G862187T2 : Check RD1 Ring Break Link

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.

G862187t2 : CHECK RD1 RING BREAK LINK

1. Check the RD1 Ring Break link in Auxiliary Junction Box (AJB) is not disconnected or open circuit.

^ Is the RD1 Ring Break link in Auxiliary Junction Box (AJB) disconnected or open circuit?

->Yes
Rectify the fault condition and re-test vehicle.

->No
GO to Pinpoint Test G862187t3.G862187T3 : Initiate Ring Break Diagnostic (RBD) & Read DTCS