PowertrainP0740

Caution

Severity: Caution - get it checked when you can

Torque Converter Clutch Circuit

40 brands affected · Generic SAE J2012 description.

Key terms: SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This range normally covers the transmission control system, but some manufacturers use P07-P09 codes for unrelated functions (fuel pump control, air-mix motors, lighting or windows). Check the description before assuming it is a transmission fault.

2Common causes

Low or dirty transmission fluid
Faulty shift solenoid
Faulty speed sensor
Wiring or connector fault
Internal transmission wear

3Can I drive?

Caution · drive with care

If the transmission slips, jerks, will not shift, or a transmission temperature warning is on, stop driving and let it cool: continuing can cause expensive damage. If the code names a different system (for example the fuel pump), treat it on its own terms; a fuel-pump control failure can stall the car, so have it checked before driving further. Otherwise drive gently to a workshop.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 40

Brand	Code	Description	System
Ashok Leyland CV	P0740	Torque Converter Clutch Circuit SAE	Powertrain
BAIC Motor	P0740	Torque Converter Clutch Circuit/Open Brand	Powertrain
Mercedes-Benz	P0740	Torque Converter Clutch Circuit SAE	Powertrain
BMW	P0740	implausible signal or value Brand	Powertrain
BYD	P0740	TCC solenoid Brand	Powertrain
Chery	P0740	TCC solenoid Brand	Powertrain
Chrysler	P0740	TCC Out of Range Brand	Powertrain
Daewoo	P0740	Torque Converter Clutch Circuit/Open Brand	Powertrain
Daihatsu	P0740	Electronically controlled transmission (ECT) ECU fault Brand	Powertrain
DFFS	P0740	Torque converter failure Brand	Powertrain
DFFX	P0740	TCC solenoid Brand	Powertrain
DFXK	P0740	Torque Converter Clutch Circuit/Open Brand	Powertrain
EOBD	P0740	Wandlerkupplungskreis/offen Brand	Powertrain
Fiat	P0740	TCC Out of range Brand	Powertrain
Ford	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Geely	P0740	TCC solenoid Brand	Powertrain
GM	P0740	Torque Converter Clutch Circuit/Open Brand	Powertrain
Great Wall	P0740	TCC solenoid Brand	Powertrain
Hafei	P0740	TCC solenoid Brand	Powertrain
Holden	P0740	Torque Converter Clutch (TCC) Enable Solenoid Valve Control Circuit Brand	Powertrain
Honda	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Hyundai	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Isuzu	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Land Rover	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Mazda	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Mitsubishi	P0740	DCC solenoid Brand	Powertrain
Nissan	P0740	Torque Converter Clutch (TCC) solenoid valve Brand	Powertrain
Opel	P0740	Torque Converter Clutch Circuit/Open Brand	Powertrain
Perodua	P0740	Electronically controlled transmission (ECT) ECU fault Brand	Powertrain
Peugeot	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Porsche	P0740	Wandlerüberbrückungskupplung Brand	Powertrain
Proton	P0740	DCC solenoid Brand	Powertrain
Saab	P0740	Torque Converter Clutch Circuit/Open Brand	Powertrain
MG (SAIC)	P0740	Torque Converter Clutch Circuit/Open Brand	Powertrain
Smart	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Sprinter	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Subaru	P0740	Torque Converter Clutch Circuit SAE	Powertrain
Suzuki	P0740	TCC SOLENOID/CIRC Brand	Powertrain
Tata	P0740	Shift Solenoid A Malfunction Brand	Powertrain
Toyota	P0740	Torque converter clutch solenoid valve fault Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 2

These 7-character codes are manufacturer-specific variants of P0740 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P074000	Transmission malfunction: TCC head control Brand	Powertrain
Land Rover	P074013	No description available	Powertrain

6Related codes

Browse Pxxx codes or P074xx codes.