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What should i look for when getting engine codes u0121,u0101,u0155,u0073,u0100. plus all lights on clusters on. some times car only goes 5mph till i shut off and restart.


All these " U " codes are communication issues amongst modules. These modules communicate on bus wiring from one to another. You have a communication issue with one or more modules. You will most likely have to have the vehicle proffessionaly scanned with a vehicle scan tool to be able to identify the source of this communication issue. You may have a bad module/wiring/power/ground issue to be repaired

Nov 29, 2015 | Cars & Trucks

1 Answer

How to fix code U0155 for 06 Ford f350


Gas or diesel ?
U0155 - Lost Communication With Instrument Panel Cluster Control Module Description: Missing message concerns are logged by a module upon failure to receive a message from another module within a defined retry period. Possible Causes:
  • Open VPWR circuit to the sending module
  • Open GND circuit to the sending module
  • Open network circuits to the sending module
Diagnostic Aids: Carry out the diagnostics for the associated network module. Application Key On Engine Off Key On Engine Running Continuous Memory All Refer to the Workshop Manual Section 413-01, Instrument Cluster. Do you have a scan tool that can talk to the I/P cluster ?
  • The instrument cluster does not respond to the diagnostic tool
  • Circuit or connection in the controller area network (CAN)
  • Instrument cluster
  • Go To Pinpoint Test H .

May 12, 2015 | Ford Cars & Trucks

3 Answers

What do these codes U0100, U0155, U0101 and P2187 mean for my mazda?


U0100 - Lost Communication with ECM/PCM "A"
U0155 - Lost Communication with Instrument Panel Cluster (IPC) Control Module
U0101 - Lost Communication with TCM
All of them are Geniric Codes 4 Mazda, I would say who ever was working on the car last, posobly forgot or missted 1 or 2 connection
plugs along the way near the last repairs. So just trace yr last steps 2 see if ther any unpluged connectors, cos looks like they all are part of same chane in that line.
P2187 - Sys To Lean at the idle Bank 1
Hope that helpes you. Good luck.
Tony D:-)

Aug 03, 2014 | 2004 Mazda 6

1 Answer

Intermintlly get these codes u110a, b1a28, u0126, u0141, u0151, no power, trans feels like it slips.


on the dash cluster display, sure.
these are not good codes to get..
what is best is the use a real OBD2 scan tool , and for sure
one the reads extended chrysler codes.
first U110a
U110A is a steering column control module lost communication
if you want to read the FSM on these codes, you can
and do all the tests it states there, to find true cause.
do you, , if not get the car scanned by a mechanic and diagnosed.
B1A28-ECM Mismatch With Skim 126. lost comms with steering angle sensor
141 lost comms with TIPM
151 lost comes with occupant restraint system.

the B1a28 is very serious. or just a loose connector.
the ECM and SKIM say the VIN number is lost. or was garbled
in the comm.s (noise)

Mar 21, 2014 | 2007 Jeep Compass 2.0

1 Answer

Mazda 6 2005 u0101,u0155,u0121,u0073,u0100 codes coming up


I got the same problem. u ever figure it out? ive cleared codes and there the same. light on cluster lit up . plus some time after pulln away from stop car goes five mph. turn off start up drives fine. im about to burn this thing.

Apr 21, 2013 | 2005 Mazda 6

1 Answer

No start and code u0100


That means that the computer on the car is not working because it cannot communicate with the controller for the transmission.

Feb 07, 2013 | 2006 Saturn ION

1 Answer

U0155 code


The U0155 means "Lost Communication With Instrument Panel Cluster(IPC) Control Module".
_________________
autocom cdp pro plus

Sep 09, 2012 | Jeep Wrangler Cars & Trucks

1 Answer

Im looking for the definition to code U0100.


U0100 - Lost Communication With Engine Control Module (ECM)

Jan 30, 2011 | Chevrolet Aveo Cars & Trucks

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