Engine Controls - MIL ON/DTC's P0133/P0153 Set
Classification: EC10-012Reference: ITB10-032
Date: May 19, 2010
2011 M56; MIL ON WITH DTC P0133 AND / OR P0153
APPLIED VEHICLE: 2011 M56 (Y51)
IF YOU CONFIRM:
The MIL is 'ON' with DTC P0133 and / or P0153 (Air Fuel (A/F) Ratio Sensor 1 circuit slow response, B1or B2) stored in the ECM
AND
There are no drivability issues due to this condition.
ACTION:
1. Refer to Step 2 in the Service Procedure to confirm this bulletin applies to the vehicle you are working on.
2. If this bulletin applies, reprogram the ECM.
NOTE:
Do not replace either A/F sensor for this incident, if it should occur.
CLAIMS INFORMATION
IMPORTANT
The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
SERVICE PROCEDURE
1. Connect CONSULT III (C-III) to the vehicle to begin the reprogramming procedure.
CAUTION
2. When you get to the ECM Reprogramming screen shown in Figure 1, confirm this bulletin applies as follows:
A. On your C-III screen, look at the Part Number column (see Figure 1 example).
^ If this column is blank (no part number listed), this bulletin does not apply.
^ If a Part Number is listed, write it on the Repair Order and then go to Step B.
B. Compare the Part Number you wrote down to the numbers in the Current ECM Part Number column in Table A above.
^ If there is a match, this bulletin applies. Continue with the reprogramming procedure.
NOTE:
If there are two lines (two reprogramming options) on your C-III screen, use the one that does not have the message "Caution! Use ONLY with ITBXX-XXX".
^ If there is not a match, this bulletin does not apply. Close C-III and refer to ASIST for further diagnostic information.
3. If this bulletin applies and you have performed ECM reprogramming, the screen in Figure 2 (below) appears when reprogramming is complete.
NOTE:
If the screen in Figure 2 does NOT display (reprogramming does NOT complete).
^ Print the page from C-III (C-III page example below) and attach it to the Repair Order for Warranty documentation.
4. Make sure to erase all DTCs from all Systems.
NOTE:
During reprogramming, DTCs will set in several systems. These DTCs must be erased from all systems.
5. Test drive the vehicle and make sure it operates correctly and the Check Engine light (or MIL) is OFF.
^ If the MIL comes ON, go back to ASIST for further diagnostic information. Refer to the applicable Electronic Service Manual as needed.
^ Diagnosis and repairs beyond ECM reprogramming are not covered by this bulletin.