Lexus ES: Steering Sensor Signal Malfunction (C1784)
DESCRIPTION
Steering sensor signals are sent to the absorber control ECU via CAN communication.
If a communication error is detected, DTC C1784 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
| C1784 | Steering Sensor Signal Malfunction | A steering sensor communication error is detected, or a steering sensor power malfunction is detected for 5 seconds or more. | Electronically controlled brake system | Does not come on | Yes (Under some of the detection conditions (sensor power +B open malfunction is detected), DTC is not stored.) |
PROCEDURE
| 1. | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
(a) Go to electronically controlled brake system.
Click here
| NEXT | | END |
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SEE MORE:
DESCRIPTION This DTC is stored when there is an open or short circuit in the communication line between the front sensors and the ECU, or when there is a malfunction in a front sensor. DTC No. Detection Item DTC Detection Condition Trouble Area C1AEC Front Sensor Communication Malfunc
REMOVAL
PROCEDURE
1. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH
Click here
2. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH
Click here
3. REMOVE NO. 1 ENGINE UNDER COVER
Click here
4. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY
Click here
5. REMOVE V-RIBBED BELT
(a)
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