AutoCodes – Generic – C1370

C1370 Code - Engine Or Transmission System Matching Error

Quick Answer

This Diagnostic Trouble Code (DTC) is set by the Skid Control ECU when the Engine Control Module (ECM) is replaced with one that has different engine and transmission information than the information stored in the Skid Control ECU. Common causes include Faulty VSC Actuator Assembly (Skid Control ECU), Faulty Engine Control Module (ECM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C1370 indicates Engine Or Transmission System Matching Error.
Common causes: Common causes include Faulty VSC Actuator Assembly (Skid Control ECU), Faulty Engine Control Module (ECM).
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,580

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 20, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1370 Description

This Diagnostic Trouble Code (DTC) is set by the Skid Control ECU when the Engine Control Module (ECM) is replaced with one that has different engine and transmission information than the information stored in the Skid Control ECU. This DTC is also set when the VSC Actuator Assembly (Skid Control ECU) is replaced with one that has different engine and transmission information than the information stored in the ECM.

OBDII Code C1370 - Engine Or Transmission System Matching Error - AutoCodes.com — C1370 Code - Engine Or Transmission System Matching Error

What does this mean?

What are the Possible Causes of the DTC C1370?

Faulty VSC Actuator Assembly (Skid Control ECU)
Faulty Engine Control Module (ECM)

How to Fix the DTC C1370?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1370 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1370 code?

Need more information on how to fix the C1370 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1370 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1370 Lexus — Engine Or Transmission System Matching Error
C1370 Scion — Engine Or Transmission System Matching Error
C1370 Toyota — Engine Or Transmission System Matching Error

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1370 Code

1. What are the common symptoms of OBDII code C1370 (Engine Or Transmission System Matching Error)?

- Common symptoms include poor engine performance, transmission shifting issues, illuminated warning lights (such as the Check Engine Light), and possible vehicle stalling.

2. What can cause OBDII code C1370 to trigger?

- This code is typically triggered when there is a communication error between the engine and transmission control modules, often due to faulty wiring, connectors, or the modules themselves.

3. How can I diagnose the root cause of OBDII code C1370?

- Diagnosing this code may require checking the wiring and connectors between the engine and transmission control modules, as well as using a scan tool to retrieve additional diagnostic trouble codes for further insight.

4. Are there any DIY repair tips for OBDII code C1370?

- DIY repair tips may include visually inspecting the wiring and connectors for any damage or corrosion, ensuring they are securely connected, and clearing the code to see if it returns after addressing any issues found.

5. Can OBDII code C1370 cause long-term damage if left unaddressed?

- Ignoring this code can potentially lead to further damage to the engine or transmission systems, as the communication error may prevent proper coordination between the two critical components.

6. Is it safe to continue driving with OBDII code C1370 present?

- It is not recommended to drive with this code present, as it can impact the overall performance and safety of your vehicle. It's best to address the underlying issue promptly.

7. How much does it typically cost to repair OBDII code C1370?

- The cost of repairing this code can vary depending on the root cause, such as replacing wiring, connectors, or control modules. Costs may range from a few hundred to over a thousand dollars.

8. Can a simple reset of the system clear OBDII code C1370?

- A simple reset may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return as the communication error persists.

9. Will disconnecting the battery reset OBDII code C1370?

- Disconnecting the battery may reset the code temporarily, but it is important to diagnose and repair the root cause to prevent the code from reappearing.

10. How long does it typically take to repair OBDII code C1370?

- The repair time for this code can vary based on the specific issues found during diagnosis. It may range from a quick fix to a more involved repair that could take several hours or even days.