Engine Controls - MIL ON, DTC's P2431/P2432/P2433 Stored
26 12 04July 2, 2012
2028415
Vehicle Information
Condition
MIL ON, Secondary Air DTCs P2431, P2432, P2433 Stored in ECM Fault Memory
One or more of the following fault codes may be stored in the ECM fault memory:
Technical Background
Secondary Air Pressure Sensor may be contaminated by foreign particles during secondary air injection.
Production Solution
New sensor in production from calendar week 47/2011.
Service
Introduction
^ Install sensor Service-kit Part Number: 07K 198 125
Note:
Adapter harness will be secured in position using the two supplied clips.
Procedure
^ Remove Air Cleaner Housing and intake tube to Throttle Body.
^ Remove the four T30 screws securing Throttle Body to Intake Manifold.
^ Disconnect throttle body electrical connection and set Throttle Body aside.
^ Remove original Secondary Air Pressure Hose between Air Pump and one-way valve.
^ Install new Secondary Air Pressure Hose supplied in Service-kit.
^ Install adapter as shown in figures 1 and 2 below.
^ Re-install Throttle Body, intake tube and Air Cleaner Housing.
^ Secure clip N 04 466 01 midway on adapter harness Secure other (larger end) of clip onto air pipe, 20 mm from sensor.
^ Install the new secondary air hose with sensor and harness into original part position.
^ Connect adapter harness to engine harness.
^ Secure clip 155 971 787 B to engine harness (directly next to its connector housing cover). Secure other end to vacuum hose seen directly below secondary air hose.
^ Ensure adapter harness is now routed and mounted as shown; in a vertical position that does not have the possibility to chafe against other objects.
^ Reinstall Throttle body, intake tube and air cleaner housing.
Warranty
Required Parts and Tools
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.