Difference between revisions of "16816/P0432"

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==== Possible Causes ====
 
==== Possible Causes ====
  
* Failed ceramic monolith in Catalyst
+
* Failed Ceramic Monolith in Catalyst
 
* Oxygen Sensor(s) defective
 
* Oxygen Sensor(s) defective
* Leak in exhaust system
+
* Leak in Exhaust System
* Firmware issue with ECM
+
* Firmware issue with Engine Control Module (ECM)
  
 
==== Possible Solutions ====
 
==== Possible Solutions ====
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* Perform Oxygen Sensor(s) Aging Check
 
* Perform Oxygen Sensor(s) Aging Check
 
* Set Readiness
 
* Set Readiness
* Check for Leak in Exhaust  
+
* Check for Leaks in Exhaust  
 
* Check ECM for firmware updates
 
* Check ECM for firmware updates
  

Latest revision as of 15:19, 9 February 2011

16816/P0432 - Main Catalyst: Bank 2: Efficiency Below Threshold

Possible Symptoms

  • Malfunction Indicator Light (MIL) ON

Possible Causes

  • Failed Ceramic Monolith in Catalyst
  • Oxygen Sensor(s) defective
  • Leak in Exhaust System
  • Firmware issue with Engine Control Module (ECM)

Possible Solutions

  • Inspect Catalyst for internal rattle
  • Check Oxygen Sensor(s)
  • Check Oxygen Sensor(s) Control
  • Perform Oxygen Sensor(s) Aging Check
  • Set Readiness
  • Check for Leaks in Exhaust
  • Check ECM for firmware updates

Special Notes

  • For Audi engine codes ART or AKB, please see TSB 26-04-01
  • For Audi engine code ATQ, please see TSB 26-08-07
  • For Volkswagen engines, please see TSB 01-07-07
  • As per TSB 01-07-54, do not replace the ECM for this DTC. Please see TSB for complete details.