Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT AIR CONDITIONING AMPLIFIER (TS - S5)

Remove the A/C amplifier with connectors still connected.

Measure the voltage according to the value(s) in AIR CONDITIONING AMPLIFIER (TS - S5) VOLTAGE .

Standard:

Move the light away from the sensor under the following conditions: voltage increases
Move the light closer to the sensor under the following conditions: voltage decreases

AIR CONDITIONING AMPLIFIER (TS - S5) VOLTAGE

Tester connection	Condition	Specified condition
A11-28 (S5) - A11-25 (TS)	Ignition switch ON	0.8 to 4.3 V

Fig 1: Inspecting Air Conditioning Amplifier (TS - S5)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

Use an incandescent lamp for inspection. Bring it within 30 cm (11.8 in.) of the A/C solar sensor (cooler (solar sensor) thermistor)

Result:

AIR CONDITIONING AMPLIFIER (TS - S5) INSPECTION RESULT

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 (SEE TERMINALS OF ECU )
C: REPLACE AIR CONDITIONING AMPLIFIER (SEE OVERHAUL )
A: Go to Next Step.

INSPECT A/C SOLAR SENSOR (COOLER (SOLAR SENSOR) THERMISTOR)

Remove the A/C solar sensor (cooler (solar sensor) thermistor).
Measure the resistance according to the value(s) in A/C SOLAR SENSOR (COOLER (SOLAR SENSOR) THERMISTOR) RESISTANCE .

Connect the positive (+) lead from the ohmmeter to terminal 1 and negative (-) lead to terminal 2 of the A/C solar sensor.

Standard:

A/C SOLAR SENSOR (COOLER (SOLAR SENSOR) THERMISTOR) RESISTANCE

Tester connection	Condition	Specified condition
A13-1 (SS+) - A13-2 (SS-)	Sensor is subject to electric light	Except "infinity" Ω
A13-1 (SS+) - A13-2 (SS-)	Sensor is covered with a cloth	No continuity)

Fig 2: Inspecting A/C Solar Sensor (Cooler (Solar Sensor) Thermistor)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: The connection procedure for using a digital tester such as an TOYOTA electrical tester is shown Fig 2 . When using an analog tester, connect the positive (+) lead to terminal 2 and negative (-) lead to terminal 1 of the A/C solar sensor.

HINT:

As the inspection light is moved away from the sensor, the voltage increases.
Use an incandescent lamp for inspection. Bring it within 30 cm (11.8 in.) of the A/C solar sensor (cooler (solar sensor) thermistor).

NG: REPLACE A/C SOLAR SENSOR (COOLER (SOLAR SENSOR) THERMISTOR)
OK: Go to Next Step.

CHECK HARNESS AND CONNECTOR (A/C SOLAR SENSOR (COOLER (SOLAR SENSOR) THERMISTOR) - AIR CONDITIONING AMPLIFIER) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE )

Measure the resistance according to the value(s) in A/C SOLAR SENSOR (COOLER (SOLAR SENSOR) THERMISTOR) - AIR CONDITIONING AMPLIFIER) RESISTANCE .

Standard:

A/C SOLAR SENSOR (COOLER (SOLAR SENSOR) THERMISTOR) - AIR CONDITIONING AMPLIFIER) RESISTANCE

Tester connection	Condition	Specified condition
A11-28 (S5) - A13-1	Always	Below 1 Ω
A11-25 (TS) - A13-2	Always	Below 1 Ω
A11-28 (S5) - Body ground	Always	10 kΩ or higher
A11-25 (TS) - Body ground	Always	10 kΩ or higher

Fig 3: Checking Harness & Connector (A/C Solar Sensor (Cooler (Solar Sensor) Thermistor) - Air Conditioning Amplifier)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE AIR CONDITIONING AMPLIFIER (SEE OVERHAUL )