Audi AMB Service Manual page 9

P0420 16804
Evaporative Emission System
P0440 16824
Evaporative Emission System Incorrect
P0441 16825
Purge Flow
Evaporative Emission System Leak
P0442 16826
Detected (small leak)
Evaporative Emission System Purge
P0444 16828
Control Valve Circuit Open
Evaporative Emission System Purge
P0445 16829
Control Valve Circuit Shorted
Evaporative Emission System Leak
P0455 16839
Detected (large leak)
Evaporative Emission System Leak
P0456 16840
Detected (very small leak)
Vehicle Speed Sensor "A"
P0501 16885
Range/Performance
Idle Air Control System RPM Lower
P0506 16890
Than Expected
Idle Air Control System RPM Higher
P0507 16891
Than Expected
Voltage supply signal implausible
P0560 16944
2005 Audi A4 Quattro
DTC INDEX DTC Index - 1.8L (AMB Engine)
11:32:48 PM
SENSOR (HO2S) -G39- AND
OXYGEN SENSOR
REGULATION BEFORE
CATALYTIC CONVERTER,
CHECKING .
Check Oxygen Sensor (O2S) and
oxygen sensor control behind Three
Way Catalytic Converter (TWC).
See OXYGEN SENSORS AND
OXYGEN SENSOR
REGULATION BEHIND
CATALYTIC CONVERTER,
CHECKING .
Check catalytic conversion. See
TEST-ID 01: CATALYTIC
CONVERTER .
EVAP System
Checking Evaporative Emission (EVAP)
canister purge regulator valve -N80-
EVAP canister system checking for
proper seal
Evaporative Emissions (EVAP) system
diagnostic leak test
Note
Overview of component locations
Check Evaporative Emission
(EVAP) Canister Purge Regulator
Valve -N80-. See CHECKING
EVAPORATIVE EMISSION
(EVAP) CANISTER PURGE
REGULATOR VALVE -N80- .
EVAP canister system, check for
proper seal. See EVAP
CANISTER SYSTEM,
CHECKING FOR PROPER
SEAL .
Check speed signal. See SPEED
SIGNAL, CHECKING .
Check Throttle Valve Control
Module -J338-. See THROTTLE
VALVE CONTROL MODULE -
J338-, CHECKING .
J220 - Motronic Engine Control Module
(ECM)
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