RSX L4-2.0L (2005)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine Controls - MIL ON/DTC's P1172 or P2A00
07-019
April 12, 2007
Applies To:
2005-06 RSX - ALL
MIL Is On With DTC P1172 or P2A00
SYMPTOM
The MIL is on with PGM-FI DTC P1172 (air fuel sensor [sensor 1] circuit out of range, high) and/or P2A00 (air fuel sensor [sensor 1] circuit
range/performance problem) stored.
PROBABLE CAUSE
The air/fuel sensor is damaged by moisture in the exhaust system during engine warm up.
CORRECTIVE ACTION
Update the PGM-FI software with the HDS. Replace the air/fuel sensor.
NOTE:
The PGM-FI software has been changed to delay the operation of the A/F sensor heater when there is a high probability of moisture in the exhaust
system.
PARTS INFORMATION
Air/Fuel Sensor:
Base model with M/T: P/N 36531-PND-A21
Base model with A/T: P/N 36531-PNE-003
Type-S: P/N 36531-PRB-A11
SOFTWARE INFORMATION
HDS Software Version: 2.006.019 (blue) or later.
NOTE:
If you use an earlier HDS software version, the HDS may incorrectly indicate that the vehicle does not need an update when it actually does.
The updated PGM-FI software program IDs and P/Ns are shown. If these, or later program IDs, are the Current Program ID displayed during the update,
the software for this service bulletin is already installed.
