Engine messages not received-engine does not crank

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

0helpful

1answer

Where is the neutral safety switch located on a 2013 Chevy Malibu LT 2.5L? How do you replace it?

I would drive it from point A to point B and then it wouldn't crank or start for 45 minutes! ??? Sorry but that would have nothing to do with neutral safety switch ! Something to do with electronics, when they get warm they fail till they cool off. Suggest you have a qualified repair shop do some testing , it's obvious you don't know how. Just replacing parts isn't the way. ( I have replaced relay and fuse box. I have also replaced the Crankshaft Position Sensor and the Ignition Switch) You have no clue how complex the electronics are on that vehicle, do you? What happens when you turn the key to start ? Circuit Description
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32. The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31. The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine.

Read full answer

Mar 18, 2023 • Cars & Trucks

0helpful

1answer

I have a 2008 Saturn Xr and I changed the thermostat and tried to start the car it will not turn over no click or anything. Changed starter but have same problem. I also tried two spare keys

Do yourself a favor an have it towed to a qualified repair shop. Just replacing parts is not the way to diagnose the problem . Viewing service information on how it works is . Hooking up a professional scan tool (not a code reader) an checking for DTC'S - diagnostic trouble codes in all the modules (computers ) on the vehicle . Bet you have no idea how the starting system even works on your that vehicle . 2008 Saturn Xr What ? astra - Vue - outlook - Aura ???? When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32. The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31. The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine.

Read full answer

Oct 05, 2019 • Saturn Cars & Trucks

0helpful

1answer

Loss of power 2011 chevy malibu

Do yourself a favor an have it towed to a qualified repair shop. You probably have no idea how this vehicles systems work . When you turn the key to start , the ignition switch is not directly connected to the starter solenoid .This vehicles ignition switch is a low voltage input to the BCM - body control module , the BCM sends a message over the GMLAN serial data network to the PCM - powertrain control module to start the engine . Any number of thing's can interupt that message causing a no start condition. The BCM - is what is called the PMM - power mode master , when it see's any input from the ignition switch - off / ACC/ run crank etc... it sets the power mode . It will energize relays turning thing's on or off . Welcome to the world of electronics .
Circuit Description
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32. The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31. The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine.

Power to many of this vehicle's circuits are controlled by the module that is designated the power mode master (PMM). This vehicle's 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 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

Read full answer

Sep 12, 2019 • Cars & Trucks

0helpful

1answer

I have a 2009Pontiac G6 and need to replace the starter can you help.

What makes you think it needs a new starter ? The complexity of the starter system on your vehicle could lead even a professional tech down the wrong path .
Turning the key to start does not send voltage directly to the S terminal on the starter solenoid .
Circuit Description
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32. The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31. The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine.

Read full answer

May 09, 2019 • Cars & Trucks

0helpful

1answer

My 2009 G6 will be running I put it in gear and it goes about 5ft shuts off then no power to the starter all the lights and things are one but no power to the starter

You need to under stand the electronic's involved in the starting of your vehicle. The ignition switch is not a direct connection to the s terminal on the starter solenoid .
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32. The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31. The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine.

Your best bet , have a qualified repair shop check it out . You need special tools ( factory or professional scan tool) , check BCM DTC'S - diagnostic trouble code's , Transmission , PCM - engine etc.... Also too view data , to see what data is not getting to where , If you don't know or understand any of this you really need to take it to some one who does .

Read full answer

Apr 11, 2019 • Cars & Trucks

0helpful

1answer

Have an 06 cobalt ss power on with key no crank, bypass clutch switch and jumped relay car starts and runs and drives. Turn off with key and try start with key no crank no click. Has new started and all...

Knowing how it works is key , the ignition switch is a low voltage input to the BCM - body control module . When the BCM see's start input it sends a message over the serial data network to the PCM / ECM - engine computer . When the engine computer reads this message it will energize the crank relay sending B+ voltage to the S terminal on the starter solenoid ,there by cranking the engine . Taking to a qualified repair shop that has a factory or professional scan tool to read BCM DTC'S - diagnostic trouble codes is what you should do , before you cause more problems .

Circuit Description
Moving the ignition switch to the START position signals the body control module (BCM) through discrete inputs from the ignition transducer that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the engine control module (ECM)/powertrain control module (PCM) requesting engine start. The ECM/PCM receives a 12-volt signal from the park/neutral position (PNP) switch or clutch pedal start switch notifying that it is safe to start the engine. There is a splice on this circuit in the fuse block-underhood that supplies power for the starter relay coil. The starter relay coil control circuit is then grounded by the ECM/PCM closing the switch in the starter relay suppling 12 volts to the S-terminal of the starter. Ground is supplied through the engine block.

Read full answer

Feb 14, 2019 • 2006 Chevrolet Cobalt SS

1helpful

1answer

What means the message, engine malfunction control unit

Usually that indicates your ecu ,(engine control unit/module may not be receiving the proper signal from your computer. If it is popping the fuse you might want to check the crank and cam sensors

Read full answer

Nov 02, 2017 • Cars & Trucks

0helpful

1answer

I got a 09 pontiac g6 wont start.there is no crank no clicks when i turn the ignition on but the engine light is on

You have know idea how the starting system works , an with the engine light on your best bet would be to have it towed to a qualified repair shop .
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32. The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31. The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine.

Read full answer

Apr 08, 2017 • Pontiac Cars & Trucks

0helpful

1answer

How do you replace the ignition switch on a 2002 buick century?

What do you mean no sound when turning key ? Does the car start an run ? Or the car doesn't crank ? Ignition switch's do not work the same way they did in the old days , especially on GM vehicles . The ignition switch is an input to the BCM - body control module , the BCM processes these inputs an then energizes relays to turn things on . Also sends messages to other modules for them to turn on or energize relays .
The power mode signal may be as simple as a B+ input wired to a particular ignition switch contact. If this is also the B+ supply to the module/device, the module/device will only operate with the ignition contact closed to B+. An example of this is the starter relay when it is wired directly to the CRANK/START contact of the ignition switch. When the CRANK/START contacts are closed, the starter relay is energized and provides a current source to the starter and starter solenoid. When the ignition switch leaves the CRANK/START position, the switch contacts open and the starter relay is de-energized. This removes the current source from the starter and solenoid and the starter operation stops.
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 receives 4 signals/circuits from the ignition switch. These are the Ignition 0, Ignition 1, Crank and Accessory 1 ignition switch signals/circuits.
To determine the correct power mode the BCM uses:
?€¢
The state of these signals/circuits, either switch closed (B+ = 1) or switch open (open = 0)

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

?€¢
The status of the engine run flag.

Important: Any ignition switch states not covered in this table indicates a DTC setting situation.
The chart indicates the modes detected and transmitted by the BCM:
Power Mode Selected/Expected
Engine Run Flag Serial Data
Sampled Ignition Signal State
Power Mode State
Accessory
Ignition 0
Ignition 1
Crank
OFF-LOCK
0
0
0
0
0
OFF
Accessory
0
1
0
0
0
ACCESSORY
RAP
0
1 to 0
0
0
0
RAP
OFF-UNLOCK
0
0
1
0
0
UNLOCK
RAP
0
1 to 0
1
0
0
RAP-UNLOCK
Run
0
1
1
1
0
RUN
Crank
0
0
1
1
1
CRANK
Crank
1
0
1
1
1
CRANK
Run
1
1
1
1
0
RUN
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 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 can check for the engine run flag status on the serial data circuits. 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 probably won't understand any of this info. your best but would be to take it to a qualified repair shop that has proper diagnostic test equipment !

Read full answer

Sep 29, 2016 • Buick Cars & Trucks

0helpful

1answer

I have a 08 Chevy Malibu that won't start. My dash light come on and so will my headlights. It had a good battery connection and the starter is good. It did have a blown ignition senor so we replaced that...

ignition sensor ? I been fix cars for over thirty years an that's a new one for me . I worked for a Chevy dealer for a number of years ! Plus a Cadillac , Pontiac , GMC etc... Maybe you mean ignition switch ? Or crankshaft position sensor ?
Now then lets see if we can decipher the problem your having , When you turn the key to the start position does anything happen ? I am trying to determine if you have a no crank - no start or a crank no start problem . Now which is yours doing or not doing ! When you turn the key to start the vehicle does the engine do anything?
You need to know how the starting system works , when you turn the key in the ignition , the switch sends a discreet voltage signal to the BCM - body control module , an if there is no anti-theft system problems the BCM sends a message on , well here read this from the service information manual for your vehicle .
Circuit Description
When the ignition switch is turned to the Start position, the body control module (BCM) receives battery voltage on the ignition 1 voltage circuit, and less than 5 volts on the off/run/crank voltage circuit. The BCM supplies voltage to energize the RUN/CRANK Relay 32. The BCM sends a high speed GMLAN serial data message to the engine control module (ECM) that the key is in the start position. The ECM receives the message from the BCM, and also receives a serial data message from the transmission control module (TCM) containing the shift lever position. If the shift lever is in Park or Neutral when ignition switch is turned to Start, the ECM supplies voltage to the START Relay 31. The START relay supplies voltage to the S terminal of the starter solenoid, through the 30 A STRTR Fuse 26, in order to crank the engine. This is a very complex system , an without a factory diagnostic scan tool it would be difficult too fix . I suggest you take this to the dealer or a ASE certified repair shop . You could make the problem worst then it is , You could spend thousands fixing it . Do you know what a GMLAN serial data communication network is ? Or how the Anti - theft system works ? I suggest you take it to someone who does !

Read full answer

Mar 15, 2015 • 2008 Chevrolet Malibu

Not finding what you are looking for?

View Most Popular

2003 Town & Country

Cars & Trucks

Where is the neutral safety switch located on a 2013 Chevy Malibu LT 2.5L? How do you replace it?

Cars & Trucks

90 views

Ask a Question

Usually answered in minutes!

Check Out the Latest Top Trucks Report!

View all Fixya Reports

Are you a Chrysler Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Have a manual for 2003 Chrysler Town & Country? Or just drag it here!

Related Topics:

Engine messages not received-engine does not crank

Add Your Answer

Attachments: Added items

Related Questions:

Where is the neutral safety switch located on a 2013 Chevy Malibu LT 2.5L? How do you replace it?