Performing Function Test Of Light Signals At Trailer Coupling Socket - AN31.19-P-8100-06MFA
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Model 118.3
Model 118.6
Model 177.0/1
Model 243.7
Model 247.0/6/7
- Connect light strip (1) or equivalent test equipment to trailer socket.
- Switch on left turn signal indicator, right turn signal indicator and hazard warning system one after the other and check for proper operation.
- Simulate failure of the left or right direction indicator lamp.
The flashing frequency of the indicator lamps in the instrument cluster must double.
- Switch on standing lights and check for proper operation.
- Switch on backup lamps and check for proper operation.
- Press brake pedal and check brake lamps for proper operation.
- Switch on rear fog lamp and check for proper operation.
- Simulate failure of rear fog lamp on trailer.
- Check constant voltage connection (terminal 30) at trailer socket.
- Disconnect light strip (1) or equivalent test equipment from trailer socket.