Code No. C1752
Radar temperature out of range
| caution |
- Whenever the ECU is replaced, ensure
that the CAN bus lines are normal.
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OPERATION
The FCM/LDW/AHB-ECU monitors temperature at the sensor.
DIAGNOSIS CODE SET CONDITION
This diagnosis code is set when the abnormality below is detected:
- The temperature which the FCM/LDW/AHB-ECU detects at the
sensor is below -40°C or over 100°C.
| note |
- The system does not monitor any malfunction when the FCM and the LDW is deactivated.
- The area in the proximity of the sensor is too hot (e.g; parked under blazing sun).
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PROBABLE CAUSES
- The FCM/LDW/AHB-ECU remains protected.
- Malfunction of the FCM/LDW/AHB-ECU
DIAGNOSIS PROCEDURE
Check whether the diagnosis code is set again.
Check again if the diagnosis code is set in the FCM/LDW/AHB-ECU.
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(1)Turn the ignition switch "LOCK" (OFF) indoors, and then wait until the FCM/LDW/AHB-ECU reaches
normal operating temperature.
| note |
You can observe the FCM/LDW/AHB-ECU temperature on M.U.T. data list
item No. 2. (Refer to  .)
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(2)Erase the diagnosis code.
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(3)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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(4)Check if diagnosis code is set.
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Q.
Is the diagnosis code set?
Replace the FCM/LDW/AHB-ECU (Refer to ).
A component protection has been triggered. This is not a malfunction.