Driver Side Seat Memory Switch Circuit: Procedure

1. Check for DTCs in the CAN communication system. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

   Result

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

B → REPAIR CIRCUITS INDICATED BY OUTPUT DTCS 

A: Go to next step 

1. Connect Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Read the DATA LIST.
   MIRROR:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Set Memory	Driver side SET memory switch/ON or OFF	ON: Driver side SET memory switch is ON OFF: Driver side SET memory switch is OFF	-
   D Mem 1 SW	Driver side memory switch 1/ON or OFF	ON: Driver side M1 memory switch is ON OFF: Driver side M1 memory switch is OFF	-
   D Mem 2 SW	Driver side memory switch 2/ON or OFF	ON: Driver side M2 memory switch is ON OFF: Driver side M2 memory switch is OFF	-

   OK

   On the tester screen, each item changes between ON and OFF according to the above chart.

NG → See step   3 

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

1. Remove the seat memory switch LH. Refer to INSPECTION - Step 1 .
2. Measure the resistance according to the value(s) in the table below.
   Fig 1: Identifying Seat Memory Switch LH

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Switch Position	Specified Condition
   I6-1 (E) - I6-2 (MMRY)	SET switch is pressed	Below 1 Ω
   	SET switch is not pressed	10 kΩ or higher
   I6-1 (E) - I6-3 (2)	M2 switch is pressed	Below 1 Ω
   	M2 switch is not pressed	10 kΩ or higher
   I6-1 (E) - I6-4 (1)	M1 switch is pressed	Below 1 Ω
   	M1 switch is not pressed	10 kΩ or higher

NG → REPLACE SEAT MEMORY SWITCH LH 

OK: Go to next step 

1. Measure the resistance according to the value(s) in the table below.
   Fig 2: Checking Harness And Connector (Seat Memory Switch LH Circuit)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Condition	Specified Condition
   I6-1 (E) - Body ground	Always	Below 1 Ω
   I6-1 (E) - I6-2 (MMRY)	Always	10 kΩ or higher
   I6-1 (E) - I6-3 (2)	Always	10 kΩ or higher
   I6-1 (E) - I6-4 (1)	Always	10 kΩ or higher

NG → See step   5 

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

1. Disconnect the outer mirror control ECU connector.
   Fig 3: Checking Harness And Connector (Outer Mirror Control ECU - Seat Memory Switch, Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E65-7 (M2) - I6-3 (2)	Always	Below 1 Ω
   E65-8 (M1) - I6-4 (1)	Always	Below 1 Ω
   E65-9 (MM) - I6-2 (MMRY)	Always	Below 1 Ω
   E65-10 (MSWE) - I6-1 (E)	Always	Below 1 Ω
   E65-10 (MSWE) - Body ground	Always	Below 1 Ω
   I6-1 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE OUTER MIRROR CONTROL ECU