B1582

Component Location





General Description

Personal IC Card system(hereinafter referred to PIC system) makes user more convenient by locking/unlocking door and starting engine without using mechanical key or remote controller. The push switch , attached to the Knob of the MSL, sends driver's intension for starting. If driver with PIC FOB presses push switch, SMART KEY ECU searches FOB with valid ID inside and Once valid FOB is founded, SMART KEY ECU sends release signal to MSL. Then MSL is released by operating solenoid in MSL.
Signal requesting confirmation is used at a time when MSL lock is released.

DTC Description

The ECM sets DTC 'B1582' if the Knob push switch signal lasts for 60 sec,when the starting KNOB is in "OFF" position.

DTC Detecting Condition





Signal Waveform




Fig 1) The Signal Waveform Signal Waveform of PIC
1. trigger : IGN PUSH KNOB
2. LF interior search
3. release MSL command (measured at the serial interface)

Schematic Diagram





Monitor DTC Status

1. Connect scantool to Data Link Connector(DLC).
2. Ignition "OFF"
3. Monitor the "PUSH SWITCH " parameter on the scantool.

Specification : The duration of Push Switch "ON" signal < 60sec.





Fig 2) The current data when the Knob Push Switch is pushed.
Fig 3) DTC 'B1582'
4. Is the monitored parameter within specifications?
** The ECM sets DTC 'PUSH KNOB SWITCH ERROR' if the signal of Knob push switch lasts for 60 sec. when starting KNOB is in "Lock" position.






W/Harness Inspection
1. Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage.
3. Has a problem been found?






Signal Circuit Battery Short Inspection
1. Ignition OFF.
2. PIC IMMOBILIZER MODULE, PIC DOOR WARNING SWITCH connector : Connect.
3. Measure voltage between Signal(IGN PUSH KNOB) terminal of PIC DOOR WARNING SWITCH harness connector and chassis ground.

Specification : 1 V below


4. Is "voltage" display near the specified value?






Component Inspection

Check PIC Door Warning Switch
1. IG KEY : OFF.
2. PIC IMMOBILIZER MODULE, PIC DOOR WARNING SWITCH connector : Connect.
3. Measure voltage between Signal(IGN PUSH KNOB) of PIC IMMOBILIZER MODULE harness connector and chassis ground.
* Check the voltage change of signal line with operating push switch.

Specification :push switch ON -> 12V, OFF -> 0V


4. Is "resistance" display near the specified value?






Verification Of Vehicle Repair

After a repair, it is essential to verifying that the fault has been corrected.
1. Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode.
2. Using scantool, Clear DTC.
3. Operate the vehicle within DTC Enable conditions in General information.
4. Are any DTCs present ?