2059068.5
Service Bulletin Details
Public Details for: 2059068.5
Transmission communication dtcs (numerous) - w12 engine technical background: -loose pins within the transmission link harness to the mechatronic unit for dual clutch gearbox - j743 - connections can lead to various transmission communica
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Models from 2018
2018 BENTLEY CONTINENTAL GT |
Technical product information Topic Market area Brand Transaction No. Level Status Release date Transmission communication DTC's (Numerous) - W12 engine Bentley: worldwide (2WBE) Bentley 2059068/5 EH Released for publishing 07-Nov-2022 New customer code Object of complaint Complaint type vehicle service -> vehicle diagnosis -> guided fault finding electrical power, electric system, data transfer -> data bus systems power transmission -> power distribution, power flow -> power flow electrical power, electric system, data transfer -> power supply control units, services -> with event log entry component / consumables functionality -> without function / defect functionality Vehicle data New Continental GT/C and New Flying Spur - W12 engine Sales types Type MY Brand Designation Engine code Gearbox code Final drive code 3S31BB 3S31BB 3S31BB 3S31BB 3S31BB 3S31BB 3S31EB 3S31EB 3S31EB 3S41BB 3S41BB 3S41BB 3S41BB 3S41BB 3S41EB 3S41EB 3S41EB ZG21BB ZG21BB ZG21BB ZG21BB ZG26BB 2018 2019 2020 2021 2022 2023 2021 2022 2023 2019 2020 2021 2022 2023 2021 2022 2023 2020 2021 2022 2023 2023 E E E E E E E E E E E E E E E E E E E E E E Documents Document name master.xml INTERNAL * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Position Technical product information Transmission communication DTC's (Numerous) - W12 engine Transaction No.: 2059068/5 Release date: 07-Nov-2022 Customer statement / workshop findings Customer statement Drive system fault active on DIP (Figure 1) Figure 1 Workshop findings Various and/or numerous Transmission control module (TCM) communication DTC’s logged Technical background Loose pins within the transmission link harness to the Mechatronic unit for dual clutch gearbox -J743- connections can lead to various transmission communication and hardware based DTC’s Production change Not applicable Measure Ensure the ignition is switched off for the duration of this procedure 1) Remove the left hand front wheel arch liner - Refer to Repair manual Rep.Gr 66 • Referring to Figure 2 - Disconnect the three connectors shown Extreme care MUST be taken when conducting pin/terminal grab checks and resistance checks as damage can easily be caused to the pins/terminals 2) Once disconnected carry out pin/terminal grab checks on all three male and female connections NOTE: All resistance values shown within this TPI are approximate, tolerances may vary depending on the quality/type and age of the multimeter and or leads used • In the event the main vehicle harness pins are not to specification the applicable pins should be replaced • Should any issues be found with the transmission link harness and/or pins – the harness should be replaced • In the event the pins are to specification or the applicable repairs have been done (for example – Harness replacement or pin replacement) - Reconnect all three connectors Figure 2 INTERNAL 3) Remove the rear subframe support – Rep.Gr 40 (Figure 3) Figure 3 4) Disconnect the connections (Figure 4 - Arrows) from the Mechatronic unit for dual clutch gearbox -J7435) Gain access and disconnect the transmission control module plug T58g - Refer to Repair manual Rep.Gr 37 • Referring to the applicable current flow diagram and Figure 5 and 6 - Carry out resistance and pin/terminal grab checks on all disconnected connections from the T58g connector to T20az and T20ay on the harness. Figure 4 INTERNAL Figure 5 Figure 6 When conducting the T58g resistance checks from pin 5 to the relevant fuse (Refer to the applicable Wiring diagram) please ensure the correct fuse board is located TIP: For best results the fuse should be removed and checked from the correct pin to T58g, once the check has been done refit the fuse SK = LHD SP = RHD INTERNAL Connector TV48 (Figure 7) MUST also be disconnected when conducting the pin 55 to TV48 resistance check TIP: once the check has been done reconnect TV48 Figure 7 6) Should all the resistance checks be within specification – Reconnect T20az and T20ay and referring to Figure 8 (Connector T58g) carry out the requested pin resistance checks NOTE: Referring to Figure 8 - The resistance value for checks on PIN’s 29 to 16 (Transmission fluid temperature sensor) will vary depending on the actual transmission fluid temperature Connector T58 Figure 8 Should any issues be found with the Mechatronic unit for dual clutch gearbox -J743- pin connections/transmission control module plug (T58g) pin connections or resistance values - Please raise a DISS query and await feedback before carrying out any further work INTERNAL Warranty accounting instructions Warranty type: 910 or 110 Service ID number: 9797 Damage type: 0040 Labour Time to conduct wiring checks Labour operation code: 38 85 01 05 Time: 160 Time units Time to replace link harness Labour operation code: 38 85 55 55 Time 20 Time units Parts information Part number Description Refer to ETKA Link harness INTERNAL Quantity 1