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Scott
Scott, ASE Certified Technician
Category: Kia
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Experience:  Kia owner since 1999, Kia repair since 1995. Have up to date Kia info
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Need wiring diagram for 2003 KIA Sorento LX 4wd control sy

Resolved Question:

Need wiring diagram for 2003 KIA Sorento LX 4wd control system
Submitted: 3 years ago.
Category: Kia
Expert:  Scott replied 3 years ago.
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Scott, ASE Certified Technician
Category: Kia
Satisfied Customers: 1638
Experience: Kia owner since 1999, Kia repair since 1995. Have up to date Kia info
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Expert:  Scott replied 3 years ago.
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Expert:  Scott replied 3 years ago.

Here you go.

 

TCCM
EST Circuit diagram (1)

ATT(or TOD) Circuit diagram (2)

 

Expert:  Scott replied 3 years ago.
TRANSFER HIGH/LOW (L4) SWITCH
Diagnostic trouble
P1795

Transfer High/low (L4) switch signal malfunction
Possible
cause
4WD low switch signal line open, short, or disconnected.

Step
Inspection
Action
1
Check the connector connecting condition between the TCM and transfer High/low switch.
Yes
Go to the next step.
No
Repair or replace it.
2
Measure the voltage between the TCM B18 terminal and ground.

Yes
Go to the step 4 after checking wiring.
No
Go to the next step.
3
After disconnecting the EC-AT TCM connector, Check if transfer High/low switch circuit is normal.
Yes
Go to step 5.
No
Go to the next step after repair as needed.
4
After disconnecting the transfer High/low switch connector, Check if transfer High/low switch is normal.
Yes
Check the wiring and the connector between TCM and switch.
If normal, go to the next step.
If abnormal, repair wiring and connector.
No
Replace transfer High/low switch.
5
After erasing the malfunction code, check if it is indicated again when IG switch is on.
Yes
Go to the next step after replacing new TCM.
If problem is corrected, replace TCM.
No
The problem is a temporarily poor connection of harness or connectors, and should be investigated further.
6
Return vehicle to original condition. Clear all DTC's. Verify repairs by driving vehicle with scan tool connected and monitor for pending codes.

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