DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK POWER DOOR LOCK OPERATION
CHECK VEHICLE EQUIPMENT
CHECK POWER BACK DOOR OPERATION
READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)
READ VALUE USING INTELLIGENT TESTER (BACK DOOR LOCK SWITCH, BACK DOOR OPEN SWITCH)
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - BACK DOOR ELECTRICAL KEY ANTENNA [for Outer])
REPLACE BACK DOOR ELECTRICAL KEY ANTENNA (for Outer)
CHECK BACK DOOR ELECTRICAL KEY ANTENNA [for Outer] (OPERATION)
CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH - BODY GROUND)
ENTRY AND START SYSTEM (for Entry Function) - Back Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
When the back door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) power door lock control system, or 2) electrical key antenna (for outside luggage compartment), or 3) main body ECU (cowl side junction block LH), or 4) certification ECU (smart key ECU assembly).
WIRING DIAGRAM
INSPECTION PROCEDURE
- Before performing the inspection, check that there are no problems related to the "CAN Communication System" and "LIN Communication System".
| 1.CHECK POWER DOOR LOCK OPERATION |
When the door control switch of the master switch assembly is operated, check that the locked doors unlock.
- OK:
- Door locks operate normally.
| | GO TO POWER DOOR LOCK CONTROL SYSTEM ()
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| 2.CHECK VEHICLE EQUIPMENT |
Check if the power back door is equipped on the vehicle.
Result| Result | Proceed to |
| w/ Power Back Door System | A |
| w/o Power Back Door System | B |
| 3.CHECK POWER BACK DOOR OPERATION |
When the power back door switch is operated, check that the power back door open and close.
- OK:
- Power back door system is normal.
Result| Result | Proceed to |
| Power back door system is abnormal | A |
| Power back door system is normal | B |
| A | |
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| GO TO POWER BACK DOOR SYSTEM ()
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| 4.READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH) |
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Main Body / Data List.
Read the Data List according to the display on the intelligent tester.
Main Body| Tester Display | Measurement Item / Range | Normal Condition | Diagnostic Note |
| Back Lock Pos switch | Back door lock position switch signal / ON or OFF | ON: Back door is unlocked
OFF: Back door is locked | - |
- OK:
- On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.
| | GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Back Door LOCK/UNLOCK Functions do not Operate) ()
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| 5.READ VALUE USING INTELLIGENT TESTER (BACK DOOR LOCK SWITCH, BACK DOOR OPEN SWITCH) |
Using the intelligent tester, read the Data List.
Main Body| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
| Back Door Handle SW | Back door open switch / ON or OFF | ON: Back door open switch is pushed
OFF: Back door open switch is not pushed | - |
Entry&Start| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
| Tr/B-Door Lock SW | Back door lock switch / ON or OFF | ON: Back door lock switch is pushed
OFF: Back door lock switch is not pushed | - |
- OK:
- "ON" (switch is pushed) and "OFF" (switch is not pushed) appears on the screen.
| 6.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] - BACK DOOR ELECTRICAL KEY ANTENNA [for Outer]) |
Disconnect the E29 ECU connector.
Disconnect the K23 antenna connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| E29-31 (CLG8) - K23-1 (CLG5) | Always | Below 1 Ω |
| E29-32 (CG8B) - K23-2 (CLGB) | Always | Below 1 Ω |
| E29-31 (CLG8) - Body ground | Always | 10 kΩ or higher |
| E29-32 (CG8B) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 7.REPLACE BACK DOOR ELECTRICAL KEY ANTENNA (for Outer) |
Replace the back door electrical key antenna ().
| 8.CHECK BACK DOOR ELECTRICAL KEY ANTENNA [for Outer] (OPERATION) |
Check that the entry functions operate normally.
- OK:
- Entry functions operate normally.
| | REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
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| OK | |
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| END (ELECTRICAL KEY ANTENNA [for Outside Luggage Compartment] IS DEFECTIVE) |
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| 9.CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH - BODY GROUND) |
Disconnect the S7 switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| S7-2 (L) - Body ground | Always | Below 1 Ω |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| OK | |
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| REPLACE BACK DOOR OPENER SWITCH ()
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