939003646 - K045 HEATER PLUGS WARNING LIGHT NOT WORKING

With the key ON, the glow plug warning light does not come on or stays on and does not go off
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
Check initially that the engine fault warning light is not onMove on to Step 1Engine warning light onContinue as instructed in the    See table K101 MIL WARNING LIGHT STAYS ON (ENGINE STARTS)
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Connect the Examiner equipment to the diagnostic socket.Check warning light operation in active diagnosis modeMove on to Step 21. Warning light does not come on1. Replace the instrument panel    Op. 5560B10 CONTROL PANEL - R+R
2. Warning light comes on2. Move on to Step 3
2CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Check for errors in the NCMMove on to Step 3Errors indicatedContinue following the instructions indicated by the diagnostic equipment
3CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Check for errors in the NBCMove on to Step 4Errors indicatedContinue following the instructions indicated by the diagnostic equipment
4ELECTRICAL SYSTEM CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the correct connections between the plug control unit, engine control unit, body computer and instrument panel    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT Move on to StepConnections faultyRestore the correct connections.
5CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosis