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ECU Location Please?

Tiny
JOMONEY57
  • MEMBER
  • 1999 TOYOTA CAMRY
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
I am trying to program a new remote control and need to locate the ECU. Where is it?
Saturday, March 6th, 2010 AT 4:03 PM

14 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Saturday, March 6th, 2010 AT 4:19 PM
Tiny
CORNISH
  • MEMBER
  • 1 POST
  • 1998 TOYOTA CAMRY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
Hi there, My toyota camry had an accident, and air bags are broken as well as driver side seat belt. We bought air bags and computer through online, (ebay) but cannot locate the computer in the car. Looked under seat, in the middle, everywhere, but could not locate one. Can you please let me know where the computer is located? If you could send a picture with it, it would be greatly appreciated. Thank you!
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Thursday, November 12th, 2020 AT 6:08 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS


https://www.2carpros.com/forum/automotive_pictures/561653_Air_bag_module_98_Camry_1.gif



The airbag sensor assembly is mounted on the floor inside the lower center finish panel. The airbag sensor assembly consists of an airbag sensor, safing sensor, diagnosis circuit a ignition control and drive circuit, etc. It receives signals from the airbag sensor and judges whether the SRS must be activated or not.

These are instructions from the service manual

INSTALLATION

NOTICE:

* Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
* Never reuse the airbag sensor assembly involved in a collision when the airbag has deployed.
* Never repair a sensor in order to reuse it.

1. INSTALL AIRBAG SENSOR ASSEMBLY

Left Hand Side View

Right Hand Side View

1. Using a torx wrench, install the airbag sensor assembly with 3 screws. Torx wrench: T40 (Part No.09042-00020 or locally manufactured tool)

Torque: 20 N.m (205 kgf.cm, 15 ft.lbf)

2. Connect the airbag sensor connectors.

NOTICE:

* Installation of the connector is done after the sensor assembly has been installed.
* Make sure the sensor assembly is installed with the specified torque.
* If the sensor assembly has been dropped, or there are cracks, dents or other defects in the case, bracket or connector, replace the sensor assembly with a new one.
* When installing the senor assembly, take care that the SRS wiring does not interfere with other parts and is not pinched between other parts.
* After installing, shake the sensor assembly to check that there is no looseness.

2. INSTALL REMOVED PARTS
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Thursday, November 12th, 2020 AT 6:08 PM (Merged)
Tiny
RICH ABRAHAMSEN
  • MEMBER
  • 2 POSTS
  • 1994 TOYOTA CAMRY
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 141,797 MILES
Since Dec. 2013, engine dies while running. After " First Inspection: 7/17/14. Milage -141,221. I was told to replace Igniter control module.(DONE) ENGINE STILL DIES WHILE RUNNING Second inspection: 7/27/14. Milage- 141,312 Oil on the outside of the E8 connector at the engine ECU. Removed connector and found oil between connector and ECU. Cam sensor connector tap is broken. Told to replace cam position sensor and housing (DONE) 7/25/14- Cleaned off oil at cam sensor and at engine ECU. (Done) 8/18/14 Milage- 141,692, Died while running. (Operated without dying from 141,281 to 141,692. ) Now I am being told to replace ECU. Is the connector tap, part of the ECU? I Can't find a part # for an E8 connector at the ECU. If cleaning the ECU (without replacing connector) allowed it to run for 308 mi. (141,312 to 141,692, ) I wonder if the solution would be, to repair or replace the connector. The Toyota part number I am told to replace is, #89661-33340-84. (ECU) I am wondering if I have fallen into a Toyota dealer's shark tank. I think it would have been more correct to check the sensors first. That would have found the oil between the connector and leaking into the ECU. Not replace igniter control module, then cam position sensor and then recommend replacing ECM. ( #89661-33340-84) What do you suggest as the solution to the problem. Thanks, Rich
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Thursday, November 12th, 2020 AT 6:08 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If the ecu connector is broken go to a junkyard for it install it that will be your cheapest option
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Thursday, November 12th, 2020 AT 6:08 PM (Merged)
Tiny
RICH ABRAHAMSEN
  • MEMBER
  • 2 POSTS
New cam sensor and connector were installed 7 /27 14. Car ran for 308 mi. Before dying. Solution:replace ECM ( ECU)?
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Thursday, November 12th, 2020 AT 6:08 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuses and efi main relay then check to see if the white wire leading to the igniter has a 5 volt reference signal if it does the igniter is the problem. This shold be scanned for codes however.
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Thursday, November 12th, 2020 AT 6:08 PM (Merged)
Tiny
RANDALL DITGEN
  • MEMBER
  • 2 POSTS
  • 1994 TOYOTA CAMRY
Computer problem
1994 Toyota Camry 6 cyl Front Wheel Drive Automatic

hi my girl has a 1994 toyota camry with a 1mzfe 3.0 l v/6 engine. I think some1 has changed the ecm with the wrong unit. I am looking for the o.E.M part # so I can verify and replace with proper unit if needed. Thank you for your help and have a nice day
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Thursday, November 12th, 2020 AT 6:09 PM (Merged)
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Here is the ECU location. Check out the diagrams (Below). Please let us know what happens.
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Thursday, November 12th, 2020 AT 6:09 PM (Merged)
Tiny
RANDALL DITGEN
  • MEMBER
  • 2 POSTS
Thank you for the response. Unfortunately we are on a very fixed income (low to no $). And the dealer nearby says we would have to bring the car and get a diagnostic test and go from there. At a price of $75.00. If I knew the number I can get a free unit from picknpull where my friend works
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Thursday, November 12th, 2020 AT 6:09 PM (Merged)
Tiny
KB1507
  • MEMBER
  • 1 POST
  • 1993 TOYOTA CAMRY
Computer problem
1993 Toyota Camry 4 cyl Front Wheel Drive Automatic n/a miles

WHER IS THA MAIN COMPUTER BRAIN LOCATED
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Thursday, November 12th, 2020 AT 6:10 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
ECU engine control module located behind right side of dash above glove box


https://www.2carpros.com/forum/automotive_pictures/99387_Graphic1_156.jpg

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Thursday, November 12th, 2020 AT 6:10 PM (Merged)
Tiny
RCHASE4
  • MEMBER
  • 1 POST
  • 1990 TOYOTA CAMRY
Computer problem
1990 Toyota Camry 4 cyl Two Wheel Drive Automatic

Could you tell me where the main engine computer may be located on this vehicle?
I pulled the speedo cluster, radio, and glove box. Nothing there that I could see.

Thank you, ron
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Thursday, November 12th, 2020 AT 6:10 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
The engine computer or ECM is located under the dash near the center by the drivers side. Here is a diagram (Below) so you can see where it is.

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Thursday, November 12th, 2020 AT 6:10 PM (Merged)

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