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Author Topic: fault code clarification. 2 digit and 4 digit  (Read 1024 times)

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feeutfo

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fault code clarification. 2 digit and 4 digit
« on: 30 October 2008, 19:21:43 »

is it the case that the omega has 2 lists of codes across the range. 2 digit, and 4 digit?

No matter what engine, you have one or the other?

I know the 4 digit to be obd 2, courtesy of Entwoods list thats all fine.

But does that make 2 digit codes obd1 and is there
A similar comprehensive list for those?

Cheers

Edited. Obviously 2 digit can only have 99 codes so that will be as comprehensive as it gets?
« Last Edit: 30 October 2008, 19:24:29 by chrisgixer »
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TheBoy

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Re: fault code clarification. 2 digit and 4 digit
« Reply #1 on: 30 October 2008, 19:24:24 »

there is no such std as obd1, well the std exists, but no rules, and too many variations.

the 2 digit codes are broadly similar between 4pot and v6. TIS does not list 4pot 2 digit codes - it can be a bit gay like that
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Bandit127

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Re: fault code clarification. 2 digit and 4 digit
« Reply #2 on: 30 October 2008, 20:22:56 »

Quote
there is no such std as obd1, well the std exists, but no rules, and too many variations.

the 2 digit codes are broadly similar between 4pot and v6. TIS does not list 4pot 2 digit codes - it can be a bit gay like that
Is there a list of 4 pot, 2 digit codes anywhere else? Or a Motec/Simtec standard that I can look up.

As it stands, your otherwise quality How-To on the paperclip/pedal test and fault codes is lacking...  
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TheBoy

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Re: fault code clarification. 2 digit and 4 digit
« Reply #3 on: 30 October 2008, 20:24:39 »

Quote
Quote
there is no such std as obd1, well the std exists, but no rules, and too many variations.

the 2 digit codes are broadly similar between 4pot and v6. TIS does not list 4pot 2 digit codes - it can be a bit gay like that
Is there a list of 4 pot, 2 digit codes anywhere else? Or a Motec/Simtec standard that I can look up.

As it stands, your otherwise quality How-To on the paperclip/pedal test and fault codes is lacking...  
If I had found a good enough one, we would have it (or link to it if on another site) ;)
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Bandit127

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Re: fault code clarification. 2 digit and 4 digit
« Reply #4 on: 30 October 2008, 20:33:37 »

Quote
Quote
Quote
there is no such std as obd1, well the std exists, but no rules, and too many variations.

the 2 digit codes are broadly similar between 4pot and v6. TIS does not list 4pot 2 digit codes - it can be a bit gay like that
Is there a list of 4 pot, 2 digit codes anywhere else? Or a Motec/Simtec standard that I can look up.

As it stands, your otherwise quality How-To on the paperclip/pedal test and fault codes is lacking...  
If I had found a good enough one, we would have it (or link to it if on another site) ;)
Yeah, point taken. I thought of that about 5 seconds after I posted...  :(

However, can you offer some guidance to 4 pot members that the 2.5/3.0 codes are mostly right on this page maybe?
http://www.omegaowners.com/forum/YaBB.pl?num=1189022687
As it stands, members with this system have a black hole.

TIA
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ngrainqey

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Re: fault code clarification. 2 digit and 4 digit
« Reply #5 on: 30 October 2008, 20:34:41 »

you can find the majority of the 2 digit codes searching for them on google such as "simtec 56 fault codes"
should bring up alot of vxon/vauxhall pages
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feeutfo

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Re: fault code clarification. 2 digit and 4 digit
« Reply #6 on: 30 October 2008, 20:44:22 »

ok. So 2 digit can only deal with 99 codes. So car makers, before the advent of obd2, would assign what ever to those 99 codes? Making them car maker specific. And probably model specific? Thus makeing it a bit of a gamble reading other model codes, even from the same car maker????

Fairly clear, the need for obd2.
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TheBoy

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Re: fault code clarification. 2 digit and 4 digit
« Reply #7 on: 30 October 2008, 21:08:41 »

Quote
ok. So 2 digit can only deal with 99 codes. So car makers, before the advent of obd2, would assign what ever to those 99 codes? Making them car maker specific. And probably model specific? Thus makeing it a bit of a gamble reading other model codes, even from the same car maker????

Fairly clear, the need for obd2.
No, as 2 digit code systems also use 3 digits  8-)
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feeutfo

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Re: fault code clarification. 2 digit and 4 digit
« Reply #8 on: 31 October 2008, 00:42:54 »

Quote
ok. So 3 digit can only deal with 999 codes. So car makers, before the advent of obd2, would assign what ever to those 999 codes? Making them car maker specific. And probably model specific? Thus makeing it a bit of a gamble reading other model codes, even from the same car maker????

Fairly clear, the need for obd2.  ::)
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Abiton

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Re: fault code clarification. 2 digit and 4 digit
« Reply #9 on: 31 October 2008, 07:47:28 »

Is there something wrong with the list already here:
http://www.omegaowners.com/forum/YaBB.pl?num=1207565474

?  :-?

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feeutfo

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Re: fault code clarification. 2 digit and 4 digit
« Reply #10 on: 31 October 2008, 09:49:51 »

Briefly looking through the 2 lists below, there would not "appear"  :-/ to be any reason why the two cant be merged into a complete set as in the obdII list, for 2.2/2.6/3.2, as this???  http://www.obd-codes.com/trouble_codes/

Apart from the obvious third of an engine missing of course, but i don't see how that can cause a mix up...?


Does such a list exist, for 2 (3) digit codes , or what ever they are called, and would that make life easier for all?(not admin probably) as opposed to a separate list for each engine? Or was it the case, that there is a complete list, and the relevant codes have been separated for each engine? Including tractors?

we did seem to have a bit of a mix up with this on a previous thread, wondered if it would be easier just to have 2 lists if possible,one for 2 digit and one for 4 digit, and be done with it....???? :-/

Just seeking clarification, that's all really :)


2.0 16v list

12 Initiation of diagnosis. n/a
13 Oxygen sensor Open circuit
14 Coolant temperature sensor Voltage low
15 Coolant temperature sensor Voltage high
16 Knock sensor signal circuit No change in voltage
19 Incorrect Revs per Minute (RPM) signal (crankshaft sensor) Incorrect signal, check sensor
21 Throttle position sensor (TPS) Voltage high
22 Throttle position sensor (TPS) Voltage low
23 Knock control module signal Out of range
24 Vehicle speed signal (VSS) No signal
25 Injector valve 1 Voltage high
26 Injector valve 2 Voltage high
27 Injector valve 3 Voltage high
28 Injector valve 4 Voltage high
37 Check light (fault code lamp) Voltage low
38 Oxygen sensor circuit Voltage high
39 Oxygen sensor circuit Voltage low
44 Oxygen sensor Lean exhaust (weak mixture)
45 Oxygen sensor Rich exhaust (rich mixture)
48 Battery Voltage low
49 Battery Voltage high
52 Check light (fault code lamp) Voltage high
53 Fuel pump relay Voltage low
54 Fuel pump relay Voltage high
55 Engine Control Unit (ECU) faulty Check chassis earth and ECU connector.
56 Idle air control Voltage high
57 Idle air control Voltage low
61 Fuel tank vent valve Voltage low
62 Fuel tank vent valve Voltage high
69 Intake air temperature sensor Voltage low
71 Intake air temperature sensor Voltage high
73 Mass air flow temperature Voltage low
74 Mass air flow temperature Voltage high
75 Torque control (automatic) Voltage low
76 Torque control (automatic) Continuous signal, ignition retard long
81 Injector valve 1 Voltage low. Injector short circuit to ground.
82 Injector valve 2 Voltage low. Injector short circuit to ground.
83 Injector valve 3 Voltage low. Injector short circuit to ground.
84 Injector valve 4 Voltage low. Injector short circuit to ground.
87 Air Conditioning (A/C) cut-off relay Voltage low
88 Air Conditioning (A/C) cut-off relay Voltage high  
91 Oxygen sensor heater Voltage high
92 Camshaft sensor Incorrect signal
98 Oxygen sensor heater Voltage low, open circuit


2.5/3.0 v6

10   Variant-Coding Not Programmed
13   O2 Sensor 1 Open Circuit
14   Coolant Temperature Voltage Low
15   Coolant Temperature Voltage High
16   Knock Signal Circuit 1
17   Knock Signal Circuit 2
18   Knock Control Module; Replace Electronic Control Unit (ECU)
19   Incorrect RPM Signal
21   Throttle Position Sensor (TPS) Voltage High
22   Throttle Position Sensor (TPS) Voltage Low
25   Injector Valve 1 Voltage High
26   Injector Valve 2 Voltage High
27   Injector Valve 3 Voltage High  
28   Injector Valve 4 Voltage High
29   Injector Valve 5 Voltage High
31   No Engine RPM Signal
32   Injector Valve 6 Voltage High
33   Exhaust Gas Recirculation (EGR) Valve Voltage Low
34   Exhaust Gas Recirculation (EGR) Valve Voltage High
38   O2 Sensor 1 Circuit Voltage Low
39   O2 Sensor 1 Circuit Voltage High
44   O2 Sensor 1 Lean Exhaust
45   O2 Sensor 1 Rich Exhaust
46   Secondary Air Pump Voltage Low
47   Secondary Air Pump Voltage High
48   Battery Voltage Low
49   Battery Voltage High
52   Telltale (Check Light) Voltage High
53   Fuel Pump Relay Voltage Low
54   Fuel Pump Relay Voltage High
55   Replace Electronic Control Unit (ECU)
56   Idle Air Control Voltage High
57   Idle Air Control Voltage Low
59   Intake Manifold Valve 1 Voltage Low
61   Fuel Tank Ventilation Valve Voltage Low
62   Fuel Tank Ventilation Valve Voltage High
63   Intake Manifold Valve 1 Voltage High
69   Intake Air Temperature Voltage Low
71   Intake Air Temperature Voltage High
73   Mass Air Flow Sensor Voltage Low
74   Mass Air Flow Sensor Voltage High
75   Torque Control Voltage Low
76   Continuous Torque Control
81   Injector Valve 1 Voltage Low
82   Injector Valve 2 Voltage Low
83   Injector Valve 3 Voltage Low
84   Injector Valve 4 Voltage Low
85   Injector Valve 5 Voltage Low
86   Injector Valve 6 Voltage Low
87   A/C Cutoff Relay Voltage Low
88   A/C Cutoff Relay Voltage High
89   O2 Sensor 2 Open Circuit
91   O2 Sensor 2 Circuit Voltage High
93   Hall Sensor Voltage Low
94   Hall Sensor Voltage High
98   O2 Sensor 2 Circuit Voltage Low
121   O2 Sensor 2 Lean Exhaust
122   O2 Sensor 2 Rich Exhaust
123   Intake Manifold Valve 1 Blocked
124   Intake Manifold Valve 2 Blocked
127   Camshaft Control Voltage Low
128   Camshaft Control Voltage High
129   Exhaust Gas Recirculation (EGR) Valve Feedback Voltage Low
131   Exhaust Gas Recirculation (EGR) Valve Feedback Voltage High
132   Exhaust Gas Recirculation (EGR) Valve Feedback Incorrect Signal
133   Intake Manifold Valve 2 Voltage Low
134   Intake Manifold Valve 2 Voltage High
135   Telltale (Checklight) Voltage Low
136   Unknown Output Driver Error
137   Electronic Control Unit (ECU) Box Temperature High
141   Secondary Air Pump Not Enough Air
142   Secondary Air Pump Air Without Pump
143   Immobiliser No Or Wrong Signal
144   Immobiliser No Signal
145   Immobiliser Wrong Signal


« Last Edit: 31 October 2008, 09:50:44 by chrisgixer »
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