Keyless Access System Symptom Troubleshooting - The key-in reminder sounds in vehicle OFF mode when door is open
The key-in reminder sounds in vehicle OFF mode when door is open
NOTE: Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connector.

1.
PCU DTC check:

PCU DTC check
?1.
Connect the HDS to the data link connector (DLC).

?2.
Check for PCU DTCs with the HDS.
DTC Description
DTC
   


Are there any DTCs?

     
YES
     
     
     
Troubleshoot the PCU DTCs.?
     
NO
     
     
     
Go to step 2.
2.
Shorted wire check (KEY SW line):

Shorted wire check (KEY SW line)
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connectors.

?3.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
Keyless access control unit connector C (24P): disconnected
Under-dash fuse/relay box connector P (24P): disconnected
Test circuit
KEY SW
Test point 1
Keyless access control unit connector C (24P) No. 6 (PNK)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
The KEY SW wire is not shorted. Go to step 3.
3.
Open wire check (KEY SW line):

Open wire check (KEY SW line)
?1.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
Keyless access control unit connector C (24P): disconnected
Under-dash fuse/relay box connector P (24P): disconnected
Test circuit
KEY SW
Test point 1
Under-dash fuse/relay box connector P (24P) No. 22 (PNK)
Test point 2
Keyless access control unit connector C (24P) No. 6 (PNK)


Is there continuity?

     
YES
     
     
     
The KEY SW wire is OK. Go to step 4.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
4.
Determine possible failure area (under-dash fuse/relay box, others):

Determine possible failure area (under-dash fuse/relay box, others)
?1.
Reconnect under-dash fuse/relay box connector P (24P).

?2.
Measure the voltage between test points 1 and 2.
Test condition
OFF mode
Keyless access control unit connector C (24P): disconnected
Test circuit
KEY SW
Test point 1
Under-dash fuse/relay box connector P (24P) No. 22 (PNK)
Test point 2
Body ground


Is there battery voltage?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
5.
Power control unit KEY SW line check:

Power control unit KEY SW line check
?1.
Reconnect keyless access control unit connector C (24P).

?2.
Press the engine start/stop button to select the ON mode.

?3.
Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter FUNCTIONAL TESTS.

  

?4.
Connect the voltmeter to test points 1 and 2.
Test point 1
Keyless access control unit connector C (24P) No. 6 (PNK)
Test point 2
Body ground


?5.
Select DRLOCKSWOUT with the HDS.

Does the voltage change from about 12 to 0 V?

     
YES
     
     
     
Go to step 6.
     
NO
     
     
     
6.
Power control unit SS1 (+) line check:

Power control unit SS1 (+) line check
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connector.

?3.
Measure the voltage between test points 1 and 2.
Test condition
OFF mode
Keyless access control unit connector B (28P): disconnected
Test circuit
SS1 (+)
Test point 1
Keyless access control unit connector B (28P) No. 12 (BLU)
Test point 2
Body ground


Is there about 0 V?

     
YES
     
     
     
Reconnect the connectors and recheck the system. If the symptom does not go away, replace the keyless access control unit.?
     
NO
     
     
     
Go to step 7.
7.
Open wire check (SS1 (+) line):

Open wire check (SS1 (+) line)
?1.
Disconnect the following connector.

?2.
Do the engine start/stop switch test.

Is the engine start/stop switch OK?

     
YES
     
     
     
Repair an open or high resistance in the wire.?
     
NO