User manual MITSUBISHI CHASSIS ELECTRICAL SERVICE MANUAL

[. . . ] 7 WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES WARNING!(1) Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and passenger (from rendering the SRS inoperative). (2) Service or maintenance of any SRS component or SRS-related component must be performed only at an authorized MITSUBISHI dealer. (3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related component. [. . . ] Cases where the problem is not eliminated by a single response to one area are common, due to several body parts being imperfectly earthed. Caution 1. Connecting a high tension cable to the noise filter may destroy the noise filter and should never be done. Since failure caused by this may result in misdiagnosis due to inability to identify the noise source, this operation must be performed. Noise prevention should be performed by suppressing strong sources of noise step by step. current, impedance (resistance against A. C. ) decreases, and current flow is facilitated. A noise suppressing condenser which takes advantage of this property is inserted between the power line for the noise source and the earth. current, but impedance rises as the number of waves increases relative to the A. C. A noise suppressing coil which takes advantage of this property is inserted into the power line for the noise source, and works by preventing the noise component from flowing or radiating out of the line. spot={{ID-#1}}link=GA spot={{ID-#2}}link=GA 54-66 CHASSIS ELECTRICAL - Radio and Tape Player A-5 Some noise appears when there is vibration or shocks during travelling. Are connectors properly connected?Yes Does noise appear when the radio switch is turned on while the vehicle is stopped and the radio is struck while tuned away from a station?Static electricity noise: Body static electric from the shock absorber rubber bushings used to prevent vibration, tyres, etc. Since no measures can be taken on the radio side, other steps should be taken to discharge the static electricity of the vehicle body. (Is the mounting screw tightened securely?) Yes Is the antenna correctly earthed?(If noise appears when the antenna is moved, this means the earth is not securely connected. ) Yes Repair or replace radio. No No If rust is present at the antenna earth screw, clean and tighten the earth securely. A-6 Ever-present noise. Noise is often created by the following factors, and often the radio is OK when it is checked individually. D Travelling conditions of the vehicle D Terrain of area travelled through D Surrounding buildings D Signal conditions D Time period For this reason, if there are still problems with noise even after the measures described in steps A-1 to A-8 have been taken, get information on the factors listed above as well as determining whether the problem occurs with UKW/MW/LW, the station names, frequencies, etc. , and contact a service centre. CHASSIS ELECTRICAL - Radio and Tape Player B. RADIO B-1 No power is supplied when the switch is set to ON. Is dedicated fuse No. Repair harness. 54-67 No No B-2 No sound from one speaker. Check to see if there is any sound when attached to another radio. No Remove the connector on the back of the radio and check the speaker harness for conductance. Yes Repair or replace radio. Yes It conducts electricity but is shorted out. Repair speaker harness. Yes Repair speaker harness and ensure proper connection of relay connectors. 54-68 CHASSIS ELECTRICAL - Radio and Tape Player B-3 There is noise but no reception for UKW/MW/LW or no sound from UKW/MW/LW. Is the check being conducted under special electrical field conditions?No Yes Example: In an underground garage or inside a building. Is proper performance obtained when the vehicle is moved?Yes No Yes Yes OK OK Reconnect Repair or replace radio. B-4 Insufficient sensitivity. Is the check being conducted under special electrical field conditions?No Yes Example: In an underground garage or inside a building. Is proper performance obtained when the vehicle is moved? [. . . ] (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points. ) NOTE Connect the MUT-II to the 16-pin diagnosis connector (black). ERASING DIAGNOSIS CODE Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points. CHECK BY USING SIMPLE DIAGNOSIS MODE (1) Set the MUT-II to simple diagnosis mode, and then select the switch diagnosis mode. (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points. ) (2) In this condition, the following input switches can be checked. CHASSIS ELECTRICAL - Smart Wiring System (SWS) Input Signal Check Function Input signal ETACS Ignition switch (IG1) Ignition switch (ACC) Front door switch (driver's side) Door switches Key reminder switch Front door lock actuator (driver's side) Front door key switch (passenger's side) Back door <SPACE RUNNER> or tailgate <SPACE WAGON> key switch Hazard lamp switch Front fog lamp switch Back-up lamp switch <M/T> Inhibitor switch (reverse) <A/T> Keyless entry transmitter (LOCK and UNLOCK switches) Column switch assembly Tail lamp switch Headlamp switch Dimmer switch Passing switch Right-hand turn signal switch Left-hand turn signal switch Windshield mist wiper switch Windshield wiper and washer switches Windshield wiper INT switch Windshield wiper LO switch Windshield wiper HI switch Rear wiper INT switch Rear wiper and washer switches Headlamp washer switch Power window switches Multi center display Sunroof Any switch Function switch Any switch Turned from OFF to ON Shift lever moved to R position Selector lever moved to R position Buzzer/LED operation condition Turned from OFF to ON Turned from OFF to ACC 54-111 Driver's door opened from closed condition All doors closed to any door opened Ignition key removed from ignition key cylinder (from inserted position) Driver's door lock knob moved from lock position to unlock position or vice versa Passenger's door locked or unlocked using ignition key Back door <SPACE RUNNER> or tailgate <SPACE WAGON> locked or unlocked using ignition key Turned from OFF to ON LOCK or UNLOCK switch turned OFF to ON Lighting switch turned to tail lamp position from any other position Lighting switch turned to headlamp position from any other position Turned from OFF to ON 54-112 Code No. [. . . ]