Difference between revisions of "16816/P0432"
From Ross-Tech Wiki
| Line 7: | Line 7: | ||
==== Possible Causes ==== | ==== Possible Causes ==== | ||
| − | * Failed | + | * Failed Ceramic Monolith in Catalyst |
* Oxygen Sensor(s) defective | * Oxygen Sensor(s) defective | ||
| − | * Leak in | + | * Leak in Exhaust System |
| − | * Firmware issue with ECM | + | * Firmware issue with Engine Control Module (ECM) |
==== Possible Solutions ==== | ==== Possible Solutions ==== | ||
Revision as of 13:53, 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 Leak 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.