Difference between revisions of "16816/P0432"
From Ross-Tech Wiki
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==== Possible Symptoms ==== | ==== Possible Symptoms ==== | ||
| − | + | * Malfunction Indicator Light (MIL) ON | |
==== Possible Causes ==== | ==== Possible Causes ==== | ||
Revision as of 13:28, 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 ECM
Possible Solutions
- Inspect cat for internal rattle, replace if needed
- Check Oxygen Sensor(s)
- Check Oxygen Sensor(s) Control
- Perform Oxygen Sensor(s) Aging Check
- Set Readiness
- Confirm there are no exhaust leaks
- 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.