Keyless Access System Check (2016-17)

Connect the HDS to the data link connector (DLC) .
Press the engine start/stop button to select the ON mode.
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 keyless access/TPMS control unit power, ground, K line, and L-line connectors.
At KEYLESS ACCESS CONTROL UNIT, enter KEYLESS ACCESS SYSTEM INFORMATION, then select SYSTEM CHECK 1 or SYSTEM CHECK 2.
At BACKUP CONTROL UNIT, enter SYSTEM INFORMATION, then select SYSTEM CHECK.
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/TPMS Control Unit)

System Check No.	Possible cause	Check items
A-1A-2A-3G-4	Keyless remote is mismatched No communication between keyless access/TPMS control unit and keyless remote Keyless remote is not registered 2-way transceiver failure^*2	Register the keyless remote LF interior antenna test Check antenna level with the HDS 2-way transceiver test^*2
B-1B-2G-1	PCM is not registered No communication between keyless access/TPMS control unit and PCM Keyless access/TPMS control unit is replaced	Register the PCM Check PCM Check for an open in the S-NET lines Register the keyless access/TPMS control unit
C-1C-2G-2G-3	MICU (Imoes unit) is replaced Communication error between keyless access/TPMS control unit and MICU Keyless access/TPMS control unit is replaced	Register the MICU Register the keyless access/TPMS control unit Check MICU Check for an open or short in the S-NET lines
C-3C-4G-5	Keyless access/TPMS control unit is replaced Communication error between keyless access/TPMS control unit and electric steering lock^1 Electric steering lock is not registered^1	Register the keyless access/TPMS control unit Check for an open or short in the IGN TRX line^1 Check electric steering lock^1 Register the electric steering lock^*1

*1: Canada and Mexico models*2: With remote engine start

System Check 2 (Keyless Access/TPMS Control Unit)

System Check No.	Possible cause	Check items
D-1D-2D-3	S-NET line is open or short No communication between keyless access/TPMS control unit and MICU (imoes unit) No communication between keyless access/TPMS control unit and PCM	Check for an open or short in the S-NET lines Check MICU Check PCM

System Check No.	Possible cause	Check items
D-4D-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-1A-2A-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-1B-2	PCM is replaced Communication error between keyless access/TPMS control unit and PCM	Register the PCM Check PCM
C-1C-2	MICU is replaced Communication error between keyless access/TPMS control unit and MICU (imoes unit)	Register the keyless access/TPMS control unit Check MICU Check for an open in the S-NET lines
D-1D-2D-3	S-NET line is open or short No communication between keyless access/TPMS control unit and MICU (imoes unit) No communication between keyless access/TPMS control unit and PCM	Check for an open or short in the S-NET lines Check MICU Check PCM
E-1E-2E-3E-4E-5	Keyless access/TPMS control unit is not registered PCM is not registered MICU is not registered Keyless remote is not registered	Register the keyless access/TPMS control unit Register the PCM Register the MICU Register the keyless remote
F-1F-2F-3F-4F-5	Special mode	Press the engine start/stop button to select the ON mode and then the OFF mode with a registered keyless remote