Inspection Procedure

1. Remove the STOP SW fuse from the cowl side J/B RH.
2. Check the STOP SW fuse.

   Resistance: 

   Below 1 Ω (Continuity) 

NG : REPLACE FUSE (STOP SW FUSE) 

OK : Go to Next Step 

1. Connect the Techstream to the DLC3.
2. Start the engine.
3. Select the Data List mode on the Techstream.

   ABS/VSC/TRAC: 

   TESTER DISPLAY REFERENCE CHART
   
   

   Tester Display	Measurement Item/Range	Normal Condition
   Stop Lamp SW	Stop light switch/ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released

4. Check that the stop light observed on the Techstream changes when the brake pedal is depressed.

   OK: 

   When the brake pedal is depressed, the Techstream displays "ON". 

NG :  Go to step  8

OK : Go to Next Step 

1. Disconnect the skid control ECU connector and stop light switch connector.
2. Measure the resistance according to the value (s) in the table below.

   Resistance 

   RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   A13-45 (STP) -A35-1	Below 1 Ω

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

   Resistance 

   RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   A13-45 (STP) - Body ground	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Checking Harness And Connector (Skid Control ECU To Stop Light Switch)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to Next Step 

1. Disconnect the stop light switch connector.
2. Measure the voltage according to the value (s) in the table below.

   Voltage 

   VOLTAGE REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   A35-2 - Body ground	10 to 14 V

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

Fig 2: Inspecting Stop Light Switch (Power Source Terminal)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to Next Step 

1. Disconnect the stop light switch connector.
2. Measure the resistance according to the value (s) in the table below.

   Resistance 

   RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Condition	Specified Condition
   1-2	Switch pin free	Below 1 Ω
   1-2	Switch pin pushed In	10 kΩ or higher

NG : REPLACE STOP LIGHT SWITCH 

Fig 3: Inspecting Stop Light Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to Next Step 

1. Disconnect the skid control ECU (A13, A15) connectors.
2. Measure the resistance according to the value (s) in the table below.

   Resistance 

   RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   A13-1 (GND) - Body ground	Below 1 Ω
   A15-1 (GND4) - Body ground	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT) 

Fig 4: Inspecting Skid Control ECU (GND Terminal)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to Next Step 

1. Clear the DTC (see DTC CHECK/CLEAR  ).
2. Start the engine.
3. Depress the brake pedal several times to test the stop light circuit.
4. Check if the same DTC is recorded (see DTC CHECK/CLEAR  ).

   HINT:

   Reinstall the sensors, connectors, etc. and restore the vehicle to its prior condition before rechecking for DTCs.

   Result 

   RESULT REFERENCE
   
   

   Display (DTC Output)	Proceed To
   DTC (C1249/49) Is not output	A
   DTC (C1249/49) Is output	B

   HINT:

   If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step (see PROBLEM SYMPTOMS TABLE  ).

B : REPLACE SKID CONTROL ECU 

A : END 

1. Disconnect the skid control ECU connector and luggage room J/B ECU connector.
2. Measure the resistance according to the value (s) in the table below.

   Resistance 

   RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   A13-45 (STP) - LC-32 (STP1)	Below 1 Ω
   A13-45 (STP) - Body ground	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 5: Checking Harness And Connector (Skid Control ECU To Luggage Room J/B ECU)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : INSPECT LIGHTING SYSTEM