for continuity between test points 1 and 2.










Is there no continuity when you push the switch and is there continuity when you release the switch?
-YES- Go to step 55.
-NO- Replace the right rear door switch.

55. Shorted wire check (RR AS DOOR 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 RR AS DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

56. Right rear door switch operation check:

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

-2. Remove the right rear door switch.

-3. Disconnect the following connector.






-4. Check for continuity between test points 1 and 2.










Is there no continuity when you push the switch and is there continuity when you release the switch?
-YES- Go to step 57.
-NO- Replace the right rear door switch.

57. Open wire check (RR AS DOOR 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 RR AS DOOR SW wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.

58. Keyless/power door locks/security system check:

-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 59.
-NO- Go to step 61.

59. Driver's door key cylinder switch operation check:

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

-2. Test the driver's door key cylinder switch Door Key Cylinder Switch Test.

Is the switch OK?
-YES- Go to step 60.
-NO- Faulty driver's door key cylinder switch; replace the driver's door latch Service and Repair.

60. 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 MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.
-NO- Repair an open or high resistance in the ground wire or poor ground (G501).

61. Open wire check (DR KEY CYL LOCK 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 KEY CYL LOCK wire is OK. Faulty MICU; replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal and Installation.