DTC Troubleshooting: 12, 18
LKAS Control Unit DTC 12:
 Lost Communication with the LKAS Camera
LKAS Control Unit DTC 18:
 LKAS Camera Packet Communication Error
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), then turn it to ON (II), and wait for 20 seconds or more.
  1. Watch the LKAS indicator.
Does the LKAS indicator come on?
YES -
Go to Step 4 .
NO -
Intermittent failure, the system is OK at this time.■
  1. Check for DTC with the HDS.
Is DTC 12 or 18 indicated?
YES -
Go to Step 5 .
NO -
Troubleshoot the indicated DTC(s).■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the LKAS control unit 26P connector and the LKAS camera 10P connector.
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between body ground and LKAS camera 10P connector No. 3 and No. 4 terminals individually.
Is there battery voltage?
YES -
Repair short to power in the wire between LKAS camera and LKAS control unit.■
NO -
Go to Step 9 .
  1. Turn the ignition switch to LOCK (0).