Keyless Access System Check
1.

2.
Turn the vehicle to the ON mode.

3.
On the HDS screen, at SYSTEM SELECTION MENU, enter ONE-PUSH START, then select KEYLESS ACCESS CONTROL UNIT or BACKUP CONTROL UNIT.

NOTE: If the HDS does not communicate, check the body control module power, ground, K line, and L-line connectors.

4.
At KEYLESS ACCESS CONTROL UNIT, enter KEYLESS ACCESS SYSTEM INFORMATION, then select SYSTEM CHECK 1 or SYSTEM CHECK 2.

5.
At BACKUP CONTROL UNIT, enter SYSTEM INFORMATION, then select SYSTEM CHECK.

6.
If the HDS displays NORMAL N-1, the immobilizer system is OK at this time, refer to the STATUS LOG. If the HDS displays any other messages, check as follows:

System Check 1 (Keyless Access Control Unit)
System Check No.
Possible cause
Check items
A-1
A-2
A-3
G-4
Keyless remote is mismatched
No communication between body control module and keyless remote
Keyless remote is not registered
Register the keyless remote
LF antenna test
Check antenna level with the HDS
B-1
B-2
G-1
PCM is not registered
No communication between body control module and PCM
Body control module is replaced
Register the PCM
Check PCM
Check for an open in the S-NET lines
Register the body control module
C-1
C-2
G-2
G-3
Body control module is not registered
Body control module is replaced
Register the body control module
Check body control module
Check for an open in the S-NET lines
C-3
C-4
G-5
Body control module is replaced
Communication error between body control module and electric steering lock
Electric steering lock is not registered
Register the body control module
Check for an open or short in the IGN TRX line
Check electric steering lock
Register the electric steering lock

System Check 2 (Keyless Access Control Unit)
System Check No.
Possible cause
Check items
D-1
D-2
D-3
S-NET line is open or short
No communication between body control module and PCM
Check for an open or short in the S-NET lines
Check body control module
Check PCM
D-4
D-5
IGN TRX line is open or short
Check for an open or short in the IGN TRX line

System Check (Backup Control Unit)
System Check No.
Possible cause
Check items
A-1
A-2
A-3
Keyless remote is mismatched
Keyless remote is not registered
Engine start/stop switch failure
Register the keyless remote
Check engine start/stop switch
B-1
B-2
PCM is replaced
Communication error between body control module and PCM
Register the PCM
Check PCM
C-1
C-2
Body control module is replaced
Register the body control module
Check body control module
Check for an open in the S-NET lines
D-1
D-2
D-3
S-NET line is open or short
No communication between body control module and PCM
Check for an open or short in the S-NET lines
Check body control module
Check PCM
E-1
E-2
E-3
E-4
E-5
Body control module is not registered
PCM is not registered
Keyless remote is not registered
Register the body control module
Register the PCM
Register the keyless remote
F-1
F-2
F-3
F-4
F-5
Special mode
Turn the vehicle to the ON mode and then select the OFF (LOCK) mode with a registered keyless remote