Inspection Procedure

READ VALUE OF INTELLIGENT TESTER

(a) Connect the intelligent tester to the DLC3.

(b) Turn the ignition switch on (IG) and push the intelligent tester main switch on.

(c) Select the item below in the DATA LIST, and read the display on the intelligent tester.

DATA LIST / AIR CONDITIONER:

Item

Measurement Item / Display (Range)

Normal Condition

Diagnostic Note

SOLAR SENS-D

Solar sensor (Driver side) / min.: 0 max.: 255

Increases as brightness increases

-

The display is as specified in the normal condition.

Result

The display is as specified in the normal condition.

Result

Result

Proceed to

NG

A

OK (Checking from the PROBLEM SYMPTOMS TABLE)

B

OK (Checking from the DTC)

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE AIR CONDITIONING AMPLIFIER

INSPECT MULTIPLEX NETWORK BODY ECU (CLTB - CLTE)

Multiplex Network Body ECU Connector Wire Harness View:

17 16 15 14 13 12 TTsllO 9 8 7

26

25

24

23

22

(a) Remove the multiplex network body ECU with connectors sill connected.

(b) Turn the ignition switch on (IG).

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

Voltage

I036154E07

Tester Connection (Symbols)

Condition

Specified Condition

D7-6 (CLTB) - D7-4 (CLTE)

Ignition switch on (IG)

1G to 14 V

Go to step 4

Go to step 4

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BDY ECU - A/C SOLAR SENSOR)

Multiplex Network Body ECU Connector Wire Harness View:

5

4S

3

2

1 ~j

\

,7

16

15

14

13

12

10

9

8

7

26 25 24 23 22 Hl 21 2SU19

26 25 24 23 22 Hl 21 2SU19

I036154E08

(a) Disconnect the connector from the A/C solar sensor.

(b) Disconnect the connector from the multiplex network body ECU.

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

Resistance

I036154E08

Tester Connection (Symbols)

Condition

Specified Condition

F1-6 (CLTB) - D7-6 (CLTB)

Always

Below 1 Q

F1-3 (CLTE) - D7-4 (CLTE)

Always

Below 1 Q

F1-6 (CLTB) - Body ground

Always

10 kQ or higher

F1-3 (CLTE) - Body ground

Always

10 kQ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MULTIPLEX NETWORK BODY ECU

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

A/C Solar Sensor Connector Wire Harness View:

TSL-

CEi>

(a) Disconnect the connector from the A/C solar sensor.

Air Conditioning Amplifier Wire Harness View:

Air Conditioning Amplifier Wire Harness View:

(b) Disconnect the connector from the A/C amplifier.

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

Resistance

Tester Connection (Symbols)

Condition

Specified Gondition

D37-35 (TSD) - F1-1 (TSL)

Always

Below 1 Q

D37-35 (TSD) - Body ground

Always

1G kQ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

INSPECT A/C SOLAR SENSOR

(a) Remove the A/C solar sensor.

(b) Apply battery voltage between terminals F1-3 (CLTE) and F1-6 (CLTB) of the A/C solar sensor.

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

Voltage

Tester Gonnection (Symbols)

Condition

Specified Gondition

F1-1 (TSL) - F1-3 (GLTE)

Sensor is subject to electric light

4.G to 4.6 V

F1-1 (TSL) - F1-3 (GLTE)

Sensor is subject to electric light

• The connection procedure for using a digital tester such as a TOYOTA electrical tester is shown above. when using an analog tester, connect the positive (+) lead to terminal 2 and negative (-) lead to terminal 1 of the solar sensor.

• 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:

• As the inspection light is moved away from the sensor, the voltage increases.

• Use an incandescent light for inspection. Bring it within 30 cm (11.8 in.) of the solar sensor.

REPLACE A/C SOLAR SENSOR

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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