2398859 - K126 DISPLAY DOES NOT SHOW AVERAGE SPEED' ON TRIP MODULE

The average speed indicator in the display (one of the TRIP COMPUTER module displays) does not work with the ignition ON.
The display provides the average speed processed by the instrument panel node on the basis of the distance travelled and journey time information.
If there is no speed information (from the Brake Node) the consumption figure will be replaced by the reading '----'
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Speak to the customer to check that the TRIP functions have not just been resetContinue to Step 1The information displayed will be '----' until a stretch of road sufficient to evaluate the consumption is travelled along: if the value is not displayed after a few kilometresContinue to Step 1
1CAN CHECKSAll OKProblems metOperation

Connect the EXAMINER diagnostic equipment and check the CAN NETWORK INFORMATION:

  • For inactive control units
  • For control units with errors
  • For control units with CAN errors
Continue to Step 2Presence of faults in the CAN Continue as instructed by the tester
Impossible to converse with the Body ComputerContinue to Step 8
2CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Keep the tester connected and check the BRAKE NODE for:

  • System/component faults
  • CAN faults
Continue to Step 3System/component faultsContinue as instructed by the tester
Presence of C-CAN faults Continue to Step 11
3CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Keeping the diagnostic equipment connected, check at the INSTRUMENT PANEL NODE:

  • System/component faults
  • CAN faults
Continue to Step 11System/component faultsContinue as instructed by the tester
Presence of C-CAN faults Continue to Step 10
4CHECK WITH ACTIVE DIAGNOSISAll OKProblems metOperation
With the Examiner in the Instrument Panel Node ambient, check, in active diagnosis, that all the segments in the LCD module are correctly activatedContinue to Step 7One or more segments are not activatedReplace the instrument panel Op. 5560B11
Impossible to converse with the instrument panel Continue to Step 5
5ELECTRIC POWER SUPPLY CHECKAll OKProblems metOperation
Check that the Instrument Panel Node electrical power supply is correctContinue to Step 6Positive and/or earth electrical power supply faultyReplace the component involved (if a fuse is involved, search for the cause of the problem)
6CHECK ELECTRICAL CONNECTIONSAll OKProblems metOperation
Check the electrical connections between the Body Computer and the Instrument Panel, in particular that each individual pin is correctly connected Continue to Step 4Electrical connections not workingRestore damaged electrical connections.
7CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner check, in the Body Computer Node ambient, that there are no errorsContinue to Step 10Impossible to connect with the Body Computer control unitContinue to Step 8
There are errorsContinue in accordance with the instructions for the diagnostic equipment
8ELECTRIC POWER SUPPLY CHECKAll OKProblems metOperation
Check that the Body Computer Node electrical power supply is correct.Continue to Step 9Positive and/or earth electrical power supply fault.Replace the defective component (if a fuse is involved, search for the cause of the problem).
9CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner, check the possibility of connecting with the Body Computer Node. Continue to Step 7Impossible to connect with the Body Computer control unit.Replace the Body Computer Op.   5505A32 
10CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsReplace the Body Computer Op.   5505A32 
11CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present End of diagnosisFault persists Replace the instrument panel Op. 5560B11