| P0123 |
SYSTEM
P = POWERTRAIN
B = BODY
C = CHASSIS
U = NETWORK
CODE TYPE
0 = SAE (GENERIC)
1 = MFG (ENHANCED)
SUB SYSTEM
1 = AIR/FUEL METERING
2 = AIR/FUEL METERING (INJECTOR CIRCUIT)
3 = IGNITION SYSTEM OR MISFIRE
4 = EMISSION CONTROLS
5 = VEHICLE SPEED CONTROL OR IDLE
CONTROL6 = COMPUTER OUTPUT CIRCUIT
7 = TRANSMISSION
8 = TRANSMISSION
CONDITION
FAULT (00-99)
VARIABLE
P = POWERTRAIN
B = BODY
C = CHASSIS
U = NETWORK
CODE TYPE
0 = SAE (GENERIC)
1 = MFG (ENHANCED)
SUB SYSTEM
1 = AIR/FUEL METERING
2 = AIR/FUEL METERING (INJECTOR CIRCUIT)
3 = IGNITION SYSTEM OR MISFIRE
4 = EMISSION CONTROLS
5 = VEHICLE SPEED CONTROL OR IDLE
CONTROL6 = COMPUTER OUTPUT CIRCUIT
7 = TRANSMISSION
8 = TRANSMISSION
CONDITION
FAULT (00-99)
VARIABLE
P
0
1
23
This Tech Tips is the OBD II code breakdown
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