Group 28
Design and Function
Diagnostic Message Description
The Society of Automotive Engineers (SAE) and the American Trucking Association
(ATA) have developed a standardized list of diagnostic messages, or fault codes. These
diagnostic messages are used to communicate information about problems detected
by an electronic control unit’s (ECU’s) self-diagnostic program. In addition to the
industry-standard SAE codes, Volvo has developed a list of diagnostic messages that
are unique to Volvo applications. Generally, diagnostic messages and their descriptions
are listed in the service manual for each respective ECU and in the user manual for di-
agnostic tools.
MID
MID is an acronym for Message Identification Description. MIDs are SAE stan-
dardized codes used to identify individual electronic control units.
PID
PID is an acronym for Parameter Identification Description. PIDs are SAE stan-
dardized codes used to identify parameters or values.
PPID PPID is an acronym for Proprietary Parameter Identification Description. PPIDs
are Volvo’s unique codes used to identify parameters or values.
SID
SID is an acronym for Subsystem Identification Description. SIDs are SAE stan-
dardized codes used to identify components.
PSID PSID is an acronym for Proprietary Subsystem Identification Description. PSIDs
are Volvo’s unique codes used to identify components.
FMI
FMI is an acronym for Failure Mode Identifier. FMIs are SAE standardized codes
used to identify a type of failure.
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Summary of Contents for TSI
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Page 30: ...Group 28 Specifications Schematic D12B W2002827 28...
Page 31: ...Group 28 Specifications Schematic D12C W2003348 29...
Page 32: ...Group 28 Specifications Schematic D7C W2002826 30...
Page 33: ...Group 28 Specifications Schematic VECU W3003497 31...
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Page 96: ...Group 28 Troubleshooting 94...
Page 110: ...Group 28 Troubleshooting Fuel Pressure Sensor Pres sure Voltage Chart W2002799 108...
Page 114: ...Group 28 Troubleshooting Oil Pressure Sensor Pres sure Voltage Chart W2002732 112...
Page 118: ...Group 28 Troubleshooting Boost Pressure Sensor Pres sure Voltage Chart W2002730 116...
Page 129: ...Group 28 Troubleshooting Coolant Temperature Sensor Tem perature Resistance Chart W2002729 127...
Page 140: ...Group 28 Troubleshooting Fuel Temperature Sensor Tempera ture Resistance Chart W2002742 138...
Page 144: ...Group 28 Troubleshooting Oil Temperature Sensor Tempera ture Resistance Chart W2002727 142...
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Page 249: ...Operation Numbers 2841 03 02 01 Engine ECU Replacement 243...