Door Mirror Foot Light Circuit: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Active Test.
5. Check the operation.
   MAIN BODY:
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Side Mirror Foot Light	Door mirror foot light	ON / OFF	-

   OK

   Door mirror foot lights come on.

NG → See step   2 

OK → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK) 

1. Remove the G/H fuse from the engine room relay block.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   G/H fuse	Always	Below 1 Ω

NG → REPLACE FUSE 

OK: Go to next step 

1. Remove the door mirror foot light relay from the engine room relay block.
   Fig 1: Measuring Resistance Of Door Mirror Foot Light Relay (MIR LP)

   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
   3 - 5	Voltage is not applied between terminals 1 and 2	10 kΩ or higher
   3 - 5	Apply the battery voltage between terminals 1 and 2	Below 1 Ω

NG → REPLACE DOOR MIRROR FOOT LIGHT RELAY 

OK: Go to next step 

1. Remove the door mirror foot light relay from the engine room relay block.
   Fig 2: Checking Harness And Connector (Battery - Door Mirror Foot Light Relay)

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

   Standard voltage

   Tester Connection	Condition	Specified Condition
   Door mirror foot light relay terminal 5 - Body ground	Always	11 to 14 V
   Door mirror foot light relay terminal 2 - Body ground	Always	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the door mirror foot light relay from the engine room relay block.
   Fig 3: Checking Harness And Connector (Door Mirror Foot Light Relay - Main Body ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the D7 main body ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   Door mirror foot light relay terminal 1 - D7-4 (MLRY)	Always	Below 1 Ω
   D7-4 (MLRY) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6