C1A03

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: C1A03: Driving Support ECU Internal Logical Error

DTC C1A03 - Driving Support ECU Internal Logical Error

DTC C1A06 - Stop Light Switch Input Circuit

DESCRIPTION

This DTC indicates the internal abnormalities of the driving support ECU.






INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC
(a) Using the intelligent tester or Techstream, enter the following menus:
(1) Intelligent tester - Select: DIAGNOSIS / OBD/MOBD / RADAR CRUISE / DTC INFO.
(2) Techstream - Select: Powertrain / Radar Cruise / Trouble Code.
(b) Select "CLEAR" and clear the data.
(c) Recheck for DTC.
OK:
DTC C1A03 or C1A06 is not output.
NG -- REPLACE DRIVING SUPPORT ECU
OK -- USE SIMULATION METHOD TO CHECK