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Home >> Mitsubishi >> 2017 >> Lancer SE >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Operation System (Kos) - With Diagnostics - Lancer >> Diagnosis >> Trouble Symptom Chart

Trouble Symptom Chart

Trouble symptom Inspection procedure number Reference
Cannot communicate with KOS-ECU using the scan tool. 1 INSPECTION PROCEDURE 1: CANNOT COMMUNICATE WITH KOS-ECU USING THE SCAN TOOL. 
The keyless operation key cannot be registered using scan tool. 2 INSPECTION PROCEDURE 2: THE KEYLESS OPERATION KEY CANNOT BE REGISTERED USING SCAN TOOL. 
Abnormality in KOS-ECU power supply and ground circuits. 3 INSPECTION PROCEDURE 3: ABNORMALITY IN KOS-ECU POWER SUPPLY AND GROUND CIRCUITS. 
Keyless operation warning display does not disappear. 4 INSPECTION PROCEDURE 4: KEYLESS OPERATION WARNING DISPLAY DOES NOT DISAPPEAR. 
IG knob will not turn (keyless operation is not recognized). 5 INSPECTION PROCEDURE 5: IG KNOB WILL NOT TURN (KEYLESS OPERATION IS NOT RECOGNIZED). 
The engine will not start with KOS (IG knob operates normally). 6 INSPECTION PROCEDURE 6: THE ENGINE WILL NOT START WITH KOS (IG KNOB OPERATES NORMALLY). 
Engine does not start with emergency key. 7 INSPECTION PROCEDURE 7: ENGINE DOES NOT START WITH EMERGENCY KEY. 
No door will be locked or unlocked by operating a lock/unlock switch on any door. 8 INSPECTION PROCEDURE 8: NO DOOR WILL BE LOCKED OR UNLOCKED BY OPERATING A LOCK/UNLOCK SWITCH ON ANY DOOR. 
Driver's door lock/unlock switch does not work. 9 INSPECTION PROCEDURE 9: DRIVER'S DOOR LOCK/UNLOCK SWITCH DOES NOT WORK. 
Front passenger's door lock/unlock switch does not work. 10 INSPECTION PROCEDURE 10: FRONT PASSENGER'S DOOR LOCK/UNLOCK SWITCH DOES NOT WORK. 
Trunk lid open switch does not work. (LANCER) 11 INSPECTION PROCEDURE 11: TRUNK LID OPEN SWITCH DOES NOT WORK. (LANCER) 
The lock switch and liftgate lock release handle of the liftgate lock release handle do not work. (LANCER SPORTBACK) 12 INSPECTION PROCEDURE 12: THE LOCK SWITCH AND OPEN SWITCH OF THE LIFTGATE LOCK RELEASE HANDLE DO NOT WORK. (LANCER SPORTBACK) 
The lock switch of the liftgate lock release handle does not perform the locking operation. (LANCER SPORTBACK) 13 INSPECTION PROCEDURE 13: THE LOCK SWITCH OF THE LIFTGATE LOCK RELEASE HANDLE DOES NOT PERFORM THE LOCKING OPERATION (LANCER SPORTBACK). 
Liftgate lock release handle does not perform the unlocking operation. (LANCER SPORTBACK) 14 INSPECTION PROCEDURE 14: THE OPEN SWITCH OF THE LIFTGATE LOCK RELEASE HANDLE DOES NOT PERFORM THE UNLOCKING OPERATION (LANCER SPORTBACK). 
Keyless entry system does not work. 15 INSPECTION PROCEDURE 15: KEYLESS ENTRY SYSTEM DOES NOT WORK. 
KOS timer lock function does not work. 16 INSPECTION PROCEDURE 16: KOS TIMER LOCK FUNCTION DOES NOT WORK. 
Keyless entry hazard light answerback function, the dome light answerback function or the horn answerback function does not work normally. 17 INSPECTION PROCEDURE 17: KEYLESS ENTRY HAZARD LIGHT ANSWERBACK FUNCTION, THE DOME LIGHT ANSWERBACK FUNCTION OR THE HORN ANSWERBACK FUNCTION DOES NOT WORK NORMALLY. 
The trunk is not opened when the keyless operation key "TRUNK" button is operated. (LANCER) 18 INSPECTION PROCEDURE 18: THE TRUNK IS NOT OPENED WHEN THE KEYLESS OPERATION KEY "TRUNK" BUTTON IS OPERATED (LANCER). 
Outer tone alarm does not sound. 19 INSPECTION PROCEDURE 19: OUTER TONE ALARM DOES NOT SOUND. 
Power door locks with selective unlocking does not work. 20 INSPECTION PROCEDURE 20: POWER DOOR LOCKS WITH SELECTIVE UNLOCKING DOES NOT WORK.