eachtraíochta na hÉireann
Registered user
Hows all,
I'm having some difficulty with my F800GS 2008 bike and as i'm exploring my working theories and eliminating potential causes, my options are becoming limited.
I'm looking to some of the experts in the club who may have had some similar issues or experience with the problems that could possibly narrow down the root cause.
Here's a brief summary so far,
Problem Statement
Engine cut out while travelling 120kph on the motorway, EWS error was displayed on the dash and the bike was unable to start again. A number of days later, the bike did start, the fault appears intermittently on start up.
Determine Root Cause
The GS911 diagnostic tool was used to carry out an evaluation of the bike, the following codes have been displayed. Once error codes were deleted, these did not appear during live running of the bike. When the bike is shut off and restarted, once EWS (sporadic on start up) has been displayed on the bike, these errors appear again.
ZFE Basic – Vehicle Electronics
2 fault codes found:
41787 Left heated grip malfunction, open-circuit
The fault is currently present.
41754 CAN-bus timeout to BMS-K (engine) control module
The fault is not present now.
CAN-Kombi-K7 – Instrument Cluster
2 fault codes found:
37651 CAN-bus timeout with BMS-K control unit
The fault is not present now.
37652 CAN-bus timeout with BMS-K control unit
The fault is not present now.
ABS8M1 – ABS Brakes
59701 CAN bus: No communication with the Engine (BMS-K) control unit
The fault is not present now.
Working Theories
1. Battery
Electrical fluctuations was a probable cause from a faulty battery cell or connections. I did notice a drop in voltage to 1.2v when EWS was live, this may be down to protection of the system?. This was ruled out after a battery test on the cells and connection check on the battery terminals
2. Ring Antenna
The ring antenna was replaced but the EWS remained, tried both keys
3. Connections
The EWS intermittent fault was turning on an off by maneuvering position of ECU out of its fixed location, not repeatable or confirmed during a short period of time of testing
More tests for bad connections, broken wires etc needed
4. Left heated grip malfunction
This has not been working for months previously with no observed faults with the vehicle
5. ABS
The ABS sensor flashing remained on while driving about 6 months ago, this was the only observable problem with it, the ABS disc is also rusty but unknown if this causes any issues other than cosmetic.
ABS fault shows there is an error somewhere.
I'm having some difficulty with my F800GS 2008 bike and as i'm exploring my working theories and eliminating potential causes, my options are becoming limited.
I'm looking to some of the experts in the club who may have had some similar issues or experience with the problems that could possibly narrow down the root cause.
Here's a brief summary so far,
Problem Statement
Engine cut out while travelling 120kph on the motorway, EWS error was displayed on the dash and the bike was unable to start again. A number of days later, the bike did start, the fault appears intermittently on start up.
Determine Root Cause
The GS911 diagnostic tool was used to carry out an evaluation of the bike, the following codes have been displayed. Once error codes were deleted, these did not appear during live running of the bike. When the bike is shut off and restarted, once EWS (sporadic on start up) has been displayed on the bike, these errors appear again.
ZFE Basic – Vehicle Electronics
2 fault codes found:
41787 Left heated grip malfunction, open-circuit
The fault is currently present.
41754 CAN-bus timeout to BMS-K (engine) control module
The fault is not present now.
CAN-Kombi-K7 – Instrument Cluster
2 fault codes found:
37651 CAN-bus timeout with BMS-K control unit
The fault is not present now.
37652 CAN-bus timeout with BMS-K control unit
The fault is not present now.
ABS8M1 – ABS Brakes
59701 CAN bus: No communication with the Engine (BMS-K) control unit
The fault is not present now.
Working Theories
1. Battery
Electrical fluctuations was a probable cause from a faulty battery cell or connections. I did notice a drop in voltage to 1.2v when EWS was live, this may be down to protection of the system?. This was ruled out after a battery test on the cells and connection check on the battery terminals
2. Ring Antenna
The ring antenna was replaced but the EWS remained, tried both keys
3. Connections
The EWS intermittent fault was turning on an off by maneuvering position of ECU out of its fixed location, not repeatable or confirmed during a short period of time of testing
More tests for bad connections, broken wires etc needed
4. Left heated grip malfunction
This has not been working for months previously with no observed faults with the vehicle
5. ABS
The ABS sensor flashing remained on while driving about 6 months ago, this was the only observable problem with it, the ABS disc is also rusty but unknown if this causes any issues other than cosmetic.
ABS fault shows there is an error somewhere.