DESCRIPTION
DTC C1A52 is stored when the ECM cannot recognize the millimeter wave radar sensor assembly.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
---|---|---|---|---|
C1A52 |
Radar Cruise Control Presence Determination Malfunction (Engine / HV) |
Approximately 17 seconds after the ignition switch is turned to ON, the ECM cannot recognize the millimeter wave radar sensor assembly for approximately 1.3 seconds or more. |
|
Does not come on |
CAUTION / NOTICE / HINT
NOTICE:
Click here
w/o Smart Key System: Click here
w/ Smart Key System: Click here
PROCEDURE
1. |
CHECK FOR DTC (RADAR CRUISE 2) |
(a) Clear the DTCs.
Click here
(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1A52 is not output |
A |
DTC C1A52 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
|
2. |
REPLACE ECM |
(a) Replace the ECM.
Click here
|
3. |
CHECK FOR DTC (RADAR CRUISE 2) |
(a) Clear the DTCs.
Click here
(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1A52 is not output |
A |
DTC C1A52 is output |
B |
A | ![]() |
END (ECM WAS DEFECTIVE) |
B | ![]() |
REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
Installation
INSTALLATION
PROCEDURE
1. INSTALL COOLER CONDENSER ASSEMBLY
(a) Engage the 2 claws to install the 2 condenser upper brackets.
(b) Engage the 2 claws to install the 2 condenser lower brackets.
(c) Lift the cooler condenser assembly up from the rear side of the vehicle,
and install ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals ...
Road Test
ROAD TEST
HINT:
'SET' and '-', 'RES' and '+', 'ON-OFF' functions share the same switch. Operate
the cruise control main switch according to the directions indicated on the switch.
1. INSPECT 'SET' FUNCTION
(a) Push the ON-OFF button on (A).
(b ...