Last Modified: 6-7-2017 6.8:8.0.40 Doc ID: RM0000018SV000X
Model Year Start: 2006 Model: Land Cruiser Prod Date Range: [05/2005 -           ]
Title: AIR CONDITIONING: REAR COOLER CONTROL PANEL: INSPECTION; 2006 MY Land Cruiser [05/2005 -        ]

INSPECTION

1. INSPECT ILLUMINATION LIGHT

(a) Connect the positive (+) lead to terminal 2 and negative (-) lead to terminal 21 then check that the indicators come on.

If operation is not as specified, replace the rear heater control assembly.

2. INSPECT INDICATOR

(a) Connect the positive (+) lead all the other terminals to terminal 1 and negative (-) lead to, then check that the indicator comes on, as shown in the chart.

OK:

Switch

Tester Connection

Specified Condition

Auto

3

Indicator Light Illuminates

LO

4

Indicator Light Illuminates

ME

5

Indicator Light Illuminates

HI

6

Indicator Light Illuminates

FACE

7

Indicator Light Illuminates

Bi-Level

8

Indicator Light Illuminates

FOOT

9

Indicator Light Illuminates

If operation is not as specified, replace the rear heater control assembly.

(b) Connect the positive (+) lead from the battery to terminal 2, then check the indicators dim.

If operation is not as specified, replace the rear heater control assembly.

3. INSPECT HEATER CONTROL SWITCH

(a) Check the continuity between terminals while switch is pressed, as shown in the chart.

Standard resistance:

Switch

Tester Connection

Specified Condition

Auto

13 - 22

Below 1 Ω

OFF

14 - 22

Below 1 Ω

LO

15 - 22

Below 1 Ω

ME

16 - 22

Below 1 Ω

HI

17 - 22

Below 1 Ω

FACE

18 - 22

Below 1 Ω

Bi-Level

19 - 22

Below 1 Ω

FOOT

20 - 22

Below 1 Ω

If the result is not as specified, replace the rear heater control assembly.

4. INSPECT VARIABLE RESISTOR

(a) Measure resistance between terminal 11 and 12.

Standard resistance:

3.0 kΩ

(b) Gradually move the temperature control lever from "COOL" side to "WARM" side, then check that the resistance between terminal 11 and 12 increase to 3.0 kΩ.

If operation is not as specified, replace the rear heater control assembly.