Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA20064RUNNER SR5, 4.7 T, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSPOWER DOOR LOCK - DIAGNOSTICSPRE-CHECK
2006 Toyota 4Runner SR5, 4.7 T, AWD
Power Door Lock - Diagnostics: Pre-Check
2006 Toyota 4Runner SR5, 4.7 T, AWDSECTION Pre-Check
- USING HAND-HELD TESTER
- Hook up the hand-held tester to the DLC3.
- Monitor the ECU data by following the prompts on the tester screen.
HINT:
Hand-held tester has a Snapshot function which records the monitored data.
Refer to the hand-held tester operator's manual for further details.
- DTC CLEAR
- The DTCs and freeze frame data will be erased by the hand-held tester to erase the codes.
- DATA LIST
HINT:
According to the DATA LIST displayed by the hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one of the methods to shorten labor time.
- Connect the hand-held tester to the DLC3.
- Turn the ignition switch ON.
- According to the display on tester, read the DATA LIST.
Standard (Body ECU):
ITEM NORMAL CONDITION TABLEItem Measurement Item/Display (Range) Normal Condition Diagnostic Note KEY UNLK WRN SW Key unlock warning switch signal/ON or OFF ON: Key is in ignition key cylinder
OFF: No key is in ignition key cylinder- D DOR CTY SW Driver side door courtesy switch signal/ON or OFF ON: Driver side door is open
OFF: Driver side door is closed- P DOR CYT SW Passenger side door courtesy switch signal/ON or OFF ON: Passenger side door is open
OFF: Passenger side door is closed- Rr DOR CTY SW Rear door courtesy switch signal/ON or OFF ON: Either right or left rear door is open
OFF: Both right and left doors are closed- P LOCK POS SW Passenger side door lock position switch signal/ON or OFF ON: Passenger side door lock is in unlock position
OFF: Passenger side door lock is in lock position- Rr LOCK POS SW Rear door lock position switch signal/ON or OFF ON: Rear door lock is in unlock position
OFF: Rear door lock is in lock position- IG SW IG switch signal/ON or OFF ON: Key is in ON or START position
OFF: Key is in OFF or ACC position- D LOCK POS SW Driver side door lock position switch signal/ON or OFF ON: Driver side door lock is in unlock position
OFF: Driver side door lock is in lock position- D/L SW-LOCK Manual door lock switch LOCK signal/ON or OFF ON: Manual door lock switch is in lock position
OFF: Manual door lock switch is in neutral position
(Common to driver side and passenger side mode)- D/L SW-UNLOCK Manual door lock switch UNLOCK signal/ON or OFF ON: Manual door lock switch is in unlock position
OFF: Manual door lock switch is in neutral position
(Common to driver side and passenger side mode)- DOR KEY SW-LOCK Key operation door lock switch signal/ON or OFF ON: Key operation door lock switch is in lock position
OFF: Key operation door lock switch is in neutral position
(Common to driver side and passenger side mode)- P DOR KEY SW-UL Key operation passenger door unlock switch signal/ON or OFF ON: Passenger key operation door lock switch is in unlock position
OFF: Passenger key operation door lock switch is in neutral position- D DOR KEY SW-UL Key operation driver door unlock switch signal/ON or OFF ON: Driver key operation door lock switch is in unlock position
OFF: Driver key operation door lock switch is in neutral position- UNLK/KEY TWICE Key operation driver door 2-step unlock switch signal/ON or OFF ON: All doors are unlocked when driver side door key cylinder is turned to unlock twice (2-step unlocking function)
OFF: Only driver side door is unlocked when driver side door key cylinder is turned to unlock once- UNLOCK/PARK Park/neutral position switch signal/ON or OFF ON: Ignition switch ON, vehicle speed 0 km/h and shift to any position except P position --> Shift to P position --> all doors unlock
OFF: Ignition switch ON, vehicle speed 0 km/h and shift to any position except P position- AUTO LOCK/SHIFT Park/neutral position switch signal/ON or OFF ON: Driver key operation door lock switch is in unlock position
OFF: Driver key operation door lock switch is in neutral position- OPEN DOOR WARN Door courtesy switch signal/ON or OFF ON: Each door is open
OFF: All doors are closed- AUTO LOCK DELAY Door courtesy switch signal/60s or 30s 60s: Door auto locking time is 60 sec.
30s: Door auto locking time is 30 sec.- Standard (Back Door ECU):
ITEM NORMAL CONDITION TABLEItem Measurement Item/Display (Range) Normal Condition Diagnostic Note KEY SW (UNLK) Back door key lock and unlock switch signal/ON or OFF ON: Back door lock key cylinder is turned to unlock
OFF: Key is in back door lock key cylinder (original position)- KEY SW (LOCK) Back door key lock and unlock switch signal/ON or OFF ON: Back door lock key cylinder is turned to lock
OFF: Key is in back door lock key cylinder (original position)- HALF LATCH SW Back door half latch switch signal/ON or OFF ON: Back door is open
OFF: Back door is closed- FULL LATCH SW Back door full latch switch (courtesy SW) signal/ON or OFF ON: Back door is closed
OFF: Back door is open- DOOR HANDLE SW Back door opener switch signal/ON or OFF ON: Back door opener is pushed
OFF: Back door opener is not pushed- LOCK STATUS Back door position switch signal/UNLOCK or LOCK UNLOCK: Back door is unlock
LOCK: Back door is lock- - ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand-held tester allows the relay, VSV, actuator and so on to operate without parts removal. Performing the ACTIVE TEST as a first step of troubleshooting is one of the methods to shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
- Connect the hand-held tester to the DLC3.
- Turn the ignition switch ON.
- According to the display on the tester, perform the ACTIVE TEST.
Standard (Body ECU):
ITEM DIAGNOSTIC NOTEItem Test Details Diagnostic Note OPN DOR WRN LGT Turn open door warning light ON/OFF (All doors are closed) - DOOR LOCK Drive door lock motor at all doors LOCK/OFF - DOOR LOCK Drive door lock motor at all doors UNLOCK/OFF -
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.