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Code U0073 Cranks, but does not start. Snap-on scan tool shows (Fuel Disabled) in the data list

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Posted on Jan 02, 2017

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So is your ABS light on? Computer won't hold a code for the ABS light. There's 4 sensors one at the back of each wheel one of them is bad. As longs as your brakes are working normally you can at your time to fix it. ABS was made for panic stops only thats why the pedal pumps fast when you stop hard.

Posted on May 27, 2009

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SOURCE: motor cranks but will not start

now you must check for fuel delivery. find the shrader valve remove cap push the center as if letting air out of a tire, if there is a sudden burst of fuel then fuel pump is good but if not then check for electricl supply back at the fuel tank,before replacing the fuel pump.

Posted on Jan 10, 2010

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2008 Milan, code U0073, where do I begin in order to fix the problem? It also has code P0020


U0073 Control Module Communication Bus Off Digital Signal Processor REFER to Section 418-00 . U0073 Control Module Communication Bus A Off EATC Module REFER to Section 418-00 . U0073 Control Module Communication Bus A Off SJB REFER to Section 418-00 . U0073 Control Module Communication Bus A Off TCM (FNR5 Speed Transaxle) REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. U0073 Control Module Communication Bus A Off TCM (6 Speed Transaxle) REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Your best bet , take it to a qualified repair shop . You do not have the knowledge or diagnostic test equipment to diagnose this . Do you know what C.A.N. - controller area network is ?
Communications Network Vehicle communication utilizes both medium and high speed controller area network (CAN) communications. CAN is used for many modules to communicate with each other on a common network. CAN in-vehicle networking is a method for transferring data among distributed electronic modules via a serial data bus. Without serial networking, intermodule communication requires dedicated, point to point wiring resulting in bulky, expensive, complex, and difficult to install wiring harnesses. Applying a serial data network reduces the number of wires combining the signals on a single network. Information is sent to the individual control modules that control each function.
The vehicle has 2 module communication networks:
  • Medium speed (MS) CAN
  • High speed (HS) CAN
Both networks are connected to the data link connector (DLC). This makes diagnosis and testing of these systems easier by allowing one scan tool to be able to diagnose and control any module on both networks from one connector. The DLC can be found under the instrument panel between the steering column and the audio unit.

016 CAN Communications

P0020 - Intake Camshaft Position Actuator Circuit/Open (Bank 2) Description: See the description for DTC P0010. Possible Causes: See the possible causes for DTC P0010. Diagnostic Aids: See the diagnostic aids for DTC P0010. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to Pinpoint Test HK .

Nov 29, 2017 | Cars & Trucks

1 Answer

I have 1994 saturn 4 cylinder series sc1 it rolls over and tries to fire but it won't start changed the plugs didn't help.


Does it have spark to the spark plugs , fuel pressure , engine have compression ?
The engine cranks over but doesn't start an run . Not rolls over !
This is a cranks - no start condition . You people need to quit trying to play mechanic . Do yourself a favor an quit being cheap ,take it to a qualified repair shop . Do you know what scan data is ? It takes testing an special tool to diagnose these type problems . Not guess work . An asking people on here to suggest what it could be . Are you prepaired to spend more money then needed , replacing parts .


047 Engine Hard to Start or No Start Scan Data for Ignition

048 Engine Hard to Start or No Start Scan Data for Starting Problems

Jul 01, 2017 | Saturn Cars & Trucks

1 Answer

My 2005 Nissian Senta cranks but won't start and nothing shows up on diagnostic scrambler


diagnostic scrambler ???? What's that or what do you think it is ? Most tech's call it a diagnostic scan tool . Cranks but won't start , what's missing ? Fuel , spark , engine compression ? Do you know how to test for these thing's ?
No Start Diagnostic Basics EricTheCarGuy

Apr 13, 2017 | 2005 Nissan Sentra

1 Answer

2000 buick lesabre leveling compressor won't turn on I took off n hooked to battery and works that way I checked all relays and fuses and there good


This is the way you start diagnosing this system !
Automatic Level Control Diagnostic System Check
Install a scan tool. Does the scan tool power up?
Go to Step 2
Go to Scan Tool Does Not Power Up in Data Link Communications

2
  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to establish communication with the Rear Integrated Module (RIM).
Does the scan tool communicate with the RIM?
Go to Step 3
Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications
Select the automatic level control display DTC function on the scan tool.
Does the scan tool display any DTCs?
Go to Step 4
Go to Symptoms

4
Does the scan tool display any DTCs which begin with a "U"?
Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Connector Diagnosis
Go to Step 5

5

Does the scan tool display DTC B1007 or B1009?
Go to Diagnostic Trouble Code (DTC) List/Type in Body Control System
Go to Step 6

6

Does the scan tool display DTC B1327?
Go to Diagnostic Trouble Code (DTC) List/Type in Engine Electrical
Go to Diagnostic Trouble Code (DTC) List/Type
This is one you should take to a ASE certified repair facility , there are electronic modules involved you have no idea about !

May 16, 2015 | 2000 Buick LeSabre

2 Answers

Why cranks over doesn't start


Explain your issue, starting from the beginning.

Jan 31, 2015 | 2008 Jeep Liberty

1 Answer

Cranks but no start only after running a while good fuel pump pressure


I would put a scan tool on it there might be a soft code listed.

Autozone does this for free. Eliminate some guess work, this is a pretty "general" question that could have many possible solutions.

Hope this helps.

Oct 04, 2010 | 1994 Pontiac Grand Am

1 Answer

1998 plymouth breeze wont start {sometimes} cranks fine, use to start after sitting for 15 minutes. now sometimes hours or days, changed computer , coil, fuel pump, plugs, wires, filter, and crankshaft...


Do you know anything diagnostic's ? Using a more advanced scan tool to look at sensor data ? How to test automotive electrical testing ? Not just replacing part's . Learning how to diagnose , using tool's to test fuel pump pressure , pulling a spark plug to check for spark . Sounds like you should have a qualified repair shop diagnose the problem ,if you haven't all ready .
048 Engine Hard to Start or No Start Scan Data for Starting Problems
064 Emission Tests Scan Data Pre Check

Testing ,not guessing is the way to a fix.

Jan 01, 2018 | 1998 Plymouth Breeze

1 Answer

Motor cranks but will not start


now you must check for fuel delivery. find the shrader valve remove cap push the center as if letting air out of a tire, if there is a sudden burst of fuel then fuel pump is good but if not then check for electricl supply back at the fuel tank,before replacing the fuel pump.

Jan 10, 2010 | 2003 Chevrolet S-10

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