2004 Mitsubishi Endeavor Service Repair Manual

2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor GENERAL DESCRIPTION FEATURES The 4ABS ensures directional stability and control during hard braking. This ABS uses a 4-sensor 4-channel system that controls all four wheels independently of each other. The basic system is the same as that for the Lancer.  EBD (Electronic Brake-force Distribution system) control has been installed to provide the ideal braking force for the rear wheels. EBD CONTROL In ABS, electronic control is used so the rear wheel brake hydraulic pressure during braking is regulated by rear wheel control solenoid valves in accordance with the vehicle's rate of deceleration. The front and rear wheel slippages are calculated from the signals received from the various wheel sensors. EBD control is a control system which provides a high level of control for both vehicle braking force and vehicle stability. The system has the following features:  To shorten the harness wires and enhance data transmission reliability, communication with other ECU is performed over a CAN (Controller Area Network).  Fail-safe function ensures that safety is maintained.  Diagnostic function provides improved serviceability.  Because the system provides the optimum rear wheel braking force regardless of vehicle load and the condition of the road surface, the system reduces the required pedal depression force, particularly when the vehicle is heavily loaded.  Because the duty placed on the front brakes is reduced, the increases in pad temperature can be controlled during front brake application to improve pad wear. 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

 Control valves such as the proportioning valve are not required. CONSTRUCTION DIAGRAM Fig. 1: Locating Anti Lock Brake Components Courtesy of MITSUBISHI MOTOR SALES OF AMERICA. NOTE: On vehicles with ASC, the ABS system is controlled by the TCL/ASC-ECU. For the system construction, refer to GENERAL INFORMATION . 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 2: Anti Lock Brake Component Legend Courtesy of MITSUBISHI MOTOR SALES OF AMERICA. SYSTEM CHECK SOUND When starting the engine, a thudding sound can sometimes be heard coming from the engine compartment. This is a normal sound during the ABS self-check. ABS OPERATION SOUNDS AND SENSATIONS During normal operation, the ABS makes several sounds that may seem unusual at first:  A whining sound is caused by the ABS hydraulic unit motor.  When pressure is applied to the brake pedal, the pulsation of the pedal causes a scraping sound.  When the brakes are applied firmly, the ABS operates, rapidly applying and releasing the brakes many times per second. This repeated application and release of braking forces can cause the suspension to make a thumping sound and the tires to squeak. 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

LONG STOPPING DISTANCES ON LOOSE ROAD SURFACES When braking on loose surfaces like snow-covered or gravel roads, the stopping distance can be longer for an ABS-equipped vehicle than the stopping distance for a vehicle with a conventional brake system. SHOCK AT STARTING CHECK Shock may be felt when the brake pedal is lightly pressed while driving at a low speed. This is a normal characteristic because the ABS system operation check is carried out when vehicle speed is 8 km/h (5 mph) or less. ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS INTRODUCTION TO ANTI-LOCK BRAKING SYSTEM DIAGNOSIS The anti-lock braking system (ABS) operates differently from conventional brake systems. These differences include sounds, sensations, and vehicle performance that owners and service technicians who are not familiar with ABS may not be used to. Some operational characteristics may seem to be malfunctions, but they are simply signs of normal ABS operation. When diagnosing the ABS system, keep these operational characteristics in mind. Inform the owner of the kind of performance characteristics to expect from an ABS-equipped vehicle. ABS DIAGNOSTIC TROUBLE CODE DETECTION CONDITIONS ABS diagnostic trouble codes (ABS DTCs) are set under different conditions, depending on the malfunction detected. Most ABS DTCs will only be set during vehicle operation. Some ABS DTCs will also be set during the ABS self-check immediately after the engine is started. When you check if an ABS DTC will be displayed again after the DTC has been erased, you should duplicate the ABS DTC set conditions. Depending on the detection timing and set conditions for the specific ABS DTC, you must either drive the vehicle or turn the engine off and restart it. To set the proper conditions for that DTC again, refer to ABS DTC SET CONDITIONS for each ABS DTC that you are trying to reset. ABS DIAGNOSTIC TROUBLESHOOTING STRATEGY 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted most of the possible ways to find an ABS fault. 1. Gather information about the problem from the customer. 2. Verify that the condition described by the customer exists. 3. Check the vehicle for any ABS DTC. 4. If you cannot verify the condition and there are no ABS DTCs, the malfunction is intermittent. Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS . 5. If you can verify the condition but there are no ABS DTCs, or the system cannot communicate with the scan tool, check that the basic brake system is operating properly.  If the basic brake system is not operating properly, refer to the BASIC BRAKE SYSTEM DIAGNOSIS .  If the basic brake system is operating properly, refer to SYMPTOM CHART . 6. If there is an ABS DTC, record the number of the DTC, then erase the DTC from the memory using the scan tool. 7. Duplicate the ABS DTC set conditions to see if the same ABS DTC will set again.  If the same ABS DTC sets again or the ABS DTC cannot be erased, perform the diagnostic procedures for the DTC. Refer to HOW TO DIAGNOSE THE CAN BUS LINE .  If you cannot get the same ABS DTC to set again, the malfunction is intermittent. Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS . DIAGNOSTIC FUNCTION ON-BOARD DIAGNOSTICS If the ABS-ECU detects any problem in the CAN communication line or the ECUs, which the ABS-ECU is communicating with, it stores a diagnostic trouble code. The DTCs have 27 items. The DTCs can be confirmed by connecting scan tool MB991958 (MUT-III sub assembly.) The stored DTCs are not erased even after the 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

ignition switch has been turned to the LOCK (OFF) position, or the battery has been disconnected. The DTCs can be erased by operating scan tool MB991958 (MUT-III sub assembly.) HOW TO CONNECT THE SCAN TOOL (MUT-III) Required Special Tools:  MB991958: Scan Tool (MUT-III Sub Assembly)  MB991824: Vehicle Communication Interface (V.C.I.)  MB991827: MUT-III USB Cable  MB991910: MUT-III Main Harness A 1. Ensure that the ignition switch is at the "LOCK" (OFF) position. 2. Start up the personal computer. 3. Connect special tool MB991827 to special tool MB991824 and the personal computer. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 3: Connecting Special Tool To Data Link Connector 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA. 4. Connect special tool MB991910 to the V.C.I. 5. Connect special tool to the data link connector. 6. Turn the V.C.I. power switch to the "ON" position. 7. Start the MUT-III system on the personal computer. HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES Required Special Tools:  MB991958: Scan Tool (MUT-III Sub Assembly)  MB991824: Vehicle Communication Interface (V.C.I.)  MB991827: MUT-III USB Cable  MB991910: MUT-III Main Harness A 1. Connect scan tool MB991958 to the data link connector. NOTE: When the V.C.I. is energized, the V.C.I. indicator light will be illuminated in a green color. NOTE: Disconnect the scan tool in the reverse order of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. NOTE: If the battery voltage is low, diagnostic trouble codes will not be set. Check the battery if scan tool MB991958 does not display. 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 4: Connecting Scan Tool MB991958 To Data Link Connector Courtesy of MITSUBISHI MOTOR SALES OF AMERICA. 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

2. Turn the ignition switch to the "ON" position. 3. Select "Interactive Diagnosis" from the start-up screen. 4. Select "System Select." 5. Choose "ABS" from the "CHASSIS" tab. 6. Select "MITSUBISHI." 7. Select "Diagnostic Trouble Code." 8. If a DTC is set, it is shown. 9. Choose "DTC erase" to erase the DTC. HOW TO READ DATA LIST Required Special Tools:  MB991958: Scan Tool (MUT-III Sub Assembly)  MB991824: Vehicle Communication Interface (V.C.I.)  MB991827: MUT-III USB Cable  MB991910: MUT-III Main Harness A 1. Connect scan tool MB991958 to the data link connector. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. 2004 Mitsubishi Endeavor LS 2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

2004 Mitsubishi Endeavor Service Repair Manual

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