Difference between revisions of "16816/P0432"
From Ross-Tech Wiki
| Line 19: | Line 19: | ||
* Perform Oxygen Sensor(s) Aging Check | * Perform Oxygen Sensor(s) Aging Check | ||
* Set Readiness | * Set Readiness | ||
| − | * Check for | + | * Check for Leaks in Exhaust |
* Check ECM for firmware updates | * Check ECM for firmware updates | ||
Latest revision as of 14:19, 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.