AUDI A8 1999 D2 / 1.G AHA Engine On Board Diagnostic Repair Manual

P1230 17638 Cyl.6-Fuel Inj.
Circ.
Short to Ground

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01-39

Diagnostic Trouble Code
(DTC)
Malfunction
text
MIL
Corrective action
SAE
VAG



P1237 17645 Cyl.1-Fuel Inj.
Circ.
Open Circuit Immed.
- Check fuel injectors page 24
-102
and Output Diagnostic
Test Mode (DTM) page 01
-51

P1238 17646 Cyl.2-Fuel Inj.
Circ.
Open Circuit
P1239 17647 Cyl.3-Fuel Inj.
Circ.
Open Circuit
P1240 17648 Cyl.4-Fuel Inj.
Circ.
Open Circuit
P1241 17649 Cyl.5-Fuel Inj.
Circ.
Open Circuit
P1242 17650 Cyl.6-Fuel Inj.
Circ.
Open Circuit
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01-40

Diagnostic Trouble
Code (DTC)
Malfunction
text
MIL
Corrective action
SAE
VAG



P1250 17658 Fuel Level
Too Low Off
Repair Manual, Electrical Equipment, Repair Group 01 (instrument cluster diagnostics, Read Measuring Value Block)
- Fuel volume less than 2 gallons; add fuel
- Check "fuel level low" signal page 24
-176
- Check fuel level sensor signal and fuel gauge
Note on misfire malfunctions:
For malfunctions that may be caused by low fuel volume (i.e. combustion misfire) a low-fuel malfunction (DTC "P1250") is also
stored when there is less than 2 gallons of fuel remaining in the tank.
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01-41

Diagnostic Trouble Code
(DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1325 17733 Cyl.1-Knock Contr.
Limit Attained Off
- Check knock sensors and knock sensor control
page 28
-8
P1326 17734 Cyl.2-Knock Contr.
Limit Attained
P1327 17735 Cyl.3-Knock Contr.
Limit Attained
P1328 17736 Cyl.4-Knock Contr.
Limit Attained
P1329 17737 Cyl.5-Knock Contr.
Limit Attained
P1330 17738 Cyl.6-Knock Contr.
Limit Attained
P1337 17745 Camshaft Pos. Sensor,
Bank1
Short to Ground 2
Dcy - Check Camshaft Position (CMP) sensor 2 -G163-
page 28
-5
P1338 17746 Camshaft Pos. Sensor,
Bank1
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Open Circ./Short to B+
P1386 17794 Internal Control Module
Knock Control Circ. Error 2
Dcy - Replace ECM page 01
-68
Pa
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01-42

Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1391 17799 Camshaft Pos.
Sensor, Bank2
Short to Ground 2 Dcy
- Check Camshaft Position (CMP) sensor -G40- page 28
-2
P1392 17800 Camshaft Pos.
Sensor, Bank2
Open Circ./Short to
B+
P1410 17818 Tank Ventilation Valve
Circ.
Short to B+ 2 Dcy
- Check Evaporative Emissions (EVAP) canister purge
regulator valve output Diagnostic Test Mode (DTM), page
01
-51

P1421 17829 Sec. Air Inj. Valve
Circ.
Short to Ground Immed.
- Check Secondary Air Injection (AIR) system output
Diagnostic Test Mode (DTM), page 01
-51

P1422 17830 Sec. Air Inj. Sys.
Contr. Valve Circ.
Short to B+
P1425 17833 Tank Vent Valve
Short to Ground 2 Dcy
- Check Evaporative Emissions (EVAP) canister purge
regulator valve output Diagnostic Test Mode (DTM), page
01
-51

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P1426 17834 Tank Vent Valve
Open
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01-43

Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1432 17840 Sec. Air Inj. Valve
Open 2
Dcy - Check Secondary Air Injection (AIR) system output
Diagnostic Test Mode (DTM), page 01
-51

P1433 17841 Sec. Air Inj. Sys. Pump
Relay Circ.
Open

P1434 17842 Sec. Air Inj. Sys. Pump
Relay Circ.
Short to B+

P1435 17843 Sec. Air Inj. Sys. Pump
Relay Circ.
Short to Ground

P1436 17844 Sec. Air Inj. Sys. Pump
Relay Circ.
Electrical Malfunction

P1471 17879 EVAP Emission Contr. LDP
Circ.
Short to B+ Off
- Check Leak Detection Pump (LDP) page 24
-124
P1472 17880 EVAP Emission Contr. LDP
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Circ.
Short to Ground
P1473 17881 EVAP Emission Contr. LDP
Circ.
Open Circ.
P1476 17884 EVAP Emission Contr. LDP
Circ.
Malfunction/Insufficient
Vacuum Off
- Check Evaporative Emission (EVAP) system Repair
Manual, Fuel Supply System, Repair Group 20
P1477 17885 EVAP Emission Contr. LDP
Circ.
Malfunction
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01-44

Diagnostic Trouble Code
(DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1500 17908 Fuel Pump Relay Circ.
Electrical Malfunction Immed.
- Check fuel pump relay and relay actuation page 24
-95

P1501 17909 Fuel Pump Relay Circ.
Short to Ground
P1502 17910 Fuel Pump Relay Circ.
Short to B+
P1505 17913 Closed Throttle Pos. Switch
Does Not Close/Open Circ. 2 Dcy
- Check throttle body and throttle valve control
module page 24
-128

P1512 17920 Intake Manifold Changeover
Valve Circ.
Short to B+ Immed.
- Check Intake Manifold Tuning (IMT) valve (change-
over valve) page 24
-154

P1515 17923 Intake Manifold Changeover
Valve Circ.
Short to Ground

P1516 17924 Intake Manifold Changeover
Valve Circ.
Open
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