Driver Side Door Entry Lock Function does not Operate: Procedure
WARNING: This page is about a different variant/trim than selected.
- CHECK POWER DOOR LOCK OPERATION
- When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to switch operation. Refer to OPERATION CHECK
.
OK
Door locks operate normally.
NG → See step 6
OK: Go to next step
- When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to switch operation. Refer to OPERATION CHECK
.
- READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Main Body / Data List.
- Read the Data List according to the display on the Techstream.MAIN BODY (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
Tester Display Measurement Item/Range Normal Condition Diagnostic Note FL Door Lock Pos Driver door lock position switch signal/LOCK or UNLOCK LOCK: Driver door locked
UNLOCK: Driver door unlocked- OK
On the Techstream screen, the display changes between LOCK and UNLOCK as shown in the chart above.
NG → See step 9
OK: Go to next step
- READ VALUE USING TECHSTREAM (DOOR OUTSIDE HANDLE)
- Enter the following menus: Body Electrical / Smart Key / Data List.
- Read the Data List according to the display on the Techstream.SMART KEY (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
Tester Display Measurement Item/Range Normal Condition Diagnostic Note D-Door Trigger SW Driver side door lock switch / ON or OFF ON: Entry lock switch pressed
OFF: Entry lock switch not pressed- OK
On the Techstream screen, the display changes between ON and OFF as shown in the table above.
NG → See step 4
OK → See step 8
- CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - FRONT DOOR OUTSIDE HANDLE)
- Disconnect the certification ECU (smart key ECU assembly) connector.
- Disconnect the front door outside handle assembly (for driver side) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition L62-18 (TSW1) - z3-1 (TRG+) Always Below 1 Ω L62-18 (TSW1) - Body ground Always 10 kΩ or higher z3-1 (TRG+) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (LOCK SENSOR SIGNAL INPUT)
- Reconnect the certification ECU (smart key ECU assembly) connector.
- Reconnect the front door outside handle assembly (for driver side) connector.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Component with harness connected
(Certification ECU (Smart Key ECU Assembly))- - - Measure the voltage and check for pulses according to the value(s) in the table below.
Standard
Tester Connection Condition Specified Condition L62-18 (TSW1) - L62-15 (E) - Power switch off
- All doors closed
- Lock sensor (for driver side) not touched
Pulse generation L62-18 (TSW1) - L62-15 (E) - Power switch off
- All doors closed
- Lock sensor (for driver side) touched
Below 2 V
NG → See step 7
OK → See step 8
- GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table). Refer to PROBLEM SYMPTOMS TABLE
- REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side). Refer to DISASSEMBLY
- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to REMOVAL
- GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit). Refer to Door Unlock Detection Switch Circuit