AutoCodes - OBDII Code List - P0741 MERCURY

P0741 MERCURY - Torque Converter Clutch Mechanical System

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

P0741 MERCURY Possible Causes

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty torque converter clutch solenoid valve
  • Torque converter clutch solenoid valve harness or connectors
  • Torque converter clutch solenoid valve circuit is open or shorted
  • Transmission internal mechanical problem

How do I fix code P0741 MERCURY?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Tech Notes

There is a factory service bulletin for the following 1996-2003 Mercury Sable:
1996-2003 Mercury Sable Factory Service Bulletin OBDII Code P0741

Cost of diagnosing the P0741 MERCURY code

Labor: 1.0

The cost of diagnosing the P0741 MERCURY code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the code detected?

The Engine Control Module (ECM) detected excessive transmission slippage or no TCC solenoid operation

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0741 MERCURY Description

The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter.
Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.
OBDII Code P0741 Mercury - Torque Converter Clutch Mechanical System - AutoCodes.com

More Information

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Comments

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