312000224 - I014 BRAKE LIGHTS AND THIRD BRAKE LIGHT NOT WORKING

N.B.: The side brake lights are activated by the Body Computer Node whilst the third brake light is controlled directly by the brake light switch.
Test results
1CHECK USING THE EXAMINERAll OKProblems encounteredOperation
Connect the Examiner to the Body computer and check in active diagnosis that the brake lights are working properlyMove on to Step 21. The brake lights are not working2. The third brake light is not working1. Move on to Step 32. Move on to Step 4
2CONTROL SWITCH CHECKAll OKProblems encounteredOperation
Check that the brake switch is working properly    See E2021 BRAKE LIGHTS Move on to Step 3Switch brokenReplace the switch    Op. 5550D10 BRAKE LIGHT SWITCH - R+R
3ELECTRICAL SYSTEM CHECKAll OKProblems encounteredOperation
Check the continuity of the wiring from the brake switch to the Body computerCheck the continuity of the wiring between the Body Computer and the brake lights    See E2021 BRAKE LIGHTS Move on to Step 5Wiring brokenRestore correct wiring.
4ELECTRICAL SYSTEM CHECKAll OKProblems encounteredOperation
Check the continuity of the wiring between the brake switch and the third brake lightMove on to Step 5Wiring brokenRestore correct wiring.    See E2021 BRAKE LIGHTS
5CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check that all the brake lights come onEnd of diagnosisFault persistsReplace body computer    Op. 5505A32 BODY COMPUTER - R.R