Porsche OBD/OBD2 Codes

Porsche Code Retrieval

Accessing Diagnostic Trouble Codes

88-90

Requires the use of DTC tester tool No. 9268 or system tester tool No. 9288, or equivalents to read trouble codes.

91-95

Diagnostic trouble codes may be read using DTC tester tool No. 9268 or system tester tool No. 9288, or equivalents, or through flashing of the “Check Engine” lamp. To display the stored diagnostic trouble codes through the “Check Engine” lamp, proceed as follows:
  • With engine off, turn ignition switch to On position.
  • Depress accelerator pedal completely for 3-5 seconds.
  • Wait for “Check Engine” lamp to flash, then release accelerator pedal. ECU will begin to flash diagnostic trouble codes.
  • Fully depress accelerator pedal to display next diagnostic trouble code. When trouble DTC 1000 is displayed, no additional DTC’s are stored are memory.

96-up

Requires System Tester 9288 or generic scan tool to retrieve trouble codes. Please see Porsche OBD2 code list here.

Clearing Diagnostic Trouble Codes

After malfunctions have been repaired, clear diagnostic trouble codes as follows:
  • With engine off, turn ignition switch to ON position.
  • Fully depress accelerator pedal for more than 11 seconds.

Diagnostic Trouble Code Identification

DTCCircuit Or Condition
1000End Of Output
1111Power Supply Wrong Voltage
1112Ground In Idle Speed Control Circuit
1113Ground In Full Load Contact Circuit
1114Open Engine Temperature 11 Circuit
1115Idle Control Interrupted
1121Air Sensor Flow Circuit
1123Oxygen Sensor
1124Oxygen Sensor
1125Air Temperature Sensor
1131Knock Sensor 1
1132Knock Sensor
1133Knock Regulation Circuit
1134Hall Sender Signal
1141ECU
1151Fuel Injector No. 1
1152Fuel Injector No. 2
1153Fuel Injector No. 3
1154Fuel Injector No. 4
1155Fuel Injector No. 5
1156Fuel Injector No. 6
1311Fuel Injector No. 1
1312Fuel Injector No. 2
1313Fuel Injector No. 3
1314Fuel Injector No. 4
1315Fuel Injector No. 5
1316Fuel Injector No. 6
1321Idle Speed Control Circuit
1322Tank Venting Solenoid
1323Resonance Flaps
1332Idle Speed Contact
1333Full Load Contact
1334A/C Activation
1335A/C Activation
1500No Faults Stored
DTC
Circuit or description
11
Supply voltage
14
Engine temp sensor 2
16
Throttle potentiometer
17
0il temperature sensor
18
Rpm signal
19
Speed signal -Speedometer
21
Air flow sensor
23
Oxygen regulation
24
Oxygen sensor
26
Ignition timing change
27
Opening winding of idle stabilizer
28
Closing winding of idle stabilizer
29
Activation of AC relay
31
Knock sensor 1
32
Knock sensor 2
33
Control unit faulty
34
Hall signal
35
VarioCam
36
Idle CO potentiometer
41
Control unit faulty
42
Fuel pump relay (DME-relay)
43
Tank ventilation
45
Check Engine warning lamp
51
Injection valve cylinder 1
52
Injection valve cylinder 2
23
Injection valve cylinder 3
54
Injection valve cylinder 4
LH Diagnostic codes

11

Supply voltage

12/15

Idle speed contact

13

Full load contact

14

Engine temperature sensor II

21

Air mass sensor

22

Idle speed control activation

23

Oxygen regulation stop, rich

24

Oxygen regulation stop, lean

25

Oxygen sensor, open circuit

31

Injection circuit shut down

41

Control unit faulty

EZK Diagnostic codes

12

Idle speed contact

13

Full load contact

14

Engine temperature sensor II

15

Idle or full load contact

21

Load signal LH

26

Transmission protection switch

31

Knock sensor 1

32

Knock sensor 2

33

Control unit faulty (knock sensor)

34

Hall signal

41

Control unit faulty

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Bill Schnell
1 year ago

I have a Porsche 996 2004 turbo charged all wheel drive, engine starts then Quits
I have a code 9101 CAN drive bus?

Need help please!