Question about Lexus ES 300

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How could i possibly obtain a schematic wiring diagram on a `99LexusES300,and location of control module & relays.

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Go to the lexus dealer where you live and ask for the schematics they are usually happy to help

Posted on Aug 13, 2008

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2003 Cadillac deville trunk randomly opens on its own when sitting and not running occasionally what could be the cause.


Do you know anything about automotive electrical testing ? how to read a wiring diagram ? How to use a DVOM - digital volt ohm meter ? You can find a free wiring diagram here http://www.bbbind.com/free_tsb.html

The trunk release is controlled by an electronic control moduel .
Trunk Release Relay
Output Controls
The rear integration module grounds the trunk relay when commanded ON. The rear compartment should release.

This vehicle has a very complex body control system of three different computers

The body control system consists of the following 3 modules:
• The Dash Integration Module (DIM)
• The Instrument Panel Module (IPM)
• The Rear Integration Module (RIM)
Each of the 3 body control modules integrate a number of functional systems under the control of a single module. Each module is connected to the Class 2 serial data circuit, many of the control functions are implemented by Class 2 messages.

. Rear Integration Module (RIM)
The various RIM inputs and outputs are described in the corresponding functional areas as indicated on the RIM electrical schematics.
The RIM functions include the following:
• Automatic level control
• CIGAR relay control
• Class 2 communication requiring RIM interaction
• Content theft deterrent
• Fuel door control
• Fuel level sensor input
• Heated seat control
• HVAC blower control
• LK/CYL relay control
• Park brake relay control
• Rear defog relay control
• Rear park assist chime control
• Retained accessory power (RAP) relay control
• Reverse relay control
• Transmission shift inhibit
• Trunk release relay control
• Various controls for the interior lamps


Luggage Compartment Description and Operation (General)
Rear Compartment Lid (trunk) release actuation is controlled by the following components.
• Rear Compartment Lid Release Relay
• Instrument Panel Module (IPM)
• Rear Integration Module (RIM)
• Valet Switch
• Rear Compartment Lid Release Switch
• Rear Compartment Lid Release Actuator
Battery voltage for the coil side of the trunk release relay is supplied through the Valet switch (with the valet switch in the OFF position) by the ALDL fuse located in the Underhood Fuse (Bussed) Block. Battery voltage for the switch side of the trunk release relay is supplied by the Body fuse located in the Rear Fuse (Bussed) Block. When the rear compartment lid release switch is momentarily pressed, it provides a ground circuit for the trunk release signal of the Instrument Panel Module (IPM). When the IPM senses that the switch has been activated, it sends a Serial Data Class 2 message to the Rear Integration Module (RIM). The RIM then provides a path to ground on the F/TNK DR REL relay control circuit. The trunk release relay is then energized, and battery voltage is applied through the switch side contacts of the trunk release relay to the rear compartment lid release actuator. The actuator is connected to ground through a ground splice pack located at the left rear corner of the rear compartment, near the left tail lamp connector.

Mar 01, 2017 | Cadillac DeVille Cars & Trucks

1 Answer

I have a 2008 nissian Altima 3.5 I changed the battery and starter and the car starts but the starter wont disengage and making a horrible noise and is the same thing that made me change the starter


You need to look at a wiring diagram to see what controls the starter ! Possibly a starter relays contacts are stuck closed keeping B+ voltage applied to the starter ! You can find free wiring diagrams at http://bbbind.com/free_tsb.html .I also see a electronic control module is involved . There are two relays starter control relay and starter relay !

Dec 14, 2016 | Cars & Trucks

2 Answers

2004 ford explorer when you turn the switch on the fuel pump fuse blows . i un pluged fuel pump it still blows . i went and un pluged fuel control module and it doest blow


Unplugging the fuel control relay or module will ensure no current is entering the wire heading towards the fuel pump. The likelihood is there is a short circuit somewhere along that part of the circuit though it is possible the relay could be faulty.

Ideally, with the aid of a circuit diagram, the wire should be traced from the source at the fuel pump module along its length until the fault is discovered. There is intelligent equipment available that can locate short circuits.

Mar 03, 2015 | Ford Cars & Trucks

1 Answer

How do i locate the engine control module of a Mitsubishi montero sport


go online search electrical schematic / wiring diagram that shows all wiring and electrical component locator for your particular vehicle include model , year and engine size

Jan 26, 2015 | Mitsubishi Montero Sport Cars & Trucks

1 Answer

98 chevy prizm headlights will not go off when turned off


If you can't turn off the headlamp's maybe one of the relay's contacts or stuck closed . There are three relays , head , dimmer and DRL . I wouldn't go condemning the DRL control module before testing it .

Mar 26, 2017 | 1998 Chevrolet Prizm

1 Answer

Location for ac relay on 97 ford taurus


Are you talking the ccrm? Those relays are soldered into the circuit board. Some of my ford info, says if the relays in the diagram have no terminal pin numbers, the relays are soldered into the circuit board, you can't pull it out. Sometimes It may be possible to use an external relay, wire it up properly and it should work.
If your talking about the ccrm/ constant control relay module, I'd probably just replace it, if that is the problem.
If your talking about a different relay then, I need more info?

ccrm-n3nk3f5j1gnnqecfgqcmbpzk-2-0.jpg

May 30, 2012 | Ford Taurus Cars & Trucks

2 Answers

Where located fuel sensor Suzuki Ario 2003


Component location diagrams for most 2003 Suzuki Aerio cars and light trucks sold in the U.S. from 1990+.
clsk2003aeri003.gifIgnition System Components Location Diagram for 2003 Suzuki Aerio 2.0 L4 GAS
Components on diagram:
  • TP Sensor
  • Ignition Coil
  • ECM
  • MAF Sensor
  • CMP Sensor
  • clsk2003aeri007.gifElectronic Shift Control System Components Location Diagram for 2003 Suzuki Aerio 2.0 L4 GAS
    Components on diagram:
  • Data Link Connector
  • Transmission Range Sensor
  • Throttle Position Sensor
  • Pressure Control Solenoid Valve
  • Battery
  • clsk2003aeri010.gifInstrument Panel For Connector Layout Diagram Diagram for 2003 Suzuki Aerio SX 2.0 L4 GAS
    Components on diagram:
  • Clutch Switch
  • Thermistor
  • Brake Light Switch
  • Blower Motor Relay
  • Heater Fan Motor
  • clsk2003aeri011.gifInstrument Panel Harness Diagram for 2003 Suzuki Aerio SX 2.0 L4 GAS
    Components on diagram:
  • Wiper Switch
  • Washer Switch
  • Data Link Connector
  • Turn Signal Relay
  • Radio
  • clsk2003aeri015.gifHeadlight System Location Diagram for 2003 Suzuki Aerio SX 2.0 L4 GAS
    Components on diagram:
  • Headlight Relay
  • Headlight
  • Clearance Light
  • Headlight Diode
  • Clearance Light Relay
  • clsk2003aeri022.gifFuel System Components Diagram for 2003 Suzuki Aerio SX 2.0 L4 GAS
    Components on diagram:
  • Fuel Pump Relay
  • Fuel Tank Pressure Sensor
  • EVAP Canister
  • Fuel Tank Pressure Control Valve
  • Fuel Filler Cap
  • clsk2003aeri027.gifFloor For Single Unit Parts Diagram for 2003 Suzuki Aerio 2.0 L4 GAS
    Components on diagram:
  • Wheel Speed Sensor
  • ABS Control Module
  • G Sensor
  • Air Bag Control Module
  • EVAP Canister Vent Valve
  • clsk2003aeri030.gifInstrument Panel For Ground Point Diagram for 2003 Suzuki Aerio SX 2.0 L4 GAS
    Components on diagram:
  • Instrument Panel Ground Points
  • clsk2003aeri036.gifEngine Compartment For Single Unit Parts Diagram for 2003 Suzuki Aerio 2.0 L4 GAS
    Components on diagram:
  • Throttle Position Sensor
  • Horn Relay
  • Radiator Fan Control Relay
  • Cruise Control Module
  • Condenser Fan Relay
  • clsk2003aeri037.gifEngine Compartment Components Diagram for 2003 Suzuki Aerio SX 2.0 L4 GAS
    Components on diagram:
  • MAP Sensor
  • Knock Sensor
  • Noise Suppressor
  • Heated Oxygen Sensor
  • Sep 18, 2011 | 2003 Suzuki Aerio

    1 Answer

    Location of fuel pump reset


    Hi going through a wiring schematic shows me that this car is not equipped with an inertia switch. There is simply a fuse, relay, engine control module, and the fuel pump in this wiring. This relay would be located on the right hand side of the dash. Here is an illustration showing the placemtn of the relay and the wiring.
    The optima does not have a fuel pump reset switch, the fuel pump is controlled by a relay which is actuated by the engine control module...
    ameezle_1.png

    Jun 02, 2011 | 2004 Kia Optima

    1 Answer

    I need to know what each color means on my distributor???


    Review this guide as reference; this Electrical Schematic Diagram applies for 1994 Accord Coupe series of model. Here you will find complete explanation about electrical system of the vehicle. Started from Troubleshooting (tips and precautions) on handling the electrical system, in this manual you will be guided step by step examining each electrical component installed and its connection for example in Wire Harness and Ground Location, started from Engine Compartment, wiring harness is shown from engine ground cable, starter cable, and battery ground cable.

    These 359 pages of pdf.fieltype manual is divided into some sections which are Wire Color Code, Relay and Control Unit Location, Wire Harness and Ground Location, Air Conditioning System Circuit, Anti-lock Brake System, Battery, Blower Control, Charging System, Cruise Control, Fan Control, Fuel Pump, Fuses, Ground Distribution, Heater Control, Ignition System Control, Lighting System, and etc.
    Download the complete 1994 Accord Coupe Electrical Schematic Diagram here.

    You can also find complete workshop manual of 1994 Accord Coupe here.

    Pass: freepdfmanual.com

    Good luck.

    Sep 21, 2009 | 1997 Honda Accord

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