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Check Engine Light came on

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Old Sep 11, 2009 | 04:14 PM
  #1  
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Default Check Engine Light came on

How and where do I get the codes to find out what's wrong?
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Old Sep 11, 2009 | 05:39 PM
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How To Check DTC Codes

1) Turn on the ignition, but don't start the engine.
2) Press "Reset" button in order to clear any IPC display warning messages.
3) Press and hold "Options" and press "Fuel" 4 times within a 10 second period.
4) The computer will now scroll through all the modules, showing the error codes. Once it is done it will display "No More Codes" At any time you can scroll up and down to see each code by using the "Trip" and the "Options" buttons. Scroll to the component that has the code and press the "Gauges" button to view the code(s) numbers. To scroll through these code numbers, use the "Trip" and "Options" button again. Hold "Reset" to clear any codes. You can delete one code at time or all codes in any component.
5) Press the "E/M" button or shut off ignition key to end session
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Old Sep 11, 2009 | 06:21 PM
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Write them down then go to the website...http://www.stengel.net/diccodes.htm...it will give you a description of what the codes mean and from what piece of equiptment. Let us know what they are and we could help identify the offending piece.
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Old Sep 11, 2009 | 06:30 PM
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Hey thanks man. That hepled me alot and I got the codes :


HVAC: B0361 H , B0363 H & B0441 H C

AO-LDCM : B2252 H , B20206 H , U1064 H

10-PCM: P0410 H C

A1-RDCM: U1064 H

A6-SCM B2860 H


The HVAC codes kept coming back even after I cleared them so is that telling me where the problem is? Is ther any one who can tell me what thes codes mean? I'v seen it answered on this forum before. It's a lot of time for someone to take to reply but I've read replies to questions like this before here.
Once I started the car after running through the code list the engine light went off. Thanks in advance to all and any who reply to my plead for help.






Going to that link now. THANKS!!!!

Last edited by Carlos Arredondo; Sep 11, 2009 at 06:33 PM. Reason: Seen other post
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Old Sep 11, 2009 | 06:43 PM
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Dosn't seem to be any thing major. A left side ground thing in the HVAC. Thanks.
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Old Sep 11, 2009 | 06:46 PM
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The secondary air injection code is giving you the check engine light.
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Old Sep 11, 2009 | 08:08 PM
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Originally Posted by lucky131969
The secondary air injection code is giving you the check engine light.
I put a K&N in about 3 years ago but the car is basiclly stock
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Old Sep 11, 2009 | 08:55 PM
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Hey Carlos did the code come back?
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Old Sep 11, 2009 | 10:46 PM
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Sorry to high jack this thread but I have code 10 PCM P0420 H C Check egine light is on

Any ideas. I tried to get to the link above with no success>

Help
??
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Old Sep 11, 2009 | 11:22 PM
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Originally Posted by FRED HAMBLE
Sorry to high jack this thread but I have code 10 PCM P0420 H C Check egine light is on

Any ideas. I tried to get to the link above with no success>

Help
??
-----------------------------------------------------------------
DTC P0420 or P0430
Catalyst System Low Efficiency
----------------------------------------------------------------

DTC P0420 or P0430
Circuit Description
In order to maintain low emissions of hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx), the engine controls system uses a 3-way catalytic converter. The catalyst within the converter promotes a chemical reaction, which oxidizes the HC and CO that are present in the exhaust gas. This reaction converts these chemicals into harmless water vapor and carbon dioxide. The catalyst also reduces NOx, converting NOx into nitrogen. The powertrain control module (PCM) monitors this process using heated oxygen sensor (HO2S) bank 1 sensor 2. HO2S bank 1 sensor 2, located in the exhaust stream past the 3-way catalytic converter, produces an output signal which indicates the oxygen storage capacity of the catalyst. This determines the catalyst's ability to effectively convert the exhaust emissions. If the catalyst is functioning correctly, the HO2S bank 1 sensor 2 signal will be far less active than the signal that is produced by HO2S bank 1 sensor 1. This indicates that the 3-way catalytic converter's oxygen storage capacity is below an acceptable threshold.

The PCM performs this diagnostic during idle. When the conditions for running this DTC are met, the following conditions occurs:

The PCM captures the current rear HO2S rich-to-lean status.
The air-to-fuel ratio transitions from rich to lean or from lean to rich, depending on the capture rear HO2S rich-to-lean status.
The air-to-fuel ratio transitions a second time opposite the first air-to-fuel ratio transition.
The PCM captures the response time of the front and rear heated oxygen sensors when the air-to-fuel ratio transitions occur. The HO2S response time goes from less 300 mV to more than 600 mV, and from more than 600 mV to less than 300 mV.
The PCM measures the time it takes the rear HO2S voltage to cross a reference rich-to-lean threshold, minus the time it takes the front HO2S voltage to cross the same rich-to-lean threshold. The difference between the front HO2S time and the rear HO2S time is the oxygen storage capacity of the catalyst. This DTC sets if the time exceeds a predetermined threshold.
Conditions for Running the DTC
DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0131, P0133, P0134, P0135, P0137, P0140, P0141, P0151, P0152, P0153, P0154, P0155, P0157, P0158, P0160, P0161, P0171, P0172, P0174, P0175, P0200, P0300, P0335, P0336, P0341, P0342, P0343, P0351-P0358, P0410, P0440, P0502, P0503, P0506, P0507, P0606, P1120, P1133, P1134, P1153, P1154, P1220, P1336, P1415, P1416, or P1441 are not set.
The intake air temperature (IAT) is more than -7°C (19°F), but less than 75°C (167°F).
The barometric pressure (BARO) is more than 74 kPa (10.7 psi).
The engine is operating.
The engine coolant temperature (ECT) is more than 75°C (167°F), but less than 117°C (243°F).
Since the end of the last idle period, the engine speed is more than 850 RPM for a minimum of:
17 seconds for manual transmissions
27 seconds for automatic transmissions
The Closed Loop fuel control is enabled.
Conditions for Setting the DTC
The PCM determines if oxygen storage capability of the catalytic converter has degraded to less than a calibrated threshold.

Action Taken When the DTC Sets
The malfunction indicator lamp (MIL) is turned ON.
A DTC is stored in memory.
The Freeze Frame/Failure Records are stored.
The Failure Records are updated after the first failure of each ignition cycle.
Conditions for Clearing the MIL/DTC
The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.
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Old Sep 11, 2009 | 11:35 PM
  #11  
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Originally Posted by FRED HAMBLE
Sorry to high jack this thread but I have code 10 PCM P0420 H C Check egine light is on

Any ideas. I tried to get to the link above with no success>

Help
??
byronhunter answered your question but it might be worth bookmarking this: http://www.stengel.net/diccodes.htm It seems to work correctly.
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