Volvo Link System Service Bulletin page 15

Volvo Trucks North America, Inc.
Service Bulletin
Fault Code Troubleshooting
The system has several failure conditions that can be detected by the ECU. Some of
these conditions could be loss of data link and signals, output failures and GPS failures.
The fault codes can be read by using the instrument cluster graphic display or VCADS
Pro.
NOTE: About Inactive Faults: Low Counts - If the count of an inactive fault is low or
only one, then this may indicate a possible system glitch that may not need any correc-
tive action.
High Counts - If the count of an inactive fault is high, this may indicate a problem in
concerned or related components and wiring/connectors.
Do not automatically replace any component until it has been verified to be bad.
Clear the fault and do the recommended checks as if the fault was active. Also, if pos-
sible, try to recreate the fault by placing the vehicle or component in similar conditions
that may have originally caused the fault. This will help in determining why the fault
was initially logged and also in finding a solution.
NOTE: The descriptions in the table below are the FMI descriptions according to SAE
standards. The text actually shown in the graphic display or in VCADS Pro may vary
slightly.
Fault Code: PIDs
MID 142 - PID 84
MID 142 - PID 89
MID 142 - PID 155
MID 142 - PID 155
MID 142 - PID 154
MID 142 - PID 183
MID 142 - PID 190
MID 142 - PID 235
MID 142 - PID 236
MID 142 - PID 237
Function
Road Speed
PTO Status
Output 1-4
Input 1-4
Input 5-8
Fuel Rate
Engine Speed
Idle Engine Hours
Idle Fuel Used
External VIN Missing
FMI
9=data not received/abnormal
update rate
9=data not received/abnormal
update rate
3=voltage shorted high
4=voltage shorted low
5=current low or open circuit
12=bad component
12=bad component
9=data not received/abnormal
update rate
9=data not received/abnormal
update rate
9=data not received/abnormal
update rate
9=data not received/abnormal
update rate
9=data not received/abnormal
update rate
Date Group No.
397 001
3.2002
Check
Speed sensor or data link fail-
ure. See "Engine Faults" page
18.
Indicates a problem in the en-
gine system. See "Engine
Faults" page 18.
See "MID 142 PID 154 or 155
Auxiliary Input and Output Sta-
tus" page 20.
See "MID 142 PID 154 or 155
Auxiliary Input and Output Sta-
tus" page 20.
See "MID 142 PID 154 or 155
Auxiliary Input and Output Sta-
tus" page 20.
Indicates a problem in the en-
gine system. See "Engine
Faults" page 18.
Indicates a problem in the en-
gine system. See "Engine
Faults" page 18.
Indicates a problem in the en-
gine system. See "Engine
Faults" page 18.
Indicates a problem in the en-
gine system. See "Engine
Faults" page 18.
See "MID 142 PID 237 FMI 9
External VIN Missing" page
21.
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