3233051 - I01 SIDE LIGHTS/NO. PLATE LIGHTS NOT WORKING

With the ignition key in the ON position, when the steering column switch unit ring nut is operated, the side lights or the number plate lights do not work and this fault is indicated by the light failure warning light.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Check the oepration of the light check device. If the side lights or number plate lights do not work, the light failure warning light comes on. Continue to Step 1 The fault is not indicated by the light failure warning light. See table   I30 
1CHECK INDIVIDUAL LIGHTSAll OKProblems metOperation
Check the condition of the individual bulbs and the bulb holder assembly Continue to Step 2 Bulbs damagedReplace bulbs
Rear lights cluster faulty Repair or replace the rear lights cluster Op.   5540A80 
Front lights cluster faulty Repair or replace front lights cluster Op.   5540B26 
No. plate lights faulty Renew or replace the no. plate lights Op.   5540A94 
2SIDE LIGHTS ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation

  • connections between the ignition switch and the stalk unit
  • the connection between the stalk unt and the rev counter
  • connections between the rev counter and bulbs
  • bulbs earth
( See   E2010  SIDE LIGHTS / NO. PLATE LIGHTS ).
Continue to Step 3 Connections brokenRestore the connections (
3STEERING COLUMN SWITCH UNIT CHECKAll OKProblems metOperation
Check the stalk unit is working properly: in particular, check the side light switch see DESCRIPTION AND OPERATION: 5550A stalk unit Continue to Step 4 Stalk unit not working properly Replace the steering column switch unit Op.   5550A12 
4CHECK IGNITION SWITCHAll OKProblems metOperation
Check that the side lights come on when the ignition key is turned in the opposite direction Continue to Step 5 Ignition switch faulty Renew or replace the ignition switch Op. 5520A10
5CHECK CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'