Code No. C1797: Too many FCM interventions
DIAGNOSTIC FUNCTION
If the number of operations of the FCM-LS is significantly large, diagnosis code No. C1797 is set.
CHECK CONDITION
When all the following conditions are satisfied
- After the ignition switch is turned ON, two or more seconds passed.
- After the engine has started
PROBABLE CAUSES
- Malfunction of the laser radar
DIAGNOSIS PROCEDURE
Check whether the diagnosis code is set again.
Check again if the diagnosis code is set in the laser radar.
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(1)Erase the set diagnosis code.
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(2)Turn the ignition switch to the "LOCK" (OFF) position.
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(4)Check if the diagnosis code is set.
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Q.
Is the diagnosis code set?
Replace the laser radar (Refer to
).
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction
).