3233084 - K26 ENGINE COOLANT OVERHEATING WARNING LIGHT NOT WORKING

With the ignition turned ON, the engine coolant temperature warning light does not come on when the engine is hot.
Results of the tests
1CHECK HIGH TEMPERATURE SWITCH/SIGNALAll OKProblems metOperation
1.6 TS 1.8 TS [d] 2.5 V6

Check:

  • operation of the engine coolant temperature sensor
  • connection betwen sender unit and central instrument
( See   E4023  DASHBOARD CENTRE AUXILIARY EQUIPMENT() ). 		Continue to Step 2 Faulty switch Replace switch Op.   1088E35 
Connections brokenRestore the connections (
1.9 JTD 8v 2.4 JTD 10vConnect the diagnostic equipment (Examiner or other instruments) to the diagnostic socketCarry out active diagnosis of the maximum engine coolant temperature warning light (through the engine management control unit) Continue to Step 2 Signal not present Check the engine temperature sender unit and replace if necessary Op.   1060G14 
Connections brokenRestore connection between switch and central instrument
2CHECKING WARNING LIGHTAll OKProblems metOperation
Check the condition of the high engine coolant temperature warning light, located in the instrument Continue to Step 3 Warning light faulty Replace the warning light in the central instrument Op.   5560C51 
3CHECKING CENTRAL INSTRUMENTAll OKProblems metOperation
Checking central instrument operation: see DESCRIPTION AND OPERATION: 5560 INSTRUMENT PANEL Continue to Step 4 Device not working Replace the central instrument Op.   5560C51 
4CHECK CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'