Dtc C1784 Steering Angle Sensor Communication Error
DESCRIPTION
INSPECTION PROCEDURE
CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)
CLEAR DTC
CHECK DTC
DTC C1784 Steering Angle Sensor Communication Error
DESCRIPTION
The steering sensor signal is sent to the suspension control ECU through the CAN communication system. When there is a communication malfunction, it will be detected by the diagnosis function.
| DTC Code | Detection Condition | Trouble Area |
| C1784 | A steering angle sensor signal malfunction is detected, or the steering angle sensor power malfunction signal is detected for 5 seconds or more. | Vehicle stability control system
Suspension control ECU
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INSPECTION PROCEDURE
Before performing troubleshooting, inspect the connectors of related circuits.
If the suspension control ECU or height control sensor is replaced, the vehicle height offset calibration must be performed ().
| 1.CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM) |
Check if a steering sensor malfunction DTC is output under the vehicle stability control system ().
Result| Result | Proceed to |
| DTC is not output | A |
| DTC is output | B |
| | GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) ()
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Check for DTCs.
Result| Result | Proceed to |
| DTC C1784 is output | A |
| DTC C1784 is not output | B |
| | USE SIMULATION METHOD TO CHECK ()
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| A | |
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| REPLACE SUSPENSION CONTROL ECU ()
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