Диагностические коды неисправностей Acura MDX

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Что такое ошибка (код, DTC, и др.) например DTC P0420 или DTC P0430? Многие и не знают что с этим делать. У многих владельцев нет специализированных сервисов в регионе. Данная тема, призвана помочь, владельцам, в автомобилях которых, присутствует код неисправности. Здесь приведен алгоритм поиска неисправности по кодам неисправностей на автомобилях MDX. Выглядеть это будет вот в таком формате. Если данная тема реально окажет Вам помощь, пишите, задавайте вопросы.


DTC P0420:
Rear Bank Catalyst System Efficiency Below Threshold (Bank 1)

DTC P0430:
Front Bank Catalyst System Efficiency Below Threshold (Bank 2)

NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
If some of the DTCs listed below are stored at the same time as DTC P0420 and/or P0430*, troubleshoot those DTCs first, then recheck for DTC P0420 and/or P0430*.
P0137, P0138, P0157, P0158, P2270, P2271, P2272*,P2273*: Secondary HO2S (Sensor 2)
P0141, P0161: Secondary HO2S (Sensor 2) heater
P0300: Random misfire.
P0301?P0306: No. 1, No. 2, No. 3, No. 4, No. 5, or No. 6 cylinder misfire detected.
Poor quality fuel can cause these DTCs.
Information marked with an asterisk (*) applies to the front bank (Bank 2).
Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Start the engine. Hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
Test-drive under these conditions:
Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C)
Transmission in D
Vehicle speed between 45?75 mph (72?120 km/h) for 5 minutes or more with cruise control set
Vehicle speed between 55?75 mph (88?120 km/h) for 10 seconds, then decelerate (with the throttle fully closed). Repeat this three or more times
Maintain the vehicle speed at 55 mph (88 km/h) for 4 minutes or more with cruise control set
Monitor the OBD STATUS for DTC P0420 and/or P0430* in the DTCs MENU with the HDS.
Does the HDS indicate EXECUTING?
YES —
Go to step 6.
NO —
If the HDS indicates OUT OF CONDITION, go to step 4 and recheck. If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS indicates FAILED, go to step 8 and recheck.
Continue test driving until a result comes on.
Monitor the OBD STATUS for DTC P0420 and/or P0430* in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES —
Go to step 8.
NO —
If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS indicates EXECUTING, keep driving until a result comes on. If the HDS indicates OUT OF CONDITION, go to step 4 and recheck.
Turn the ignition switch to LOCK (0).
Replace the WU-TWC:
For DTC P0420, replace the rear WU-TWC (Bank 1).
For DTC P0430, replace the front WU-TWC (Bank 2).
Turn the ignition switch to ON (II).
Reset the PCM with the HDS.
Do the PCM idle learn procedure.
Test-drive for about 10 minutes, continually changing the vehicle speed.
Check the CATA MONITOR CONDITION B1 (B2)* in the DATA LIST with the HDS.
Is the condition OK?
YES —
Go to step 15.
NO —
Go to step 13, and recheck.
Test-drive under these conditions:
Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C)
Transmission in D
Vehicle speed between 55?75 mph (88?120 km/h) for 10 seconds, then decelerate (with the throttle fully closed). Repeat this three or more times
Maintain the vehicle speed at 55 mph (88 km/h) for 4 minutes or more with cruise control set
Continue test driving until a result comes on.
Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0420 and/or P0430* indicated?
YES —
Check the fuel quality, then go to step 1.
NO —
Go to step 18.
Monitor the OBD STATUS for DTC P0420 and/or P0430* in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES —
Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 17, go to the indicated DTC's troubleshooting.?
NO —
If the HDS indicates FAILED, check the fuel quality, then go to step 1. If the HDS indicates EXECUTING, keep driving until a result comes on. If the HDS indicates OUT OF CONDITION, go to step 15.
 
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