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ohh sorry to hear that i got my audi r8 lights issue solved all thanks to repair service mauals get your a4 manual from Best Manuals it will definately solve your problem i hope u get the benefit have a good day :)
Got DTC P1676 or TCS DTC
31? Replace the Ignition
NOTE: This article applies to '00-02 Accord V6s
and '99-02 Odysseys.
Got a vehicle in your shop with DTC P1676
(FPTDR signal line failure) or TCS DTC 31 (engine
retard command [PFINH] signal)? A bad ignition
switch (the electrical half) could be the culprit.
NOTE: On the HDS, you'll see TCS DTC 31 listed
as TCS DTC 31-2.
Inspect the ignition switch solder joints for any
signs of overheating. If you notice the solder joints
are melted, replace the ignition switch.
• Intake manifold tumble flaps sporadically stick.
• Engine performance is not affected.
Production countermeasure implemented.
What does all of that mean? Put simply, you have a carbon build up issue. Some have had their entire intake manifold replaced? I would have it checked prior to doing something that drastic, carbon build up can be repaired without part replacement in most cases.
The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty. You must access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.
P0146 pd means pending code
Pending codes and DTCs?
Posted on November 12, 2010 by fcrmaster
When reading codes from your vehicle the fault code reader may show them as pending codes or normal Diagnostic Trouble Codes (DTC).
Pending codes (also known as continuous monitor codes) will be registered when an intermittent fault occurs. If that fault does not happen again after x number of start/stop cycles, the ECU will erase the code from memory. If the fault is persistent it becomes a DTC.
If you have read pending codes it is advisable to check the codes again after a week or so. If there is no apparent problem with the vehicle it is safe to erase the codes too and check back. But always make a note of any fault codes with the date and mileage of a vehicle.
If the codes read include a DTC then you need to investigate further. This you can either do yourself or advise your garage. If, again, you don't see an apparent problem (depending n the severity of the code) with the vehicle you can note the codes down and erase them. Then check again after a week or a few days depending on how often the vehicle gets used. If a repair has been made (previous owner) the DTC may just not have been reset after the repair.
The other numbers behind the code 01/06 ,
02/06, 03/06 , 05/06 ,04/06
These don't mean anything . cheap code reader .
DTC P0140 HO2S Circuit Insufficient Activity Sensor 2
DTC P0146 HO2S Circuit Insufficient Activity Bank 1 Sensor 3
DTC P0171 Fuel Trim System Lean Bank 1
DTC P0174 Fuel Trim System Lean Bank 2
Sorry but this is something you should take to a qualified repair shop that has a diagnostic tool that can view sensor scan data. Causes of lean condition trouble codes P0171 P0174 GM 5 3L