I was told I need to replace my Electronic Control Module, but I don't know where it's located. Can anyone tell me where to find it on a 2001 Toyota Corolla LE (manual)? From past experiences, I believe if I clean the contacts my problem may go away. Thank you.
?€¢
Digital radio receiver
?€¢
Electronic brake control module (EBCM)
?€¢
Engine Control Module (ECM) (LY7)
?€¢
Instrument panel cluster (IPC)
?€¢
HVAC module
?€¢
Powertrain control module (PCM) (L26)
?€¢
Radio
?€¢
Inflatable restraint sensing and diagnostic module (SDM)
?€¢
Vehicle control interface module (VCIM)
The GMLAN serial data communications circuit used on this vehicle is in a linear topology. The following modules are connected to the link, in order from DLC to the end of the linear configuration:
The following modules communicate on the GMLAN serial data circuit:
?€¢
The transmission control module (TCM), (LY7) 3.6-L
?€¢
The engine control module (ECM), (LY7) 3.6-L
I very strongly suggest you don't try to fix this problem !
OPERATION
When the term Electronic Control Module (ECM) is used in this guide it will refer to the engine control computer regardless that it may be a Vehicle Control Module (VCM), Powertrain Control Module (PCM) or Engine Control Module (ECM).
The Electronic Control Module (ECM) is required to maintain the exhaust emissions at acceptable levels. The module is a small, solid state computer which receives signals from many sources and sensors; it uses these data to make judgments about operating conditions and then control output signals to the fuel and emission systems to match the current requirements.
Engines coupled to electronically controlled transmissions employ a Powertrain Control Module (PCM) or Vehicle Control Module (VCM) to oversee both engine and transmission operation. The integrated functions of engine and transmission control allow accurate gear selection and improved fuel economy.
In the event of an ECM failure, the system will default to a pre-programmed set of values. These are compromise values which allow the engine to operate, although at a reduced efficiency. This is variously known as the default, limp-in or back-up mode. Driveability is almost always affected when the ECM enters this mode.
REMOVAL & INSTALLATION
See Figures 1 and 2
Fig. Fig. 1: ECM mounting scheme-except 1996 models
Fig. Fig. 2: ECM mounting scheme-1996 models
The ECM is located in the passenger side footwell in the kick panel up to 1996. In 1996, the ECM is located in the engine compartment next to the battery.
621 views
Usually answered in minutes!
Body control module malfuctions how to diagnose and replace
×