Inspection Procedure
- READ VALUE OF HAND-HELD TESTER
- Connect the hand-held tester (with CAN VIM) to the DLC3.
- Turn the ignition switch ON and press the hand-held tester main switch ON.
- Select the items below in the DATA LIST, and read the displays on the hand-held tester.
Driver seat ECU:
DRIVER SEAT ECU - DATA LISTItem Measurement Item/ Display (Range) Normal Condition M3 SW Seat memory switch M3 signal/ ON or OFF ON: Seat memory switch M3 is ON OFF: Seat memory switch M3 is OFF M2 SW Seat memory switch M2 signal/ ON or OFF ON: Seat memory switch M2 is ON OFF: Seat memory switch M2 is OFF M1 SW Seat memory switch M1 signal/ ON or OFF ON: Seat memory switch M1 is ON OFF: Seat memory switch M1 is OFF SET SW Seat memory set switch signal/ ON or OFF ON: Memory set switch is ON OFF: Memory set switch is OFF OK:
On the tester screen, each item should change between ON and OFF according to the above chart.
NG: Go to step 2
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
- INSPECT DRIVING POSITION MEMORY SWITCH
- Remove the driving position memory switch.
- Measure the resistance.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITIONTester Connection Switch Condition Specified Condition 2 (MMRY) - 6 (E) SET switch ON Below 1 Ω 3 (1) - 6 (E) Return switch 1 ON Below 1 Ω 4 (2) - 6 (E) Return switch 2 ON Below 1 Ω 5 (3) - 6 (E) Return switch 3 ON Below 1 Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE DRIVING POSITION MEMORY SWITCH
OK: GO TO NEXT STEP
- CHECK WIRE HARNESS (DRIVER DOOR ECU - DRIVING POSITION MEMORY SWITCH)
- Disconnect the D24 ECU connector.
- Disconnect the D26 switch connector.
- Measure the resistance of the wire harness side connectors.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITIONTester connection Specified condition D24-29 (MM) - D26-2 (MMRY) Below 1 Ω D24-21 (M1) - D26-3 (1) Below 1 Ω D24-20 (M2) - D26-4 (2) Below 1 Ω D24-9 (M3) - D26-5 (3) Below 1 Ω D24-8 (MSWE) - D26-6 (E) Below 1 Ω Fig 2: Identifying D24 Driver Door ECU Connector Terminals And D26 Driving Position Memory Switch Connector TerminalsCourtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR AND REPLACE HARNESS AND CONNECTOR
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE