AutoCodes – Mitsubishi – P1768 Mitsubishi

P1768 Mitsubishi Code - Transaxle Control Relays Always Off

Quick Answer

The Transmission Control (EATX) Relay is used to supply power to the solenoid pack when the transmission is in normal operating mode. Common causes include Faulty Transmission Control (EATX) Relay, Transmission Control Relay harness is open or shorted, Transmission Control Relay circuit poor electrical connection. 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: P1768 Mitsubishi indicates Transaxle Control Relays Always Off.
Common causes: Common causes include Faulty Transmission Control (EATX) Relay, Transmission Control Relay harness is open or shorted, Transmission Control Relay circuit poor electrical connection.
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 5,887

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 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1768 Mitsubishi Description

The Transmission Control (EATX) Relay is used to supply power to the solenoid pack when the transmission is in normal operating mode. When the relay is off, no power is supplied to the solenoid pack and the transmission is in "limp-in" mode. The relay output is fed back to the TCM.

OBDII Code P1768 Mitsubishi - Transaxle Control Relays Always Off - AutoCodes.com — P1768 Mitsubishi Code - Transaxle Control Relays Always Off

What does this mean?

What are the Possible Causes of the DTC P1768 Mitsubishi?

Faulty Transmission Control (EATX) Relay
Transmission Control Relay harness is open or shorted
Transmission Control Relay circuit poor electrical connection

How to Fix the DTC P1768 Mitsubishi?

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 P1768 Mitsubishi 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 P1768 Mitsubishi code?

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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 P1768 Mitsubishi Code

1. What does the OBDII code P1768 mean in a Mitsubishi?

P1768 indicates that the Transaxle Control Relay is always off, meaning the transmission control module (TCM) is not receiving proper power or communication.

2. What are the common symptoms of P1768 in a Mitsubishi?

Symptoms include the transmission staying in limp mode, harsh gear shifts, inability to shift gears, and an illuminated check engine light.

3. What causes the P1768 code in Mitsubishi vehicles?

Common causes include a faulty transaxle control relay, damaged wiring or connectors, a blown fuse, or a malfunctioning transmission control module (TCM).

4. Can a bad transaxle control relay trigger the P1768 code?

Yes, a defective transaxle control relay is one of the primary reasons for the P1768 code.

5. How do I diagnose the P1768 code in my Mitsubishi?

Start by checking the transaxle control relay, inspecting related fuses, and testing the wiring and connectors for damage. Use a multimeter to confirm proper voltage and continuity.

6. Can I still drive my Mitsubishi with a P1768 code?

While the vehicle may be drivable, it will likely operate in limp mode, which limits performance and could cause further damage if not addressed promptly.

7. How do I fix the P1768 code in a Mitsubishi?

Repairs may involve replacing the transaxle control relay, repairing damaged wiring or connectors, or addressing issues with the TCM.

8. Is a blown fuse a possible cause of the P1768 code?

Yes, a blown fuse in the circuit supplying power to the transaxle control relay can cause this code.

9. Will clearing the P1768 code fix the issue?

Clearing the code may turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.

10. How much does it cost to repair the P1768 code in a Mitsubishi?

The cost depends on the specific repair needed, but replacing a transaxle control relay typically costs between $50 and $150, excluding labor. Wiring or TCM repairs could be more expensive.