G862187T8 : Check For Failure of Optical Fibre From HLDF

Pinpoint Tests

NOTE: Visually inspect for any of the following conditions and rectify any fault identified prior to carrying out any tests on the MOST Network.

^ Any sharp bends in the optical fibre harness (check for this before disturbing any module or connector).
^ Incorrect engagement of any optical connectors
^ Incorrect engagement of any electrical connectors
^ Damage to the optical fibre harness (chafing, abrasion, kinking, cuts, break, etc)
^ Incorrect assembly of the optical network
^ Unless otherwise stated, ensure vehicle ignition status is set to 'ON' when carrying out MOST Network tests.

G862187t8 : CHECK FOR FAILURE OF OPTICAL FIBRE FROM HLDF

1. Connect OBT to HLDF MOST connector C2MN08C.
2. Switch OBT 'ON' and set to 2+0 option.
3. Select the visible LED option.

^ Is the bright red light visible at MOST intermediate connector C23T pin 2?

->Yes
GO to Pinpoint Test G862187t9.G862187T9 : Check For Failure at HLDF

->No
Fault is in optical fibre harness between C23T pin 2 and C2MN08C pin 2, rectify the fault and re-test vehicle.