Inspection Procedure
- PERFORM ACTIVE TEST USING HAND-HELD TESTER
- Connect the hand-held tester (with CAN VIM) to the DLC3.
- Turn the ignition switch ON and push the hand-held tester (with CAN VIM) main switch ON.
- Select the ACTIVE TEST on the hand-held tester to generate a control command, and then check that the power seat operates.
Driver seat ECU:
DRIVER SEAT ECU - ACTIVE TESTItem Test Details Diagnostic Note RECLINING Test detail: reclining operation FRONT/REAR Vehicle condition: stopped - F VERTICAL Test detail: front vertical operation UP/DOWN Vehicle condition: stopped - LIFTER Test detail: lifter operation UP/DOWN Vehicle condition: stopped - SLIDE Test detail: sliding operation UP/DOWN Vehicle condition: stopped - HEADREST Test detail: headrest operation UP/DOWN Vehicle condition: stopped - CUSHION Test detail: cushion length operation FRONT/REAR Vehicle condition: stopped - OK: The motor operates normally.
NG: Go to step 2
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
- INSPECT POWER SEAT MOTOR (SEE INSPECTION
)
NG: REPLACE POWER SEAT MOTOR
OK: GO TO NEXT STEP
- CHECK WIRE HARNESS (DRIVER SEAT ECU - POWER SEAT MOTOR AND BODY GROUND)
- Disconnect the D27 ECU, P27, P28, P29, P32 and P33 motor connectors.
- Measure the resistance of the wire harness side connectors.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITIONTester connection Specified condition D27-10 (RCL-) - P32-1 Below 1Ω D27-13 (RCL+) - P32-2 Below 1Ω D27-4 (RRV-) - P29-1 Below 1Ω D27-9 (RRV+) - P29-2 Below 1Ω D27-1 (SLD-) - P33-1 Below 1Ω D27-8 (SLD+) - P33-2 Below 1Ω D27-11 (C-) - P27-2 Below 1Ω D27-7 (C+) - P27-1 Below 1Ω D27-2 (FPV-) - P28-2 Below 1Ω D27-5 (FPV+) - P28-1 Below 1Ω D27-6 (GND) - Body ground Below 1Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE