DTC 23-05: CAN 3 Mode Information Malfunction

Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Turn the ignition switch to LOCK (0).
Start the engine.
Check for DTCs with the HDS.
Is DTC 23-05 indicated?

YES -
- If DTC 21-03, 23-01, 23-02, 23-03, and 23-04 are indicated at the same time, go to step 6.
- If DTC 21-03, 23-01, 23-02, 23-03, and 23-04 are not indicated, troubleshoot the gauge control module (see SELF-DIAGNOSTIC FUNCTION ).
NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the EPS control unit.
Turn the ignition switch to LOCK (0).
Disconnect the gauge control module 32P connector (see step 3 on GAUGE CONTROL MODULE REPLACEMENT ).
Disconnect the EPS control unit connector A (11P) (see step 3 ).

Check for continuity between EPS control unit connector A (11P) terminals and gauge control module 32P connector terminals (see table).

CONNECTOR TERMINAL DESCRIPTION

Sign	EPS Control Unit Connector A (11P) Terminal	Gauge Control Module 32P Connector Terminal
F-CAN L	No. 9	No. 20
F-CAN H	No. 7	No. 19

Fig 1: Checking Continuity Between EPS Control Unit Connector A (11P) Terminals And Gauge Control Module 32P Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Check for loose terminals in the EPS control unit connectors, and repair if necessary. If no poor connections are found, replace the EPS control unit (see EPS CONTROL UNIT REMOVAL/INSTALLATION ).

NO -Repair an open in the wire between the EPS control unit and the gauge control module.