Last Modified: 4-30-2014 6.6 G Doc ID: RM0000018SM001X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: AIR CONDITIONING: HEATER RELAY: ON-VEHICLE INSPECTION; 2006 MY LX470 [05/2005 -        ]

ON-VEHICLE INSPECTION

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

2. REMOVE HEATER RELAY (Marking: HTR)

(a) Remove the heater main relay from the engine room relay block.

3. CHECK HEATER RELAY

(a) Check the continuity of the relay.

Standard resistance:

Condition

Tester Connection

Specified Condition

Always

3 - 4

10 kΩor higher

3 - 5

Below 1 Ω

Apply B+ between

terminals 1 and 2

3 - 4

Below 1 Ω

3 - 5

10 kΩor higher

If the result is not as specified, replace the relay.

4. INSTALL HEATER RELAY

5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

6. PERFORM INITIALIZATION

(a) Perform initialization 2006 MY LX470 [05/2005 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION .

NOTICE:

Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.