Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

READ VALUE OF INTELLIGENT TESTER (SOLAR SENSOR D SIDE)

Connect the intelligent tester (with CAN VIM) to the DLC3.
Turn the ignition switch ON and turn the intelligent tester main switch ON.

Select the item below in the DATA LIST, and read the value displayed on the intelligent tester.

Air conditioning amplifier

DATA LIST DETAIL

Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
SOLAR SENS-D	Driver side solar sensor / Min.: 0, Max.: 255	Driver side temperature increases as brightness increases	-

OK :

The display is as specified in the normal condition column.

Result

RESULT REFERENCE

Result	Proceed to
NG	A
OK (Checking from the PROBLEM SYMPTOMS TABLE)	B
OK (Checking from the DTC)	C

B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

C: REPLACE AIR CONDITIONING AMPLIFIER

A: GO TO NEXT STEP.

INSPECT SOLAR SENSOR

Remove the solar sensor.
Measure the resistance of the sensor.

Connect the ohmmeter's positive (+) lead to terminal 1 and the negative (-) lead to terminal 3 of the solar sensor.

Fig 1: Identifying Solar Sensor Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard resistance

TERMINALS RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
1 (SS) - 3 (TSD)	Sensor exposed to electric light	Except infinity ohms
1 (SS) - 3 (TSD)	Sensor covered with cloth	Infinity ohms (No continuity)

NOTE: The connection procedure for using a digital tester such as an electrical tester is shown above. When using an analog tester , connect the positive (+) lead to terminal 3 and the negative (-) lead to terminal 1 of the solar sensor.

HINT:

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

NG: REPLACE SOLAR SENSOR

OK: GO TO NEXT STEP.

CHECK WIRE HARNESS (SOLAR SENSOR - AIR CONDITIONING AMPLIFIER)

Disconnect the F1 sensor connector.
Disconnect the E37 amplifier connector.

Fig 2: Disconnecting F1 & E37 Connectors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the wire harness side connectors.

Standard resistance

TERMINALS RESISTANCE SPECIFICATION (CONNECTOR(S) DISCONNECTED)

Tester Connection	Specified Condition
E37-33 (TSD) - F1-3 (TSD)	Below 1
E37-31 (S5-4) - F1-1 (SS)	Below 1
E37-33 (TSD) - Body ground	1 M or higher
E37-31 (S5-4) - Body ground	1 M or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE AIR CONDITIONING AMPLIFIER