No response from controller r1200cl 2004

[mayojuaf]

The executive summary is
Brake light is always on (both filaments)
Speedometer does not work
so IABS (servo unit in 2004) light flashes fast and warning light is on
Test cycle does not complete so no servo brakes

Troubleshoot steps
Tested both break switches and work fine. Front shows 3.85 V and goes to 0 when pressed. Rear same voltage and goes to 0. When bike is with no ignition key, both switches show 1.4 V. (is this ok)

Blue ABS relay under tank is ok, tested and clicked and tested two other connectors of relay and they have Voltage
bleed system front, rear and ABS box.
I tested the speed sensors by stripping insulation on cables before they get to the wheel and measure volts. I understand that will only tell me volts being sent to the sensor, but not if the electromagnetic coil is working correctly. Nevertheless...
In the back sensor I got 0V when off and 9.95V when switch on. On the front was weird. With switch off I got 2.3v....and with switch on got the 9 something volts. Seems is not ok. Problem is front sensor plug is under cockpit (so very difficult to reach and replace)

Used gs911 and here are the result

how can i fix the no response from controller?

[schuppi]

Hello
Wellcome to GS911 forum.

Nice pictures but it will be better to send a complete Auto Scan to see all faults in each module. Thank you for cooperation .

Here is my first aid:
cable measurement on ABS connector

permanent positive > connector position 2 (red) > battery voltage
ground  >  1 (brown) > to battery minus
ignition >   3 (green) from ignition switch > cycled on > Battery voltage
Diagnostic > 31 (brown/black) > to diagnostic connector pin 1 >removed connectors only continuity test  > 0 Ohm

If this measurement is right and no communication with ABS module it will be broken.

Hope this will show you the right way

[mayojuaf]

Schuppi, thanks for the prompt response!
Here are the results of scan

ECU Info Report
GS-911 version: 1609.1 Datapack version: 6.1
Serial Number: GS1 005 178
Firmware version: 0.251-0.144 Datapack version: 0.127
Registered to: juan mayorga
Date: 10/30/2016 Time: 11:38:09 AM
________________________________________
Motronic MA2.4
Motorcycle Variant:   R1200C ECE+US,LL=900   
Part No.:   7671709   
Bosch Part Number:   0261207870   
ECU Software Number:   1037368115   
ECU coding variant:   1   
ECU program version:   25000100   
Manufacturer:   Bosch   
HWOE No.:   61380786   
Idle Actuator:   Yes   
Emissions control type:   Lambda   

Fault Codes Report

GS-911 version: 1609.1 Datapack version:6.1 Serial Number: GS1 005 178 Registered to: juan mayorga
Date: 10/30/2016 Time: 11:38:57 AM

821: Hall sensor 1, no signal – this fault will always occur if engine not running or engine not cranked before reading Fault codes.
   This fault occurred 0 times.
   The fault is currently present.
901: Hall sensor 2, no signal – this fault will always occur if engine not running or engine not cranked before reading Fault codes.
   This fault occurred 0 times.
   The fault is currently present.
5382: Idle Switch, open circuit since ignition ON.
   This fault occurred 0 times.
   The fault is currently present.


When I try to run de ABS tests I get the No response from the controller

Let me see if I understand your first instructions
I need to go to the part in the picture below, yes?

with meter check position 1 and 2 to get 12 v
and then swich tester to ohms and 31 to 1 should give 0 ohms in tester
what about ignition 3? I lost you there...
am I getting there?

Thanks again

[mayojuaf]

my test gave
1 and 2 gave 12 v
1 and 31 have infinite ohms

see pictures, did I do the correct thing?

[schuppi]

Diagnostic > 31 (brown/black) > to diagnostic connector pin 1 >removed connectors only continuity test  > 0 Ohm
from connector ABS module pin 31 to the round connector for diagnostic pin 1. (0 Ohms)

On connector ABS module pin 3 to ground >ignition on > 12V ?

[mayojuaf]

Schuppi, I am sorry i feel so dumb when trying to follow your instructions...


When you say:
permanent positive > connector position 2 (red) > battery voltage
ground  >  1 (brown) > to battery minus
You mean I should measure voltage to se if it is coming to the ABS module?

when you say:
ignition >   3 (green) from ignition switch > cycled on > Battery voltage
I am not sure what should I measure..

when you ask:
Diagnostic > 31 (brown/black) > to diagnostic connector pin 1 >removed connectors only continuity test  > 0 Ohm
You mean I should connect 31 and 1? and measure voltage or ohms?

sorry I am so useless here...

[mayojuaf]

ohhhh I read your instructions 5 more times and I think I got it...

I should work with the bikes round connector (where I plug the gs911)  and with the ABS module that has like 42 pins (the blue connector in my pictures.

cable measurement on ABS connector will measure ABSmodule and and round connector

permanent positive > connector position 2 (red) > battery voltage (should connect the round connector pin 2 to the positive of the battery

ground  >  1 (brown) > to battery minus (should connect the round connector pin 2 to the - of the battery

ignition >   3 (green) from ignition switch > cycled on > Battery voltage I will put ignition on ...? here I can figure out what I should do...

Diagnostic > 31 (brown/black) > to diagnostic connector pin 1 >removed connectors only continuity test  > 0 Ohm
  get my meter and measure ohms between : the ABS blue big conector hole 31 an round connector pin 1

[schuppi]

Oh no.
 
ground  >  1 (brown) > to battery minus. That is the brown cable from pin 1 ABS to battery negative. Here you can
measure the right ground connection while connectors are unplugged. > testing range > Ohm

Don't do it. Please read, think and than do the measurement.
Or get a wiring diagram to find the cables.



permanent positive > connector position 2 (red) > battery voltage
ground  >  1 (brown) > to battery minus
You mean I should measure voltage to se if it is coming to the ABS module? YES

ignition >   3 (green) from ignition switch > cycled on > Battery voltage
I am not sure what should I measure..  >> min. 12V

Diagnostic > 31 (brown/black) > to diagnostic connector pin 1 >removed connectors only continuity test  > 0 Ohm
You mean I should connect 31 and 1? and measure voltage or ohms?  No, see above

[mayojuaf]

Schuppi,  thanks for your patience. Here are my measures

12 v   permanent positive > connector position 2 (red) > battery voltage
ground  >  1 (brown) > to battery minus   

12 v  on ignition >   3 (green) from ignition switch > cycled on > Battery voltage

1.4 ohms   Diagnostic > 31 (brown/black) > to diagnostic connector pin 1 >removed connectors only continuity test

Pin 1 on diagnostic connector is a brown with a black line. Here is where I measure to pin 31 of ABS connector

Pin 4 is all brown
Is this ok?

See picture.

[mayojuaf]

i just tested 39 and 40 for front brake, and for rear brake 7 and 41 . Both are ok some ohms when not press and infinite when pressed

[schuppi]

Hello

1.4 ohms   Diagnostic > 31 (brown/black) > to diagnostic connector pin 1 >removed connectors only continuity test
If your meter is right, I would  look for this to get it down > corrosion?
Pin 1 on diagnostic connector is a brown with a black line. Here is where I measure to pin 31 of ABS connector.
Otherwise your ABS module is down

Pin 4 is all brown > Bike ground > connected with battery minus

[mayojuaf]

Schuppi,

Can I test speed sensors at iabs module connector? from the wiring schematics, pins 33 and 35 are for front and 34 and 36 for rear.
What should I read in ohms for those pins 33-35 and then 34-36?

[schuppi]

Hello

Sorry not measurable with your multimeter.
These are Magneto-resistive sensors which cannot generate a signal voltage on their own.
They must have an external power source, provided by the ABS-module.
If your ABS is still not readable, there also will be no output for the sensors.
Checking the sensors an oscilloscope is required.

Only cable resistance measurable.

[mayojuaf]

that is why my "invention is not working to test the new sensor....what if i connect my extra battery also?
the meter will read 12 v but when I spin the wheel it will read more than 12?

[schuppi]

Hi

I do not know, if that would work outside the complete wiring. Never tested it.
But the output of these sensor is in the range of 0,6V to 1,6V when transmitter wheel runs past the sensor.

Checking the sensors an oscilloscope is required.