Volvo Link System Service Bulletin page 29

Volvo Trucks North America, Inc.
Service Bulletin
Troubleshooting the Messages Shown in the Graphic Display
Operation Failed
This message is displayed during a failure to Send or
Read messages from the ECU.
NOTE: This message can be displayed without any
problems in the system, due to data link congestion.
1 Attempt to Read Messages again. If you do not get
the Operation Failed Screen again, then the prob-
lem was data link congestion. Try this 2–3 times just
to make sure that there is a problem.
2 Check fault codes. Try to read faults 2–3 times. If a
related fault is shown, see "Fault Code Trou-
bleshooting" page 15. Even if a fault is not shown, a
hardware failure may exist. Go to the next step.
3 If the problem still occurs and the instrument cluster
is working with other data link devices, there may be
a hardware failure in the wiring or connections.
Make the following checks.
Special tools: J-39200, J-43340, J-43234, 9998551
•
Key switch position: ON
•
Measuring: Voltage measurement at Truck Electrical
Center (TEC) or Volvo Link ECU
•
Adapter J-43234 to be connected to the blue JAE
connector on the Volvo Link ECU when applicable.
Use the 30–pin side of overlay J-43340.
Function Check
Power connec- Check both power point
tions at TEC connectors to the expan-
sion block positions of the
TEC.
Data link con- Check connection at data
nection at TEC link connector at rear of
TEC.
Power connec- Measure voltage at ECU:
tions at ECU pins 1-2 (Batt+),
pin 15-2 (Ign+)
Data Link con- Measure voltage at ECU:
nections at pin 14 -30 (J1587+ to
ECU J1587-)
pin 14 -2 (J1587+ to gnd)
pin 30-2 (J1587- to gnd)
Expected Possible Cause
Value
Battery Voltage Harness connector not con-
nected.
Fuse blown/missing.
0-5 VDC Harness connector not con-
nected.
Data link wiring bro-
ken/damaged.
Battery Voltage If voltage Ok at TEC, then
check continuity on wiring in
question from TEC to the
ECU.
0-5 VDC If voltage Ok at TEC, then
check continuity on wiring in
question from TEC to the
ECU.
Date Group No.
397 001
3.2002
Note
To read the fluctua-
tion in voltage on the
data link set the
range on the DMM to
zero decimal places.
This should stabilize
the measurement.
To read the fluctua-
tion in voltage on the
data link set the
range on the DMM to
zero decimal places.
This should stabilize
the measurement.
Page
29(32)
W3005016