Reverse Shift-linked Function of Power Mirrors does not Operate: Procedure

1. Use the Techstream to check if the CAN communication system is functioning normally. Refer to DIAGNOSIS SYSTEM .
   RESULT
   
   

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

B → See step   8 

A: Go to next step 

1. Check that the shift indicator of the combination meter operates normally.

   OK

   Shift indicator of combination meter operates normally.

NG → See step   9 

OK: Go to next step 

1. Check the Data List for proper functioning of the mirror position sensor. Refer to DATA LIST / ACTIVE TEST .
   MIRROR
   
   

   Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
   RH Mir Position Sensor V	RH side mirror vertical sensor voltage / MIN: 0 V, MAX: 5 V	Within range from 0 to 5 V	-
   LH Mir Position Sensor V	LH side mirror vertical sensor voltage / MIN: 0 V, MAX: 5 V	Within range from 0 to 5 V	-

   OK

   When mirror control switch is operated to turn mirror upward or downward, voltage changes within range shown in above chart.

   RESULT
   
   

   Result	Proceed to
   LH side mirror does not operate normally	A
   RH side mirror does not operate normally	B
   Mirror operates normally	C

C → See step   10 

B → See step   6 

A: Go to next step 

Fig 1: Checking Outer Mirror Control ECU (Power Source For Mirror Position Sensor)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   I18-2 (LVC) - I18-3 (LE1)	Engine switch on (IG)	4.7 to 5.5 V

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I18-3 (LE1) - Body ground	Always	Below 1 Ω

NG → See step   10 

OK: Go to next step 

1. Disconnect the I18 ECU connector.
   Fig 2: Identifying I18 ECU And I15 Mirror Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the I15 mirror connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I18-2 (LVC) - I15-8 (VC)	Always	Below 1 Ω
   I18-3 (LE1) - I15-17 (E1)
   I18-4 (VSR) - I15-18 (VSRL)
   I15-8 (VC) - Body ground	Always	10 kΩ or higher
   I15-17 (E1) - Body ground
   I15-18 (VSRL) - Body ground

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   11 

Fig 3: Identifying Outer Mirror Control I18 ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   I18-22 (RVC) - I18-23 (RE1)	Engine switch on (IG)	4.7 to 5.5 V

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I18-23 (RE1) - Body ground	Always	Below 1 Ω

NG → See step   10 

OK: Go to next step 

1. Disconnect the I18 ECU connector.
   Fig 4: Identifying I18 ECU Connector And I7 Mirror Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the I7 mirror connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I18-22 (RVC) - I7-8 (VC)	Always	Below 1 Ω
   I18-23 (RE1) - I7-17 (E1)
   I18-24 (VSRR) - I7-18 (VSSR)
   I7-8 (VC) - Body ground	Always	10 kΩ or higher
   I7-17 (E1) - Body ground
   I7-18 (VSSR) - Body ground

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   12