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Home >> Honda >> 2014 >> Accord Plug-In >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 95 (Security System Keyless Entry System - Testing & Troubleshooting (1 Of 2) (Except Hybrid)) >> Inspection/Adjustment >> Keyless Access System Check (2015-17)

Keyless Access System Check (2015-17)

WARNING: This page is about a different variant/trim than selected.

1. Connect the HDS to the data link connector (DLC).

2. Press the engine start/stop button to select 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 keyless access control unit 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-1A-2A-3G-4
  • Keyless remote is mismatched
  • RF unit failure
  • LF interior antenna failure
  • Keyless remote is not registered
  • Keyless remote test
  • RF unit test
  • LF interior antenna test
  • Register the keyless remote
B-1B-2G-1
  • PCM is replaced
  • No communication between Keyless Access Control Unit and PCM
  • Open in the IG1 line
  • Keyless Access Control Unit is replaced
  • Register the PCM
  • Check PCM
  • Check harness
  • Register the Keyless Access Control Unit
C-1C-2G-2G-3
  • MICU (Imoes unit) is replaced
  • Communication error between Keyless Access Control Unit and MICU
  • Open in the IG1 line
  • Keyless Access Control Unit is replaced
  • Register the Keyless Access Control Unit
  • Check MICU
  • Check harness
C-3C-4
  • Power Control Unit is replaced
  • Electric Steering Lock is replaced*
  • Keyless Access Control Unit is replaced
  • Register the Keyless Access Control Unit
  • Register the Electric Steering Lock*
  • Check for an open or short in the wire IGN TRX lines*
G-5
  • Electric Steering Lock is replaced*
  • Keyless Access Control Unit is replaced
  • Register the Keyless Access Control Unit
  • Register the Electric Steering Lock*
  • Check for an open or short in the wire IGN TRX lines*

*: Except USA CVT and A/T models

System Check 2 (Keyless Access Control Unit) 

System Check No. Possible cause Check items
D-1D-2D-3
  • S-NET line is shorted
  • No communication between Keyless Access Control Unit and MICU (Imoes unit)
  • No communication between Keyless Access Control Unit and PCM
  • Check harness
  • Check MICU
  • Check PCM
D-4D-5 IGN TRX line trouble* Check IGN TRX line*

*: Except USA CVT and A/T models

System Check (Backup Control Unit) 

System Check No. Possible cause Check items
A-1A-2A-3
  • Keyless remote is mismatched
  • Engine Start/Stop Switch failure
  • Keyless remote is not registered
  • Register the keyless remote
  • Check Engine Start/Stop Switch
B-1B-2
  • PCM is replaced
  • Communication error between Keyless Access Control Unit and PCM
  • Register the PCM
  • Check PCM
C-1C-2
  • MICU is replaced
  • Communication error between Keyless Access Control Unit and MICU
  • Open in the IG1 line
  • Register the Keyless Access Control Unit
  • Check MICU
  • Check harness
D-1D-2D-3
  • S-NET line is shorted
  • No communication between Keyless Access Control Unit and MICU (Imoes unit)
  • No communication between Keyless Access Control Unit and PCM
  • Check harness
  • Check MICU
  • Check PCM
E-1E-2E-3E-4E-5 Keyless Access Control Unit is not registered Register the Keyless Access Control Unit
F-1F-2F-3F-4F-5 Special Mode Press the engine start/stop button to select the ON mode and then select the OFF mode with a registered keyless remote