G862187T24 : Check For Failure of Optical Fibre to Intermediate Connector C23S Pin 1

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.

G862187t24 : CHECK FOR FAILURE OF OPTICAL FIBRE TO INTERMEDIATE CONNECTOR C23S PIN 1

1. Disconnect intermediate connector C23S.
2. Switch OBT 'ON' and set to 2+0 option.
3. Press red 'TEST' button on OBT and observe harness side of connector C23S pin 1.

^ Is the bright red light visible at harness side of connector C23S pin 1?

->Yes
No fault is indicated with the MOST Network, check all connectors and re-test vehicle.

->No
Fault is in optical fibre harness between C4ME43B pin 2, if digital audio broadcast/satellite radio module is installed (or C4MM22B pin 2, if digital audio broadcast/satellite radio module not installed or C4ME27C pin 2, if bluetooth module not installed), and C23S pin 1, rectify the fault and re-test vehicle.