Part Two

Keyless/Power Door Locks/Security System Symptom Troubleshooting - Auto door unlock does not work

AUTO DOOR UNLOCK does not work


32. Open wire check (ATP-P line):

Open wire check (ATP-P line)
-1. Connect terminals A and B with a jumper wire.









-2. Check the ON/OFF information of the A/T GEAR POSITION SWITCH (P) in the DATA LIST.

Is information indicator ON?
-YES- Repair an open or high resistance in the wire.
-NO- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

33. 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, select DOOR LOCKS with the HDS, and enter the DATA LIST.

-2. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 34.
-NO- Go to step 36.

34. 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 ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator OFF?
-YES- Faulty driver's door lock knob switch, replace the driver's door latch Front Door Latch Removal and Installation (4-door).
-NO- Go to step 35.

35. Shorted wire check (DR_SILCON_UNLOCK line):

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- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

36. 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.









-3. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 37.
-NO- Go to step 38.

37. Open wire check (GND line) 3:

Open wire check (GND line) 3
-1. Check for continuity between test points 1 and 2.









Is there continuity?
-YES- Faulty driver's door lock knob switch, replace the driver's door latch Front Door Latch Removal and Installation (4-door).
-NO- Repair an open or high resistance in the wire or poor ground (G502).

38. Open wire check (DR_SILCON_UNLOCK line):

Open wire check (DR_SILCON_UNLOCK line)
-1. Connect terminals A and B with a jumper wire.









-2. Check the ON/OFF information of the DRIVER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Repair an open or high resistance in the wire.
-NO- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

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

Keyless/power door locks/security system check 1
-1. With the front passenger's door lock knob switch in LOCK position, select DOOR LOCKS with the HDS, and enter the DATA LIST.

-2. Check the ON/OFF information of the FRONT PASSENGER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 40.
-NO- Go to step 42.

40. Determine possible failure area (front passenger's door latch, others):

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





-2. Check the ON/OFF information of the FRONT PASSENGER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator OFF?
-YES- Faulty front passenger's door lock knob switch, replace the front passenger's door latch Front Door Latch Removal and Installation (4-door).
-NO- Go to step 41.

41. Shorted wire check (AS_SILCON_UNLOCK line):

Shorted wire check (AS_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- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

42. 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.









-3. Check the ON/OFF information of the FRONT PASSENGER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 43.
-NO- Go to step 44.

43. Open wire check (GND line) 3:

Open wire check (GND line) 3
-1. Check for continuity between test points 1 and 2.









Is there continuity?
-YES- Faulty front passenger's door lock knob switch, replace the front passenger's door latch Front Door Latch Removal and Installation (4-door).
-NO- Repair an open or high resistance in the ground wire or poor ground (G504).

44. Open wire check (AS_SILCON_UNLOCK line):

Open wire check (AS_SILCON_UNLOCK line)
-1. Connect terminals A and B with a jumper wire.









-2. Check the ON/OFF information of the FRONT PASSENGER'S DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Repair an open or high resistance in the wire.
-NO- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

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

Keyless/power door locks/security system check 1
-1. With the left rear door lock knob switch in LOCK position, select DOOR LOCKS with the HDS, and enter the DATA LIST.

-2. Check the ON/OFF information of the DRIVER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 46.
-NO- Go to step 48.

46. Determine possible failure area (left rear door latch, others):

Determine possible failure area (left rear door latch, others)
-1. Disconnect the following connector.





-2. Check the ON/OFF information of the DRIVER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator OFF?
-YES- Faulty left rear door lock knob switch, replace the left rear door latch Service and Repair.
-NO- Go to step 47.

47. Shorted wire check (RR_L_SILCON_UNLOCK line):

Shorted wire check (RR_L_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- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

48. 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.









-3. Check the ON/OFF information of the DRIVER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 49.
-NO- Go to step 50.

49. Open wire check (GND line) 3:

Open wire check (GND line) 3
-1. Check for continuity between test points 1 and 2.









Is there continuity?
-YES- Faulty left rear door lock knob switch, replace the left rear door latch Service and Repair.
-NO- Repair an open or high resistance in the ground wire or poor ground (G602).

50. Open wire check (RR_L_SILCON_UNLOCK_line):

Open wire check (RR_L_SILCON_ UNLOCK_line)
-1. Connect terminals A and B with a jumper wire.









-2. Check the ON/OFF information of the DRIVER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Repair an open or high resistance in the wire.
-NO- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

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

Keyless/power door locks/security system check 1
-1. With the right rear door lock knob switch in LOCK position, select DOOR LOCKS with the HDS, and enter the DATA LIST.

-2. Check the ON/OFF information of the PASSENGER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 52.
-NO- Go to step 54.

52. Determine possible failure area (right rear door latch, others):

Determine possible failure area (right rear door latch, others)
-1. Disconnect the following connector.





-2. Check the ON/OFF information of the PASSENGER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator OFF?
-YES- Faulty right rear door lock knob switch, replace the right rear door latch Service and Repair.
-NO- Go to step 53.

53. Shorted wire check (RR_R_SILCON_UNLOCK line):

Shorted wire check (RR_R_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- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.

54. 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.









-3. Check the ON/OFF information of the PASSENGER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Go to step 55.
-NO- Go to step 56.

55. Open wire check (GND line) 3:

Open wire check (GND line) 3
-1. Check for continuity between test points 1 and 2.









Is there continuity?
-YES- Faulty right rear door lock knob switch, replace the right rear door latch Service and Repair.
-NO- Repair an open or high resistance in the ground wire or poor ground (G602).

56. Open wire check (RR_R_SILCON_UNLOCK line):

Open wire check (RR_R_SILCON_ UNLOCK line)
-1. Connect terminals A and B with a jumper wire.









-2. Check the ON/OFF information of the PASSENGER'S REAR DOOR LOCK KNOB SWITCH (UNLOCK) in the DATA LIST.

Is information indicator ON?
-YES- Repair an open or high resistance in the wire.
-NO- Faulty MICU, replace the under-dash fuse/relay box Service and Repair.