Question about 1995 Ford Windstar

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Ignition switch how do i replace the ignition control module

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2006 grand am starts by its self won't shut off


What after market products do you have , if any ? Have you done any electrical repairs ? Could be a ignition switch problem , GM has had switch problems for sure . The starting of your vehicle is computer controlled by the BCM - body control module . The ignition switch could be sending a wrong input to the BCM ,causing it to start .Power to many of this vehicle's circuits are controlled by the module that is designated the power mode master (PMM). This vehicle PMM is the body control module (BCM). The PMM controls which power mode (Run, Accessory, Crank, Retained Accessory Power, or Off) is active.
Serial Data Power Mode
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle, the PMM is the body control module (BCM). The PMM receives 3 discrete ignition switch signals to differentiate which power mode will be sent over the Serial Data circuits. The table below illustrates the state of these inputs in correspondence to the ignition switch position: If this came to the dealer I work at the first thing I would check is the ignition switch inputs to the BCM . I would use Tech 2 , GM factory scan tool .

Relay Controlled Power Mode
The body control module (BCM) uses the discrete ignition switch inputs ignition 1, ignition 3 and crank to distinguish the correct power mode. Once the BCM has determined the power mode selected by the vehicle operator it will energize the Ignition relay, Run relay and retained accessory power (RAP) relay, depending on which power mode is selected.

good luck !

Feb 13, 2017 | 2006 Pontiac Grand Am

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2000 cadilac seville occasionally doesnt respond when ignition key is inserted, no memory position adjustments, no starter when key turned. is it key or ignition switch. everything usually works fine


Is the security light lit on the instrument when it doesn't start ? The ignition switch on your vehicle doesn't work like you would probably think it does . The ignition switch is input signal to the body control system .
Body Control System Description
The body control system consists of three modules and their associated electrical controls. These modules are as follows:
• The dash integration module (DIM), located on the right hand side of the instrument panel, near the blower motor.
• The instrument panel integration module (IPM), located in the center of the instrument panel, above the radio.
• The rear integration module (RIM), located on the right hand rear of the passenger compartment, behind the rear seat.
Each module integrates input and output controls for two or more functional areas. The inputs and outputs are wired to the closest module to minimize the lenth and amount of the wiring used. All three modules communicate on the Class 2 serial data line, allowing data to be shared among them, as well as with other Class 2 modules on the vehicle as needed.

Each of the three body control modules integrate a number of functional systems under the control of a single module. Each of the modules are connected to the Class 2 serial data line.
Dash Integration Module (DIM)
The dash intergration module (DIM) functions include the following:
• Power moding control (ignition switch states) over Class 2 serial data line
• Control of exterior lamps
• Interior lamps and incandescent dimming
• Steering wheel controls
• Horn relay control for theft activation
• Low side temperature for HVAC compressor
• Hood ajar switch input (export)
• Storage of the clock settings and, sending a message on the class 2 serial data line in response to requests from other modules.

Instrument Panel Integration Module (IPM)
The instrument panel integration module (IPM) functions include the following:
• Front HVAC air delivery and temperature controls
• Ambient light sensor input and twilight delay input for headlights control
• Foglight switch inputs
• I/P dimmer switch input
• Traction control switch input
• Interior lamps switch input
• Key in ignition switch input from the ignition switch
• Fuel door and rear compartment lid release switch input
• Ignition switch headlight control

Rear Integration Module (RIM)
The rear integration module (RIM) functions include the following:
• Fuel level sensor input
• Heated seat controls
• HVAC blower control
• Rear defogger control
• Park brake relay controls
• Various controls for the interior lamps
• Reverse control for the backup lamps and automatic day/night mirror
• Rear foglights control
• Fuel door and rear compartment lid release controls
• Retained accessory power (RAP) control for the sunroof control module
• Ajar switch and tamper switch inputs from the rear compartment lid
• Content theft alarm

At the dealer we would hook up a scan tool and look at the ignition switch inputs to the DIM to see if has correct inputs . Also we would check DTC'S diagnostic trouble codes .
DTC B1805 Ignition Switch Problem

Normal vehicle Class 2 communication does not begin until the system power mode has been identified. The dash integration module (DIM) monitors four discrete wires from the ignition switch contacts in order to determine the present power mode (ignition switch position). The DIM communicates the system power mode to all Class 2 modules on the Class 2 serial data line.
http://www.public.asu.edu/~pheanis/documents/VBI_CLASS2.pd

Jan 12, 2017 | 2000 Cadillac Seville

1 Answer

How to replace starter switch assembly in 2001 pontiac bonneville


Starter switch ? You do mean ignition switch , the thing on the dash or steering column that you stick the key in ! You car not starting ? The ignition switch isn't the same anymore , sends Discrete Ignition Signals to a module ,in the case of your vehicle it is the DIM - dash integrated module.
The body control system consists of the following 3 modules:
?€¢
The dash integration module (DIM)


?€¢
The instrument panel integration 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 of the modules are connected to the Class 2 serial data line; many control signals are implemented by Class 2 messages.
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle the PMM is the DIM. The PMM receives 4 signals from the ignition switch.
To determine the correct power mode the PMM uses the following circuits:
?€¢
Accessory voltage


?€¢
Ignition 1 voltage


?€¢
Ignition 3 voltage


?€¢
Off/Run/Crank voltage


Your best bet would be to take to a repair shop that has knowledge of this type system . You probably don't need an ignition switch.
Discrete Ignition Signals Those modules that have discrete ignition signal inputs also remain in the state dictated by the last valid PMM message received on the serial data circuits. They then check the state of their discrete ignition input to determine the current valid state. If the discrete ignition input is active, battery positive voltage, the modules will fail-safe to the RUN power mode. If the discrete ignition input is not active, open or 0 voltage, the modules will fail-safe to OFF-AWAKE. In this state the modules are constantly checking for a change status message on the serial data circuits and can respond to both local inputs and serial data inputs from other modules on the vehicle.

Oct 04, 2016 | 2001 Pontiac Bonneville SLE

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Where is the body control module on 2006 HHR


Body Control Module (BCM)
Under the I/P below the radio on the right side of the center console.
Do you know what the purpose of the BCM is ?
The body control module (BCM) has a bussed electrical center integrated into the housing. Body control relays and fuses are installed directly on the BCM, which simplifies wiring and junction blocks on the vehicle. The body control system consists of the BCM and its associated controls. Battery positive voltage is provided to the BCM from IBCM BATT 1 fuse and the IBCM BATT 2 fuse in the underhood fuse block. The module grounds are wired to ground G201, G203 and G305. The BCM is wired to the GMLAN High speed serial data buss, and the GMLAN Low speed serial data buss, as well as discrete input and output terminals to control the functions of the vehicle's body.
Serial Data Gateway
The body control module (BCM) in this vehicle functions as a translator between the High and Low speed GMLAN busses. The 2 communication protocols use the BCM to translate communicated serial data messages between the control modules over the 2 serial data busses.
Power Mode Master
This vehicles body control module (BCM) functions as the power mode master (PMM). Refer to Power Mode Description and Operation for a complete description of power mode functions.
Serial Data Power Mode Master
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle, the PMM is the body control module (BCM). The PMM receives 3 discrete ignition switch signals to differentiate which power mode will be sent over the Serial Data circuits. The 3-wire Ignition Switch table below illustrates the state of these inputs in correspondence to the ignition switch position:
Relay Controlled Power Mode
The body control module (BCM) uses the discrete ignition switch inputs Off/Run/Crank, Accessory, and ignition 1, to distinguish the correct power mode. The ignition 1 circuit is also routed to the Run/Crank relay for relay controlled power feeds during the appropriate power mode. The BCM, after determining the desired power mode, will activate the appropriate relays for that power mode.
Reprogram the body control module (BCM) after replacement. Refer to Control Module References .




Do you

Sep 24, 2015 | Cars & Trucks

1 Answer

I have a 2009 g envoy and when I turn my key it wont do anything.replaced the ignition switch and it has worked fine for about 5 months and now it is doing the same thing sometimes it will start right


On GM vehicles starting back in mid 2000's , maybe even before that. They started using inputs to the body control module from the ignition switch, from there the BCM controls all vehicle systems .
Power Mode Description and Operation
Serial Data Power Mode
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle the PMM is the body control module (BCM). The BCM uses 3 signals from the ignition switch. These are the Ignition 0, Ignition 1, and Accessory.
To determine the correct power mode the BCM uses:
?€¢
The state of these signals


?€¢
The sequence of switch closures received by the BCM


?€¢
The status of the engine run flag

The chart indicates the power modes detected and transmitted by the BCM:

Correct Ignition Switch Inputs
Ignition Key Position

Power Mode Parameter

Engine Running

Sampled Ignition Signal State

Accessory

Ignition 1

Ignition 0
OFF
Off-Awake or RAP
No
Inactive
Off
Off
UNLOCK
Unlock or RAP Unlock
No
Inactive
Off
On
ACC
Accessory
No
Active
Off
On
ON
Run
No
Active
On
On
START
Crank
No
Inactive
On
On
ON
Run
Yes
Active
On
On
Fail-safe Operation
Since the operation of the vehicle systems depends on the power mode, there is a fail-safe plan in place should the body control module (BCM) fail to send a power mode message. The fail-safe plan covers modules with discrete ignition signal inputs as well as those modules using exclusively serial data control of power mode.
Serial Data Messages The modules that depend exclusively on serial data messages for power modes stay in the state dictated by the last valid BCM message until they receive the engine status from the powertrain control module (PCM). If the BCM fails, the modules monitor the serial data circuit for the engine run flag serial data. If the engine run flag serial data is true, indicating that the engine is running, the modules fail-safe to Run. In this state the modules and their subsystems can support all operator requirements. If the engine run flag serial data is false, indicating that the engine is not running, the modules fail-safe to OFF-AWAKE. In this state the modules are constantly checking for a change status message on the serial data circuits and can respond to both local inputs and serial data inputs from other modules on the vehicle.
Discrete Ignition Signals Those modules that have discrete ignition signal inputs also remain in the state dictated by the last valid BCM message received on the serial data circuits. They then check the state of their discrete ignition input to determine the current valid state. If the discrete ignition input is active, B+, the modules will fail-safe to the RUN power mode. If the discrete ignition input is not active, open or 0 voltage, the modules will fail-safe to OFF-AWAKE. In this state the modules are constantly checking for a change status message on the serial data circuits and can respond to both local inputs and serial data inputs from other modules on the vehicle.
You would need a scan tool that can read data from the BCM . What may be the problem is a lose connector , these pin's at connectors are tiny and doesn't take much for one to become lose.

Jan 16, 2015 | 2009 GMC Envoy

1 Answer

I have a 2000 Mercedes SL500. Cluster is flashing 'start error' and I have a P1570 code. Engine cranks but won't start. Starter has an abbreviated spin time too


code p1570 refers to ignition switch control module/ECM-attempted theft/data bus/not compatible ===causes --wiring--connections--trouble codes stored in other system--ignition switch control module---ECM
If this is a recent problem I would suggest that the ignition switch module be checked/replaced.

Nov 03, 2014 | Mercedes-Benz Mercedes Sl 500 Class Sl500...

1 Answer

No spark from new coil


Sounds like the problem lies in the profile Ignition Pickup (PIP) i.e Crank Sensor or in the Ignition Control Module (ICM), once the ICM gets the PIP signal, it starts to switch the Ignition Coil on, Once the Ignition Coil gets this switching signal, it starts to Spark away, I think you are not getting signal from PIP to ICM to get spark. I did a quick search online and if you do need to replace your Ignition Control Module this site looks like it has cheap prices, free shipping and great reviews http://www.buyautoparts.com/ignition-control-module.html

Oct 24, 2013 | Ford Festiva Cars & Trucks

1 Answer

I have an 88 bronco 351w and im only getting have the voltage to my coil 6v. i recently replace the ignition control modual 2 weeks ago any ideas???


Ignition control module? There is a IDM , this module,trouble shoot this one instead. PCM uses IDM with the spout to verify coil signal from the TFI module. So basically you will need to inspect the TFI or replace and also check under the steering column there is the ignition switch (electrical switch), if that fails then you will get 6 volts to coil

Jun 01, 2011 | 1988 Ford Bronco

3 Answers

Ignition control module on a 2001 Chevy Impala


There is a switch relay that plugs behine the ignition switch cylinder.You would have to take apart the dash console to take it apart to replace it.Also helps solve a few problem on the 2001 chevrolet impala, with heat gauage not working and a/c not blowing cold air anymore.Replacing it, should fix the problem with that.

Apr 11, 2010 | 2001 Chevrolet Impala

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