Dtc B1424/24 Solar Sensor Circuit (Driver Side)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER

CHECK HARNESS AND CONNECTOR (SOLAR SENSOR)

CHECK HARNESS AND CONNECTOR (SOLAR SENSOR - MAIN BODY ECU)

CHECK SOLAR SENSOR

CHECK HARNESS AND CONNECTOR (SOLAR SENSOR - A/C AMPLIFIER)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

1. If DTC B1244 is output at the same time, troubleshoot DTC B1244 first (CAMRY_ACV40 RM0000011M1008X.html).
   
2. If the check is performed in a dark place, DTC B1421/21 or B1424/24 (solar sensor circuit abnormal) may be output even though the system is normal.
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
   

3. Expose the sensing portion of the solar sensor to light.
   

   HINT:

   Use an incandescent light for inspection.

4. Select the item below in the Data List, and read the display on the intelligent tester.
   

OK:

The display is as specified in the normal condition column.

Result:

Result	Proceed to
NG	A
OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE)	B
OK (When troubleshooting according to the DTC)	C

1. Disconnect the solar sensor connector.
   

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   E11-6 (CLTB) - E11-3 (CLTE)	Ignition switch: ON	10 to 14 V
   E11-6 (CLTB) - E11-3 (CLTE)	Ignition switch: LOCK	Below 1 V

1. Disconnect the main body ECU connector.
   

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

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   E6-20 (CLTB) - E11-6 (CLTB)	Always	Below 1 Ω
   E6-18 (CLTE) - E11-3 (CLTE)	Always	Below 1 Ω
   E6-20 (CLTB) - Body ground	Always	10 kΩ or higher
   E6-18 (CLTE) - Body ground	Always	10 kΩ or higher

1. Remove the solar sensor with its connector still connected.
   

2. Connect the positive (+) lead from the battery to terminal 6 (CLTB), and the negative (-) lead to terminal 3 (CLTE) of the solar sensor.
   

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

   Standard voltage:

   LHD:

   Tester Connection	Condition	Specified Condition
   E11-1 (TSL) - E11-3 (CLTE)	Sensor is subjected to electric light	0.8 to 4.3 V
   E11-1 (TSL) - E11-3 (CLTE)	Sensor is covered with a cloth	Below 0.8 V

   RHD:

   Tester Connection	Condition	Specified Condition
   E11-2 (TSR) - E11-3 (CLTE)	Sensor is subjected to electric light	0.8 to 4.3 V
   E11-2 (TSR) - E11-3 (CLTE)	Sensor is covered with a cloth	Below 0.8 V

   NOTICE:

   1. The connection procedure for using a digital tester such as a TOYOTA electrical tester is shown above. When using an analog tester, connect the negative (-) lead to terminal 6, and the positive (+) lead to terminal 3 of the solar sensor.
      
   2. While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.
      

   HINT:

   1. Use an incandescent light for inspection. Bring it within about 30 cm (11.8 in.) of the solar sensor.
      
   2. As the inspection light is moved away from the sensor, the voltage decreases.
      

1. Disconnect the solar sensor connector.
   

2. Disconnect the A/C amplifier connector.
   

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

   Standard resistance:

   LHD:

   Tester Connection	Condition	Specified Condition
   E38-33 (TSD) - E11-1 (TSL)	Always	Below 1 Ω
   E38-33 (TSD) - Body ground	Always	10 kΩ or higher

   RHD:

   Tester Connection	Condition	Specified Condition
   E38-33 (TSD) - E11-2 (TSR)	Always	Below 1 Ω
   E38-33 (TSD) - Body ground	Always	10 kΩ or higher