167788 - K19 FUEL CONSUMPTION GAUGE NOT WORKING

the instantaneous fuel consumption signal is supplied by the "engine control node" via the C-CAN network; the "computer body node" sends it on the B-CAN network via the gateway and then on to the "instrument panel node".
STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
0PRELIMINARY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that the instantaneous fuel consumption value appears on CONNECTMove on to Step No value appears on CONNECTMove on to Step
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Connect the Examiner diagnostic equipment to the diagnostic connector check the following at the instrument panel node:In active diagnosis environment

  • indicator operation
Move on to Step The pointer does not moveReplace instrument panel     See in Op. 5560B11 ANALOGUE CONTROL PANEL - R.R. or Replace
2CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Connect the Examiner diagnostic equipment to the diagnostic connector and check the following at the CAN:

  • no control unit not activated;
  • that there are no faulty control units;
  • no control unit with faulty CAN line;
Move on to Step Presence of faults Continue following the instructions for the diagnostic equpiment
3CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
2.0 TB,2.4 20 V,3.0 V6Check that the fault is no longer presentFault persistsReplace engine control unit     See in Op. 1056B82 Injection/ignition system CONTROL UNIT (one) - R.R.
3CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
2.4 JTD 10VCheck that the fault is no longer presentFault persistsReplace engine control unit     See in Op. 1060G80 Diesel electronic injection system CONTROL UNIT - R.R.