DTC Troubleshooting: 9, 15

LKAS Control Unit DTC 9: F-CAN Communication with the Gauge Control Module Malfunction LKAS Control Unit DTC 15: F-CAN Communication Malfunction (Packet Error of the Gauge Control Module) Clear the DTC using the HDS. Turn the ignition switch OFF, then turn it ON (II), and wait for 20 seconds or more. Watch the adaptive cruise control (ACC)/LKAS indicator. Does the adaptive cruise control (ACC)/LKAS indicator come on?
YES | - | Go to Step 4 .
NO | - | Intermittent failure, the system is OK at this time.■
Check for DTC with HDS. Is DTC 9 or 15 indicated?
YES | - | Go to Step 5 .
NO | - | Do the appropriate troubleshooting for the code indicated.■
Check for adaptive cruise control (ACC) unit DTCs with HDS. Is DTC 113 indicated?
YES | - | Go to Step 6 .
NO | - | Check for loose terminals in the LKAS control unit connectors, and repair if necessary. If no poor connections are found, replace the LKAS control unit. ■
Turn the ignition switch OFF. Disconnect the LKAS control unit 26P connector and the gauge control module connector (36P). Check for continuity between LKAS control unit 26P connector terminal No. 12 and gauge control module connector (36P) terminal No. 1. Is there continuity?
YES | - | Go to Step 9 .
NO | - | Repair an open in the wire between the LKAS control unit and the branch of the F-CAN (CANH).■

Check for continuity between LKAS control unit 26P connector terminal No. 25 and gauge control module connector (36P) terminal No. 19. Is there continuity?
YES | - | Check for loose terminals in the gauge control module connector, and repair if necessary. If no poor connections are found, replace the gauge control module. ■
NO | - | Repair an open in the wire between the LKAS control unit and the branch of the F-CAN (CANL).■