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Getting Started
2
Diagnostic Trouble Codes (DTCs)
✓ Diagnostic Trouble Codes are used to help determine the cause of
a problem or problems with a vehicle.
❒ Diagnostic Trouble Codes (DTCs) consist of a five-digit
alphanumeric code.
The Diagnostic Trouble Codes format and general code types are shown below.
Within each general category, the DTCs are assigned to specific ranges that
cover certain vehicle systems.
Example:
P0101 - Mass or Volume Air Flow Circuit Range/Performance Problem
P 0 1 0 1
Vehicle Specific System
Powertrain Codes
P0xxx - Generic (SAE)
P1xxx - Manufacturer Specific
P2xxx - Generic (SAE)
P30xx-P33xx - Manufacturer Specific
P34xx-P39xx - Generic (SAE)
Chassis Codes
C0xxx - Generic (SAE)
C1xxx - Manufacturer Specific
C2xxx - Manufacturer Specific
C3xxx - Generic (SAE)
Body Codes
B0xxx - Generic (SAE)
B1xxx - Manufacturer Specific
B2xxx - Manufacturer Specific
B3xxx - Generic (SAE)
Network Communication Codes
U0xxx - Generic (SAE)
U1xxx - Manufacturer Specific
U2xxx - Manufacturer Specific
U3xxx - Generic (SAE)
Specific Fault Designation
Bx - Body
Cx - Chassis
Px - Powertrain
Ux - Network Comm.
x = 0, 1, 2 or 3