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C1785 Lexus Code - Steering Control ECU Communication Error

- Code Popularity: 3,597 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C1785 Lexus?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Steering Control ECU
  • Steering Control ECU harness is open or shorted
  • Steering Control ECU circuit poor electrical connection
  • Faulty Suspension Control ECU
⚠ Does your Lexus have Safety Recalls? → Check here

How to Fix the DTC C1785 Lexus?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1785 Lexus code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

Code C1785 Lexus Description

The Suspension Control ECU receives signals from the Steering Control ECU via CAN communication. When there is a communication malfunction, it will be detected by the diagnosis function.

OBDII Code C1785 Lexus - Steering Control ECU Communication Error - AutoCodes.com
C1785 Lexus Code - Steering Control ECU Communication Error

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Code C1785 Lexus comments

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