Inspection Procedure

1. Connect Techstream to the DLC3.
2. Ignition switch on.
3. Check the DATA LIST for proper function of the seat memory switch.

   D-SEAT 

   DATA LIST
   
   

   Item	Switch Position	Specified condition
   Driver Mirror Memory No 1	Driver side mirror position memorized in seat memory switch M 1/NOT MEM or MEM	MEM: Memorized NOT MEM: Not memorized
   Driver Mirror Memory No 2	Driver side mirror position memorized in seat memory switch M 2/NOT MEM or MEM
   Passenger Mirror Memory No 1	Passenger side mirror position memorized in seat memory switch M 1/NOT MEM or MEN
   Passenger Mirror Memory No 2	Passenger side mirror position memorized in seat memory switch M 2/NOT MEM or MEN

   OK: 

   Tester displayed MEM. 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

NG: Go to next step 

1. Remove the seat memory switch.
2. Measure the resistance according to the value(s) in the table below when the switch is operated.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Switch Condition	Specified Condition
   1 - 2	"SET" switch ON	Below 1 Ω
   1 - 2	"SET" switch OFF	10 kΩ or higher
   1 - 4	"1" switch ON	Below 1 Ω
   1 - 4	"1" switch OFF	10 kΩ or higher
   1 - 3	"2" switch ON	Below 1 Ω
   1 - 3	"2" switch OFF	10 kΩ or higher

Fig 1: Inspecting Seat Memory Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SEAT MEMORY SWITCH 

OK: Go to next step 

1. Disconnect the S33 switch connector.
2. Disconnect the O9 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection (Symbols)	Condition	Specified Condition
   S33-2 (MMRY) - O9-25 (MM)	Always	Below 1 Ω
   S33-4(1) - O9-22 (M1)	Always	Below 1 Ω
   S33-3 (2) - O9-23 (M2)	Always	Below 1 Ω
   S33-1 (E) - Body ground	Always	Below 1 Ω
   S33-2 (MMRY) - Body ground	Always	10 kΩ or higher
   S33-4 (1) - Body ground	Always	10 kΩ or higher
   S33-3 (2) - Body ground	Always	10 kΩ or higher

Fig 2: Identifying S33 And O9 Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE OUTER MIRROR CONTROL ECU