Engine Controls - Cold Engine Stall/MIL ON/DTC P2237
SX4Section Title: Engine
TSB No. TS 05 02218
Division: Automotive
Category: Technical
SUBJECT:
COLD ENGINE WILL NOT CONTINUE TO RUN AND REQUIRES RESTART. AFTER RESTART THE MALFUNCTION INDICATOR LAMP (MIL) MAY ILLUMINATE WITH DTC P2237 (O2 SENSOR POSITIVE CURRENT CONTROL CIRCUIT/OPEN) STORED IN MEMORY.
MODEL(S):
SX4 (RW420)
YEAR:
2007
CONDITION:
After starting, a cold engine will not continue to run. If the engine is restarted without turning the key OFF first, the MIL light may illuminate. A DTC scan will reveal DTC P2237 (O2 Sensor Positive Current Control Circuit/Open) as a current DTC.
CAUSE:
ECM software logic.
CORRECTION:
Reprogram the Engine Control Module (ECM) with the latest Suzuki ECU Programming System (SEPS) software. This software update will stop the DTC from activating incorrectly. Refer to the General TSB 05 XXXXX "ECM (ECU) Reprogramming Verification Procedure Using the Suzuki SDS Tool". If the vehicle does not have the latest version follow the reprogramming procedure described below.
REQUIRED TOOLS AND SOFTWARE:
WARRANTY CLAIM INFORMATION
Reprogramming Procedure:
NOTE:
DO NOT reprogram if the vehicle is already updated with this version software (1.10.1.1) and database (2.008.0130).
1. Access the Suzuki Pitstop.
2. Download and review the Suzuki ECU Programming System Operator's Manual. This must be read and understood COMPLETELY before attempting to reprogram the ECM.
3. Following the procedure outlined in the Suzuki ECU Programming System Operator's Manual, download and install the SEPS Software "SOFTWARE.EXE", (if it is not already installed).
4. Follow the procedure in Section 3.2 of the Operator's Manual to update the Database files. Download and unzip SEPS Data Base "DATABASE.EXE" onto your PC. This step is only required to be done once to accommodate all vehicles covered under this TSB.
NOTE:
This Database "DATABASE.EXE" has been updated with newer data for reprogramming without changing the file name. You are requested to download in order to update the database in your PC.
5. Following the procedures outlined in the Suzuki ECU Programming System Operator's Manual, hook up the SDS Interface Tool P/N 09910-06520 to the vehicle and run the ECM reprogramming software. If the message "[4028] ECU already has the latest version" appears, click "OK" and continue to step 6. The glove box label should already be in the glove box.
NOTE:
You may see the message above when programming. If so follow the instructions then restart the programming procedure.
6. Fill out the Reprogram Label P/N 99963-01501-224 (the part number and version will be displayed at the "The reprogramming is successful" screen). Then affix the label to the back of the glove box door as pictured.
NOTE:
If the symptom remains after reflashing, contact the S.M.A.R.T. Hotline for assistance.
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