3308617 - D74 CRUISE CONTROL SYSTEM DOES NOT GO OFF WHEN BRAKE PEDAL PRESSED

Results of the tests
1CHECK ON BRAKE PEDAL SWITCHAll OKProblems metOperation
Check that the brake pedal switch is working properly Continue to Step 2 Brake pedal switch connection faultyRestore connections
Brake pedal switch faulty Replace the brake pedal switch Op. 5580A36
2CHECK CONNECTIONS TO ENGINE MANAGEMENT CONTROL UNITAll OKProblems metOperation
With the ignition on and brake pedal pressed, check that there is a voltage signal from the brake pedal to the engine management control unit ( See   E5060  CRUISE CONTROL ) Continue to Step 3 No voltage foundRestore connections
3CHECK ENGINE MANAGEMENT CONTROL UNITAll OKProblems metOperation
Check the operation of the engine management control unit Continue to Step 4 Engine management control unit faulty Replace engine management control unit Op.   1056B82 
4HECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'