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 searhes 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. After checking the change lever
posion is "P", SMART KEY ECU makes engine be able to be started by
transmitting key confirmation information to engine ECM.
The ECM sets DTC"B1625"
if there is an communication error between SMART KEY ECU and
EMS.
Item
|
Detecting
Condition
|
Possible Cause
|
DTC
Strategy
|
|
| •
|
Short circuit in signal
harness. |
|
Enable
Conditions
|
|
Threshold
Value
|
|
Detecting
time
|
|
| 1. |
Connect scantool to Data Link
Connector(DLC). |
| 2. |
Ignition "ON" & engine
"OFF" |
| 3. |
Selet "Diagnostic Trouble Codes(DTCs)"mode and
monitor "DTC Status" parameter.
Fig 3) DTC
B1625. |
| 4. |
Is the DTC 'B1625' present ?
|
|
▶ Go to "
Inspection/Repair " procedure.
|
|
|
▶ Fault is
intermittent caused by poor contact in the sensor's and/or
ECM's connector or was repaired and ECM memory was not
cleared. Thoroughly check connectors for looseness, poor
connection, bending, corrosion, contamination, deterioration,
or damage.
Repair or replace as
necessary and then go to "Verification of Vehicle Repair"
procedure.
|
|
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?
|
|
▶ Repair as
necessary and go to "Verification of Vehicle Repair"
procedure.
|
|
|
▶ Go to "
Signal(EMS COM) circuit open Inspection "
procedure.
|
|
Signal(EMS Com) Circuit Open Inspection
| 2. |
PIC IMMOBILIZER MODULE, BCM connector :
Disconnect. |
| 3. |
Measure resistance between Signal(EMS COM) of
PIC IMMOBILIZER MODULE harness connector and Signal(EMS COM) of ECM
harness connector.
|
| 4. |
Is "resistance" display near the specified
value?
|
|
▶ Go to
" Signal(EMS COM) circuit ground short Inspection "
procedure.
|
|
|
▶ Check
for open circuit of Signal(EMS COM) harness.
▶ Repair as necessary and then go to "Verification
of Vehicle Repair"
procedure.
|
|
Signal(EMS Com) Circuit Ground Short
Inspection
| 2. |
PIC IMMOBILIZER MODULE, ECM connector :
Disconnect. |
| 3. |
Measure resistance between Signal(EMS COM) of
PIC IMMOBILIZER MODULE harness connector and chassis
ground.
|
| 4. |
Is "resistance" display near the specified
value?
|
|
▶ Check
connectors for looseness, poor connection, bending, corrosion,
contamination, deterioration, or damage.
Repair or replace as necessary and then go to
"Verification of Vehicle Repair" procedure.
|
|
|
▶ Check for
short to ground in Signal(EMS COM) harness.
▶ Substitute with a known-good "PIC IMMOBILIZER
MODULE" and check for proper operation. If the problem is
corrected, replace "PIC IMMOBILIZER MODULE" and then go to
"Verification of Vehicle Repair"
procedure.
|
|
| 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 ?
|
|
▶ Go to the
applicable troubleshooting procedure.
|
|
|
▶ System is
performing to specification at this
time.
|
|
