Question about 2000 Pontiac Montana

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My on board diagnostic test failed, said no

My on board diagnostic test failed, the communication established part failed. what do i have to get fixed?

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I will try this thank you so much.

Posted on Jul 15, 2014

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Ok I believe your talking about a scan-tool related problem. You plugged it in and read an error message.
This message came up because of a connection or power related issue. Make sure the ignition is in the run position (with the engine running or not running). Check the plug on the scan-tool, check for bent or damaged pins. Check the OBD2 port for broken wires or maybe a pin that got pushed out of the terminal block. Check the fuses, see if any of them are blown. I hope this helps.

Posted on May 06, 2010

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Posted on Jan 02, 2017

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On my 05 Ford mustang v6, my fan only comes on when i turn my AC on and makes a funny noise when I turn the AC on, diagnostic test gave me a code, u1900, what does this mean and how do I fix it?


Where did you pull this code from ? What type scan tool did you use ,or was it a code reader ? Do you know about data communication networks on modern cars ? A U codes indicate a communication problem on the data network .
U1900 CAN Communication Bus Fault-Receive Error Audio Control Module REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error ABS Module REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error Instrument Cluster REFER to Section 418-00 . U1900 CAN Communication Bus Fault-Receive Error SJB REFER to Section 418-00 . The thing that would make this easier to diagnose would be to have a factory scan tool or a professional grade . Need to know what modules can communicate with scan tool .Honestly ,Don't think you can fix this . Dealer or ASE certified repair shop .Do you know what C.A.N. - controller area network is ? The vehicle has 3 module communications networks:
  • high speed controller area network (CAN)
  • medium speed CAN
  • international standards organization (ISO) 9141 communications network
The diagnostic tool connects to the communications networks through the data link connector (DLC). The DLC allows a diagnostic tool access to diagnose and test the vehicle systems of any module on the communications networks.
All 3 communications networks are connected to the DLC. This makes diagnosis and testing of these systems easier by allowing one diagnostic tool to be able to diagnose and control any module on the 3 communications networks from one common connector. The DLC can be found under the instrument panel between the steering column and the driver door. Which module doesn't communicate with scan tool ?
Symptom Chart Condition Possible Sources Action
  • The anti-lock brake system (ABS) module does not respond to the diagnostic tool
  • Circuit or connection in the high speed controller area network (CAN)
  • ABS module
  • Go To Pinpoint Test A .
  • The audio unit does not respond to the diagnostic tool
  • Circuit or connection in the medium speed controller area network (CAN)
  • Audio unit
  • Go To Pinpoint Test B .
  • Circuit or connection in the medium speed controller area network (CAN)
  • Audio unit
  • Go To Pinpoint Test B .
  • The instrument cluster does not respond to the diagnostic tool - high speed controller area network (CAN)
  • Circuit or connection in the high speed CAN
  • Instrument cluster
  • Go To Pinpoint Test C .
  • The instrument cluster does not respond to the diagnostic tool - medium speed controller area network (CAN)
  • Circuit or connection in the medium speed CAN
  • Instrument cluster
  • Go To Pinpoint Test D .
  • The powertrain control module (PCM) does not respond to the diagnostic tool
  • Circuit or connection in the high speed controller area network (CAN)
  • PCM
  • Go To Pinpoint Test E .
  • The restraint control module (RCM) does not respond to the diagnostic tool
  • Circuit or connection in the international standards organization (ISO) 9141 communications network
  • RCM
  • Go To Pinpoint Test I .
  • The smart junction box (SJB) does not respond to the diagnostic tool
  • Circuit or connection in the medium speed controller area network (CAN)
  • SJB
  • Go To Pinpoint Test F .
  • No high speed controller area network (CAN) communication
  • Circuit or connection in the high speed CAN
  • High speed CAN modules
  • Go To Pinpoint Test G .
  • No medium speed controller area network (CAN) communication
  • Circuit or connection in the medium speed CAN
  • Medium speed CAN modules
  • Go To Pinpoint Test H .
  • No international standards organization (ISO) 9141 communications network communication
  • Circuit or connection in the ISO 9141 communications network circuit
  • Restraint control module (RCM)
  • Go To Pinpoint Test I .
  • No module/network communication - no power to the diagnostic tool
  • Data link connector (DLC) C251
  • Bussed electrical center (BEC) fuse 4 (30A)
  • Smart junction box (SJB) fuse 8 (10A)
  • Circuitry
  • Diagnostic tool
  • Go To Pinpoint Test J .

Apr 11, 2016 | Ford Cars & Trucks

1 Answer

Good day, why craftsman diagnostic scanner show 'communication error' whenever it's scanner Nissan vehicles


PDF]Communications Could Not Be Established with Your ...

www.wisconsinvip.org/WivipPublic/PDF/.../noncom052108.pdf
May 21, 2008 - computer alerts motorists of problems with the vehicle's emission control ... tampered with and the connection to the on-board diagnostic (OBD) ... itspower from the same circuit as the cigarette lighter. ... scan tool, connected to the data link connector (DLC) under the dash, not ... General Program Questions.Missing: craftsman ‎whenever

[PDF]OBDII ABS and Airbag Scan Tool - Actron

https://actron.com/craftsman/scan-tool/.../568593-Craftsman-39853-MN...
OBDII ABS and Airbag. Scan Tool. Model 39853 .... OBD II Diagnostic Trouble Codes (DTCs) . .... Program Mode . .... Error Messages . ... Vehicle Communication Fault ...... No warranty (expressed or implied) can be made for its accuracy or completeness... Go to www.actron.com/craftsman to download the Scanning Suite.

Scan Tool Help

www.scantoolhelp.com/
A scan tool is a must for automotive diagnostic work today. ... 1996 and newervehicles (one exception is Nissan), and (2) counting the series of flashes can be confusing. ... II monitors (ready means the monitor has completed its self-check process). ... with bidirectional (two-way) communication capability and the proper ...Missing: craftsman ‎whenever

Automotive Diagnostic Scanners -- OBD-I and OBD-II

www.mikeogara.net/improve_your_car/auto_scanners/

Jan 31, 2016 | Nissan Cars & Trucks

1 Answer

I have a 2004 envoy xuv and my service 4wd light came on but I don't have any lights on the switch and it won't change into anything and I don't hear anything trying to engage and lights don't blink


The Automatic Transmission Diagnostic System Check is an organized approach to identify a problem created by an automatic transmission. The Diagnostic System Check - Engine Controls in Engine Controls - 4.2L or Diagnostic System Check - Engine Controls in Engine Controls - 4.8L, 5.3L and 6.0L is the diagnostic starting point for an automatic transmission complaint. The Diagnostic System Check - Engine Controls in Engine Controls - 4.2L or Diagnostic System Check - Engine Controls in Engine Controls - 4.8L, 5.3L and 6.0L directs you to the next logical step for diagnosing a transmission concern. Perform this check only if there is a driveability complaint or if you have been directed here from another service information section.
Follow the table to help reduce diagnostic time and help prevent unnecessary replacement of good parts.
  1. Install a scan tool.
  2. Important: Check for applicable service bulletins before proceeding with this test. Perform this test only if there is a driveability complaint or if you have been directed to this table from another section in the service information.
    Important: Do not turn the ignition OFF when performing this diagnostic procedure. Do not clear the DTCs unless instructed by this diagnostic procedure.
  3. Turn ON the ignition, with the engine OFF.
Does the scan tool turn ON?
--
Go to Step 2
Go to Diagnostic Starting Point - Data Link Communications in Data Link Communications

2
Is the MIL ON?
--
Go to Step 3
Go to Malfunction Indicator Lamp (MIL) Inoperative in Engine Controls - 4.2L or Malfunction Indicator Lamp (MIL) Inoperative in Engine Controls - 4.8L, 5.3L and 6.0L

3
Attempt to establish communication with the PCM controller module or modules.
Does the scan tool communicate with the PCM control module or modules?
--
Go to Step 4
Go to Diagnostic Starting Point - Data Link Communications in Data Link Communications

4
Important: Diagnostic Trouble Codes (DTCs), engine performance, and transmission default actions can greatly affect the transmission performance. Ensure that these items are not the cause of a transmission concern.
Use the scan tool Capture Info function in order to save or capture (Store Info) any DTC Information.
Are there any DTCs present?
--
Go to Diagnostic Trouble Code (DTC) List/Type
Go to Symptoms - Automatic Transmission
Your best bet is take to transmission repair shop or the dealer

Dec 04, 2015 | Cars & Trucks

1 Answer

How can i fix my odometer on my 2002 envoy


The IPC calculates the mileage based on the vehicle speed signal circuit from the engine control module (ECM). The odometer will display 'error' if an internal IPC memory failure is detected. The odometer displays either miles or kilometers as requested by the activation of the Personalization button on the steering wheel controls. IPC - instrument panel cluster .
Schematic Reference: Instrument Cluster Schematics

1

Did you perform the Instrument Cluster Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Instrument Cluster

2

?€¢
Turn the ignition ON.


?€¢
Activate the trip reset button.

Does the odometer display switch between trip and odometer?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3

3

Important: Program the replacement instrument panel cluster (IPC).
Replace the IPC. Refer to Instrument Cluster Replacement .
Did you complete the replacement?
Go to Step 4
--

4

Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2
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 the ignition ON, with the engine OFF.
  2. Attempt to establish communication with the following control modules:
?€¢
Body Control Module (BCM)


?€¢
Driver Door Module (DDM)


?€¢
Electronic Brake Traction Control Module (EBTCM)


?€¢
Inflatable Restraint Diagnostic Module (SDM)


?€¢
Instrument Panel Cluster (IPC)


?€¢
Liftgate Module (LGM)


?€¢
Passenger Door Module (PDM)


?€¢
Powertrain Control Module (PCM)

Does the scan tool communicate with the control modules listed above?
Go to Step 3
Go to
Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

Nov 21, 2015 | Cars & Trucks

1 Answer

Where is the fuel gauge fuse on a 1998 Buick Century?


There is not a single fuse for the fuel gauge , there are a few that power up the whole instrument cluster ! If there were a fuse out more then just your fuel gauge wouldn't work .You probably have a bad sending unit in the fuel tank or the stepper motor for that gauge is bad ! The thing to do would be to take to the dealer or some other capable ASE certified repair shop that has a up scale scan tool that can check codes in the instrument cluster ! Or you can take a chance an replace the instrument cluster !
Fuel Gage Inaccurate or Inoperative
Inspect for any stored instrument cluster Diagnostic Trouble Codes (DTCs). Are any DTCs stored in memory?
--
Go to Diagnostic Trouble Code (DTC) List/Type
Go to Step 3

3

  1. Install a Scan Tool scan tool.
  2. Turn the ignition switch to the RUN position.
  3. Establish communication with the instrument cluster.
  4. Select special functions under the main menu.
  5. Select output control under special functions.
  6. Select fuel gauge sweep test under output control main menu.
Does the fuel gauge perform a full sweep when commanded?
--
Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.1L
or
Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.8L
Go to Step 4

May 23, 2015 | 1998 Buick Century

1 Answer

97 Jetta GL 2.0 –connected a Code Reader (OBDII compatible) but unable to establish any communication-everything else works as normal- Is there a main fuse which protects the diagnostic link thanks for...


This is what I do, first is to connect my OBDII reader, pull ashtray out, on right side of ashtray, slide front panel out, connect OBDII reader, turn ignition to on, do not start, press read on OBDII, should be able to establish communication. If not then probably connection is bad somewhere from connector to the Digifant Control Unit (brain), there is no fuse in between.

Nov 28, 2010 | 1997 Volkswagen Jetta

1 Answer

What does code ccd mean on overhead display 1997 dodge ram 2500 diesel 4x4 automatic?


It means "Crystal Clear Display" but in basic term its called a ccd bus, basically the OH console module is not communicating with body control module so you want to check power and ground pins or you just might have a bad module, sorry.
A self-diagnostic test is used to determine that the
compass mini-trip computer module is operating
properly electrically.

CCD communications test.
Following completion of these tests, the compass
mini-trip computer will display one of three
messages: “PASS,” “FAIL,” or “CCd.”

if the “CCd” message is displayed, the use of a
DRBt scan tool and the proper Diagnostic Procedures
manual are required for further diagnosis.


Jun 30, 2010 | 1997 Dodge Ram 2500 Club Cab

1 Answer

Did not pass state inspection (vehicle)


First the fault codes,
U110C is No Fuel Level Bus Message
U0155 is No Cluster Bus Message.
Unfortunatly you have to be able to communicate with the instrument cluster with your scanner to diagnoise and I do not think an aftermarket scanner can do this.




Mar 02, 2010 | 2005 Chrysler PT Cruiser

1 Answer

Diagnostic code


SYMPTOM
P0601-PCM INTERNAL CONTROLLER FAILURE

TEST NOTE
This symptom is diagnosed using the test P0600-PCM FAILURE SPI COMMUNICATIONS.

WHEN MONITORED
Ignition key ON.

SET CONDITION
Internal checksum for software failed, does not match calculated value.

POSSIBLE CAUSES
  • PCM internal or SPI

Jan 16, 2009 | 2001 Dodge Stratus

2 Answers

Emissions test


Most of the Smog testers need to use the speedometer for testing since they have to test your vehicle emissions at 15mpg, 25 mph, etc. So you will likely need to get that fixed before your testing

May 30, 2008 | 1999 Volkswagen Jetta

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