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Models: 2008-2009 Chevrolet Colorado, TrailBlazer 2008-2009 GMC Canyon, Envoy 2008-2009 HUMMER H3, H3T 2008-2009 Saab 9-7X All Equipped With Engine RPOs LLR, LLV, LL8 Please Refer to GMVIS Condition Some customers may comment that the malfunction indicator lamp (MIL) is illuminated. Some customers may also comment that the engine runs rough. The technician may find DTCs P0300, P0301, P0302, P0303, P0304, P0305, or P0306 set as current or in history, depending on which engine the vehicle is equipped with. Upon further examination, the technician may observe evidence of water intrusion into the spark plug recess area. Cause This condition may be caused by an engine being exposed to a large quantity of water, which may result in some of the water seeping down past the vented threads of an ignition coil bolt, then flowing through the vent opening that is located in the bottom of the related ignition coil bolt hole, and collecting in the spark plug recess area. Correction Important: DO NOT reprogram or replace the engine control module (ECM) for this condition. If evidence of water intrusion in the spark plug recess area/s is not observed, then refer to the appropriate DTC procedures in SI.

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ISSUE Some 2003-2007 F-Super Duty, 2003-2005 Excursion and 2004-2010 E-Series vehicles equipped with a 6.0L engine may exhibit a runs rough, lacks power, hard start, no start concern with or without diagnostic trouble code (DTC) P0611 code or various injector circuit codes. This concern may be caused by a DC-DC converter located in one half of the Fuel Injector Control Module (FICM) or by the main circuit board in the other half of the FICM. ACTION Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE FICM Information: The FICM contains two major internal components, the main circuit board and a DC-DC converter. The DC-DC converter is the device that amplifies battery voltage to 48 volts to operate the injectors. Low FICM supply voltage results in increased FICM operating loads, potentially damaging or shortening the life of the FICM. For contribution codes without circuit codes, go to Powertrain Controls/Emissions Diagnosis (PC/ED) pinpoint test P. Do not continue with this procedure. 1. Connect Integrated Diagnostic System (IDS) scan tool and confirm battery voltage is greater then 11.5 volts key on engine off (KOEO). a. If battery voltage is less then 11.5 volts KOEO, do not continue with this article. Refer to Workshop Manual (WSM), Section 414-00. b. If battery voltage is 11.5 volts KOEO or higher, continue to Step 2. 2. Remove the FICM relay.

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the engine fan running constantly with code P2073(004) Electric fan for engine & AC, open circuit; this may be caused by the wiring harness between the ECU and the engine fan or the engine control unit fan end stage malfunctioning. To resolve, perform the below procedure. Only vehicles as outlined in Service Campaign Bulletin No. 2003110006 are affected, see vehicle range shown. When performing Service Campaign Bulletin No. 2003110006 only, the engine ECU does not need to be exchanged. All engine ECUs exchanged under warranty for the above condition must be accompanied by the freeze frame data for the respective DTC. Claims submitted without this information will be debited back to the dealer.

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2000 Mercedes-Benz ML320 3.2L 2001 Mercedes-Benz E320 3.2L 2001 Mercedes-Benz C240 2.6L 2001 Mercedes-Benz E320 4Matic 3.2L 2001 Mercedes-Benz C320 3.2L 2002 Mercedes-Benz ML320 3.2L Potential Causes: Pedal Sensor Throttle Body Wiring Tech Tips: With new sensor the throttle stops must be relearned. Use compatible scan tool and perform adaptations. ALWAYS verify charging system voltage is correct. Tests/Procedures: 1. Connect scan tool and monitor voltages of pedal sensor B37. Signal 1 (Accelerator pedal position: Idle speed):[0.2...0.5] V Signal 2 (Accelerator pedal position: Idle speed):[0.1...0.5] V Signal 1 (Accelerator pedal position:Kickdown):[4.3...4.8] V Signal 2 (Accelerator pedal position:Kickdown):[2.1...2.5] V 3. Test throttle body voltages with scan tool. Potentiometer #2 signal voltage ignition on, accelerator pedal position CTP 0.3-0.9 VDC, WOT > CTP value Potentiometer #1 signal voltage Ignition on, accelerator pedal position CTP 4.0-4.6 VDC, WOT < CTP value.

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Manual contains in-depth maintenance, service and repair information for the Mercedes-Benz C-Class from 1994 to 2000. The aim throughout has been simplicity and clarity, with practical explanations, step-by-step procedures and accurate specifications. Whether you’re a professional or a do-it-yourself Mercedes-Benz owner, this manualhelps you understand, care for and repair your car Electrical system service, with an easy-to-use illustrated component
locator section. • Comprehensive wiring schematics, including power distribution and grounds. • Mercedes-Benz OBD II diagnostic trouble codes, SAE-defined OBD II P-codes, as well as basic scan tool operation.
• Mercedes-Benz factory tolerance, wear limits, adjustments and tightening torque